Terms of Service

Last updated: 2026-04-28. Effective from: 2026-04-25.

Operator. The Service is operated by ФОП Даценко А.В. (A.V. Datsenko, sole proprietor registered in Ukraine), РНОКПП 3339403456 ("CallPing", "we", "us", "our"). Mailing address: Plytkova str. 65/106, Kharkiv, Kharkivska oblast, 61047, Ukraine. Full contact details are in §17.

1. Acceptance of Terms

By creating an account or using any part of the CallPing service (the "Service"), you ("you", "your", "Customer") agree to be bound by these Terms of Service (the "Terms"). If you are accepting these Terms on behalf of an organization, you represent that you have the authority to bind that organization, and "you" will refer to that organization.

If you do not agree to these Terms, do not use the Service.

2. Description of Service

CallPing is a webhook-to-phone-call alerting platform. The Service receives HTTP webhook requests at user-configured endpoints, parses them according to user-configured rules, and routes outbound phone calls to user-specified phone numbers using third-party SIP trunk providers. The Service is operated as a cloud-hosted SaaS application.

The Service is publicly available. Pricing, plan structure, billing cadence, and quotas are described on the Pricing page and govern Paid Plans. An active subscription (or a free trial that auto-converts to a Paid Plan) is required to use the Service. See Section 7 for the Service Disclaimer, Section 7b for paid-plan cancellation and lifecycle terms, and Section 15 for the notice we provide before material changes take effect.

3. Eligibility

To use the Service, you must:

• Be at least 18 years of age, or the age of legal majority in your jurisdiction, whichever is greater.
• Have the legal capacity to enter into a binding contract.
• Not be barred from using the Service under the laws of your jurisdiction.
• Agree to and comply with our Acceptable Use Policy ("AUP"), which is incorporated into these Terms by reference.

Where you accept these Terms on behalf of a legal entity (company, organization, or partnership), the age requirement applies to the individual accepting the Terms, and you additionally represent that you have authority to bind that entity. References to "you" or "your" in these Terms then refer both to the individual and to the legal entity, as the context requires.

CallPing is not directed at children. We do not knowingly collect data from individuals under 18.

4. Account Registration and Security

You are responsible for:

• Providing accurate, current, and complete registration information.
• Maintaining the confidentiality of your account credentials.
• All activity that occurs under your account, whether or not authorized by you.
• Promptly notifying us of any unauthorized access or suspected security breach affecting your account.

We strongly recommend enabling two-factor authentication (TOTP) on your account where available.

5. License Grant

Subject to your compliance with these Terms and the AUP, CallPing grants you a limited, non-exclusive, non-transferable, non-sublicensable, revocable license to access and use the Service for your internal business or personal alerting purposes during the term of your account.

This license does not grant you any rights to:

• Resell, redistribute, sublicense, or commercially exploit the Service.
• Reverse-engineer, decompile, or disassemble any part of the Service, except to the extent such restrictions are prohibited by applicable law.
• Use the Service to build a competing product.
• Remove or alter any proprietary notices.

6. Acceptable Use

Your use of the Service is governed by the Acceptable Use Policy. The AUP forms part of these Terms. Violations of the AUP may result in suspension or termination of your account at our discretion.

7. Service Disclaimer

7a. Paid Plan Service Terms

The Service is offered through paid subscription plans described on the Pricing page. By subscribing to or remaining on a Paid Plan, you acknowledge that:

• Service availability — best-effort, no contractual SLA at v1.1.0. We operate the Service on a commercially reasonable best-effort basis. No specific uptime target is guaranteed and no service credits or compensation are payable for downtime on the Solo or Team self-serve plans. A commercial SLA with service credits and a defined uptime target is available for Enterprise tier customers — contact us to discuss.
• Right to discontinue. We may discontinue the Service or any individual user's access on at least thirty (30) days' advance written notice (by email and in-app banner) for active Paid Plan customers, except where immediate suspension is permitted under Section 9 (e.g., AUP violation, security risk, fraud). On a discontinuation announcement, you may cancel for a pro-rated refund of any prepaid unused period — see Section 7b (Cancellation and Subscription Lifecycle).
• Cancellation rights. You may cancel a Paid Plan at any time through the Paddle customer portal, accessed from the in-app billing page. The cancellation rules in Section 7b apply.
• Free trials. Where the Service offers a free trial (currently a 14-day trial with payment method captured at signup), the trial period is part of the subscription. At the end of the trial, your subscription auto-converts to the Paid Plan you selected at signup and your card is charged at the corresponding rate: Solo at USD $12/user/mo (annual billing) or USD $14/user/mo (monthly billing); Team at USD $19/user/mo (annual billing) or USD $24/user/mo (monthly billing). Current pricing is published at callping.app/pricing. Cancelling before day 15 — i.e., before the trial period expires; Paddle's billing fires at the start of day 15 in the timezone Paddle uses for billing — avoids the auto-conversion charge. Failing to cancel before the end of the trial results in conversion to the selected Paid Plan and is treated as the start of a paid subscription for purposes of refund rights (see Refund Policy).
• Right of withdrawal (EU/UK consumers). Consumers in the European Union and the United Kingdom have a 14-day right of withdrawal under EU Directive 2011/83/EU and UK Consumer Contracts Regulations 2013, subject to the conditions described in the Refund Policy. Where you have expressly consented to immediate provision of digital services and we have begun providing the Service before the 14-day period expires, you may have waived the right of withdrawal under Article 16(m) of the Consumer Rights Directive. Paddle's hosted checkout flow captures this consent at the moment of payment capture. CallPing has requested written confirmation from Paddle that their checkout consent flow satisfies Directive 2011/83/EU Art. 16(m) across all relevant EU/UK jurisdictions; pending receipt of that confirmation, where a consumer disputes the waiver in good faith we treat the right of withdrawal as unwaived and process the refund under the standard 14-day withdrawal mechanic. Business subscribers (legal entities or natural persons acting in the course of a trade or business) do not benefit from the 14-day right of withdrawal; their refund rights are governed solely by §3–§8 of the Refund Policy.

7b. Cancellation and Subscription Lifecycle (Paid Plans)

The following rules apply to Paid Plan subscriptions:

• How to cancel. Cancellations are initiated through the Paddle customer portal, accessed from the in-app billing page (/billing). The portal is the primary and auditable cancellation path; the cancellation timestamp recorded by Paddle is the canonical effective date. As a fallback, you may email [email protected] with the subject line "Cancel subscription"; we confirm email cancellation requests within two (2) business days, and the cancellation is effective from the date we send confirmation, not from the date you sent the request. We strongly recommend the Paddle portal for time-sensitive cancellations (including 14-day right-of-withdrawal cases).
• Effect of cancellation on monthly subscriptions. Service continues through the end of the then-current billing period. No refund is issued for the unused remainder of the period unless the Refund Policy provides otherwise (e.g., 14-day right of withdrawal for EU/UK consumers; erroneous-charge rule).
• Effect of cancellation on annual subscriptions. Service continues through the end of the prepaid annual period. Refund treatment is governed by the Refund Policy: pro-rated refund within the 14-day window for EU/UK consumers; otherwise, no refund of the unused remainder after 14 days is offered. Where you are a consumer in the EU or UK and applicable mandatory consumer-protection law provides a broader remedy than this clause, that mandatory remedy applies and this clause is read down accordingly.
• Non-payment grace period. If a renewal payment fails, Paddle's standard dunning workflow applies (typically multiple retry attempts over 7–14 days). The Service remains available through this dunning window. If the invoice remains past_due fourteen (14) days after the original due date, the account will be downgraded to the read-only "expired" state described in Section 7c and on the Pricing page.
• Data on cancellation. When a subscription is cancelled and not renewed, your account moves to a read-only "expired" state on the day after the paid period ends. Data is preserved for ninety (90) days in this state to allow plan reactivation, data export, or contact with support; after 90 days, the data is deleted in accordance with the Privacy Policy. Re-subscribing within the 90-day window restores access without data loss.
• Plan changes. Upgrading a Paid Plan takes effect immediately, with proration handled by Paddle (the difference between the old and new plan's remaining-period cost is invoiced or credited at the next bill). Downgrading a Paid Plan takes effect at the end of the then-current billing period.
• Reference customers. A small number of named reference customers operate on a non-revocable administratively-set plan and are not subject to the auto-renewal, dunning, or expired-state rules above. Status as a reference customer is documented internally and is not user-purchasable.

7c. Read-Only Expired State

When a Paid Plan ends (whether by cancellation, dunning failure, or grace expiry without plan choice), the org enters a read-only "expired" state in which:

• All portal views remain accessible (data preservation; allows export, plan choice, contact with support).
• Outbound phone calls are not placed; queued messages are rejected with a plan_expired status visible in call_logs.
• Webhook intake continues to receive an HTTP 202 Accepted response (so upstream monitoring stacks do not error-flood), but no phone calls are initiated. The Service does not affirmatively notify upstream systems that calls were suppressed — you should treat the absence of a delivered call (not the HTTP response code) as the authoritative signal of delivery. The customer's in-portal dashboard surfaces the expired state.
• Re-subscribing to any active Paid Plan restores call delivery on the next webhook event after the subscription is recorded.

8. Customer Content

"Customer Content" means the data you submit to the Service, including but not limited to webhook payloads, phone numbers, alert rules, scenario definitions, and account metadata.

You retain all rights, title, and interest in your Customer Content. You grant CallPing a worldwide, non-exclusive, royalty-free license to host, store, parse, transform, and transmit your Customer Content solely as necessary to operate the Service for you — for example, to evaluate your routing rules, place outbound phone calls on your behalf, store call logs, and provide audit history.

You represent and warrant that:

• You have all necessary rights and consents to submit your Customer Content to the Service.
• You have obtained any required consent from any individual whose phone number is configured to be called by the Service.
• Your Customer Content does not violate the AUP, infringe any third-party rights, or violate any law.

8a. United States and Canada — Telecom Compliance (Customer Responsibility)

If you configure the Service to place calls to recipients in the United States, you are solely responsible for compliance with the Telephone Consumer Protection Act (TCPA), 47 U.S.C. § 227, and applicable U.S. Federal Communications Commission (FCC) regulations. This includes, without limitation, obtaining prior express consent (and, where applicable, prior express written consent) from each recipient before configuring the Service to place automated alert calls to that recipient's number, maintaining records of such consent, and honoring opt-out requests. TCPA violations carry statutory damages of USD $500 to $1,500 per call. Nothing in the Service is intended to, or operates to, satisfy the consent-collection or record-keeping obligations of the TCPA on your behalf.

Canada — CASL and CRTC compliance. If you configure the Service to place calls to phone numbers in Canada, you are solely responsible for compliance with Canada's Anti-Spam Legislation (S.C. 2010, c. 23, "CASL") for any communications that fall within its scope, and with the Canadian Radio-television and Telecommunications Commission's Unsolicited Telecommunications Rules (which govern automatic dialling, "robocalling," prerecorded messages, and curfew rules for outbound automated voice calls). CASL violations carry penalties of up to CAD $10 million per violation; CRTC Unsolicited Telecommunications Rules violations carry separate Administrative Monetary Penalty exposures. Nothing in the Service is intended to, or operates to, satisfy the consent-collection or compliance obligations imposed by CASL or the CRTC Rules on your behalf.

8b. Data Processing Addendum (B2B EU / UK / equivalent)

For customers who are businesses subject to the EU General Data Protection Regulation (Regulation (EU) 2016/679, "GDPR"), the UK GDPR, or equivalent data-protection law, and who use the Service to process personal data on behalf of their organization (including data subjects' phone numbers and any personal data appearing in webhook payloads), the CallPing Data Processing Addendum (the "DPA") applies automatically as part of these Terms upon account creation by a business customer. The DPA is published at callping.app/legal/dpa and may be downloaded as part of your records. The DPA is auto-applying — no separate signature flow is required. In the event of any conflict between these Terms and the DPA on a data-processing matter, the DPA prevails.

9. Termination

By you. You may close your account at any time from the account settings page. Upon closure, your data will be retained or deleted in accordance with our Privacy Policy.

By us. We may suspend or terminate your access to the Service:

• Immediately, if you violate the AUP or these Terms.
• Immediately, if your use of the Service creates a security or legal risk to us or to other users.
• With reasonable notice, if we discontinue the Service.

Upon termination, your license to use the Service ends. Sections of these Terms that by their nature should survive termination (including intellectual property, disclaimers, limitation of liability, indemnification, and governing law) will survive.

10. Intellectual Property

All right, title, and interest in and to the Service, including all software, design, documentation, brand assets, and trademarks, are and will remain the exclusive property of ФОП Даценко А.В. (РНОКПП 3339403456, "CallPing") and its licensors. If CallPing later transfers operation of the Service to a successor legal entity (for example, an incorporated company), the IP rights described in this Section transfer with it; we will update this Section and notify users in accordance with Section 15.

Nothing in these Terms grants you any right, title, or interest in the Service except for the limited license granted in Section 5.

11. Disclaimers and Warranties

THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE", WITHOUT WARRANTIES OF ANY KIND, whether express, implied, statutory, or otherwise. To the maximum extent permitted by applicable law, CallPing disclaims all warranties, including but not limited to warranties of merchantability, fitness for a particular purpose, non-infringement, accuracy, and uninterrupted or error-free operation.

You specifically acknowledge that:

• CallPing does not guarantee that any phone call will be placed, answered, completed, or delivered. Phone-call delivery depends on third-party SIP trunk providers (currently including, but not limited to, Zadarma, Intertelecom, Twilio, and Telnyx — the active provider list may change over time as carriers are added, removed, or substituted), telephone carriers, and the recipient's own equipment. Any of these third parties may experience outages, blocking, or routing changes at any time without notice to us.
• CallPing must not be relied upon as the sole means of alerting for any safety-critical, life-critical, or regulated alerting use case. You are responsible for maintaining redundant alerting paths appropriate to the criticality of your operations.
• The Service may include integrations with or dependencies on third parties (including SIP trunks, cloud infrastructure providers, and email delivery providers). We are not responsible for the acts, omissions, or outages of third parties.

Mandatory consumer-protection rights are preserved. Nothing in this Section limits or excludes any rights you have as a consumer under mandatory consumer-protection law of your country of residence, including without limitation the Law of Ukraine "On Consumer Protection" for Ukrainian consumers, the UK Consumer Rights Act 2015 for UK consumers, and equivalent EU member-state consumer-protection rules implementing EU Directives 2011/83/EU and 2019/770/EU for EU consumers. Where a warranty disclaimer in this Section is broader than applicable mandatory law allows, the disclaimer is read down to the maximum scope permitted by that mandatory law and the rest remains in force.

12. Limitation of Liability

To the maximum extent permitted by applicable law:

• In no event will CallPing be liable for any indirect, incidental, special, consequential, exemplary, or punitive damages, including but not limited to lost profits, lost revenue, lost data, loss of goodwill, or business interruption, regardless of the legal theory and regardless of whether we have been advised of the possibility of such damages.
• Aggregate liability cap (Paid Plan customers). For users who hold or have held an active Paid Plan, CallPing's aggregate liability arising out of or related to these Terms or the Service in respect of all events occurring during a Paid Plan will not exceed the greater of (a) the amount paid by you in respect of the Service in the twelve (12) months preceding the event giving rise to the claim, as evidenced by Paddle transaction records, or (b) USD $100, except where applicable law requires a higher minimum. The Paddle transaction-record formulation is used because Paddle is our merchant of record and processes payments from you to us. Free-trial periods that did not convert to a paid subscription do not generate fees and therefore do not contribute to the cap calculation.

Mandatory rights. Nothing in this section limits or excludes any liability that cannot be limited or excluded under applicable law, including (a) liability for death or personal injury caused by negligence; (b) liability for fraud or fraudulent misrepresentation; (c) liability for gross negligence or willful misconduct; (d) any statutory rights that consumers cannot waive under the laws of their country of residence. If you are a consumer resident in the European Union, the United Kingdom, or another jurisdiction with mandatory consumer-protection laws, those laws may give you rights that override the limitations above.

13. Indemnification

By you. You agree to indemnify, defend, and hold harmless CallPing and its officers, employees, and agents from and against any claims, liabilities, damages, losses, costs, and expenses (including reasonable attorneys' fees) arising out of or related to:

• Your Customer Content.
• Your use of the Service in violation of these Terms or the AUP.
• Your violation of any law or third-party right.
• Any phone call placed by the Service to a recipient who has not consented to receive automated alerts at that number.

By us (intellectual-property infringement). CallPing will defend and indemnify you against third-party claims that the Service, as provided by CallPing and used by you in accordance with these Terms, infringes that third party's intellectual-property rights. This indemnification does not apply to the extent the claim arises from (a) your Customer Content, (b) your use of the Service outside the scope of these Terms, (c) modifications to the Service made by you or a third party at your direction, or (d) combinations of the Service with non-CallPing software, hardware, or data not authorized by us in writing. Our liability under this paragraph is subject to the limits in Section 12.

14. Governing Law and Dispute Resolution

Governing law. These Terms and any dispute or claim (including non-contractual disputes or claims) arising out of or in connection with them or their subject matter or formation are governed by the laws of Ukraine.

Mandatory consumer-protection carve-out. Where you are a consumer (a natural person acting outside the scope of business activity) resident in a jurisdiction whose law provides mandatory consumer-protection rights that cannot be excluded by contract, the mandatory consumer-protection laws of your country of residence apply to that extent and are not excluded by the choice of Ukrainian law in this Section. This includes, without limitation:

• The Law of Ukraine "On Consumer Protection" for Ukrainian consumers.
• The EU Rome I Regulation (Regulation (EC) No 593/2008) Article 6 mandatory protections for EU consumers.
• The UK Consumer Contracts Regulations 2013 and UK Consumer Rights Act 2015 for UK consumers.

Litigation forum. B2B disputes: the courts of Ukraine have exclusive jurisdiction over disputes between CallPing and a Customer who is a business (legal entity or natural person acting in the course of a trade or business), except as required by mandatory law or by the arbitration sub-clause below. Consumer disputes — EU/UK: Notwithstanding the choice of Ukrainian law in this Section, EU and UK consumers retain the right to bring proceedings in the courts of their country of habitual residence in accordance with Article 17–19 of Regulation (EU) No 1215/2012 ("Brussels Ibis") and equivalent UK rules. CallPing will not invoke the Ukrainian-courts clause to deprive an EU/UK consumer of that right.

Dispute resolution. Before initiating formal proceedings, the parties agree to attempt in good faith to resolve any dispute by written negotiation, with each side designating a representative authorized to settle. If the dispute is not resolved within thirty (30) days of the first written notice, either party may pursue any remedy available under the governing law in this Section. Nothing in this paragraph prevents either party from seeking urgent injunctive relief or any consumer from accessing a competent regulator or court in their country of residence.

B2B commercial disputes — international arbitration option. For disputes between CallPing and a business Customer that are not resolved by the negotiation process above within sixty (60) days of first written notice, either party may refer the dispute to arbitration administered by the International Chamber of Commerce (ICC) under the ICC Rules of Arbitration. The seat of arbitration shall be Kyiv, Ukraine, and proceedings shall be conducted in English. The arbitral tribunal shall consist of one arbitrator. This sub-clause does not apply to consumer disputes, which remain governed by the consumer-protection carve-out and the EU/UK litigation-forum provisions above.

EU Online Dispute Resolution. If you are a consumer resident in the European Union, you may use the European Commission's Online Dispute Resolution platform to resolve disputes: https://ec.europa.eu/consumers/odr. Our contact email for ODR purposes is: [email protected].

15. Changes to These Terms

We may update these Terms from time to time. When we do, we will:

• Update the "Last updated" date at the top of this document.
• Notify active users by email and via an in-app notice for material changes.
• Provide at least thirty (30) days' notice before material changes take effect, where reasonably practicable.

For purposes of this Section, material changes include, without limitation:

• Changes to pricing, billing terms, plan structure, or quota limits.
• Changes to data processing practices that meaningfully affect the rights of users or data subjects.
• Changes to the limitation of liability (Section 12), indemnification (Section 13), or warranty disclaimers (Section 11).
• Changes to the governing law or dispute-resolution mechanism (Section 14).
• Changes to the Acceptable Use Policy that introduce new prohibited categories of use.

Non-material changes (e.g., editorial corrections, clarifying examples, internal-process language) may be made without 30-day advance notice; the "Last updated" date will still be revised.

Your continued use of the Service after changes take effect constitutes acceptance of the revised Terms. If you do not agree to the changes, you must stop using the Service and may close your account.

EU/UK consumer right to terminate on material change. Where you are a consumer in the European Union or the United Kingdom and a change to these Terms materially affects your rights, you may terminate your subscription without penalty within thirty (30) days of the change taking effect and receive a pro-rated refund of any prepaid period under Articles 19 and 23 of EU Directive 2019/770/EU on digital services and the corresponding UK Consumer Rights Act 2015 provisions. Email [email protected] with the subject line "EU/UK material-change termination" to exercise this right.

16. Miscellaneous

Entire agreement. These Terms, together with the AUP, Privacy Policy, and any other policies referenced herein, constitute the entire agreement between you and CallPing regarding the Service.

Severability. If any provision of these Terms is held to be unenforceable, the remaining provisions will remain in full force.

No waiver. Our failure to enforce any right or provision will not constitute a waiver of that right or provision.

Assignment. You may not assign these Terms without our prior written consent.

Assignment by CallPing. We may assign these Terms in connection with a merger, acquisition, or sale of all or substantially all of our assets. For consumer Customers (natural persons acting outside trade or business): we will give at least thirty (30) days' advance written notice of any assignment by email and in-app notice. During that 30-day period you may terminate your subscription without penalty and receive a pro-rated refund of any prepaid unused period under Refund Policy §3 if you do not wish to continue with the assignee. This notice-and-exit right reflects EU Directive 93/13/EEC Annex 1(p) and UK Consumer Rights Act 2015 Schedule 2 protections against unfair unilateral assignment.

Force majeure. CallPing is not liable for any failure or delay in performance caused by circumstances beyond its reasonable control, including but not limited to acts of God, war, civil unrest, cyberattacks, telecommunications and power-network failures, actions or outages of third-party SIP trunk providers and cloud infrastructure providers (including those identified in Section 11), regulatory actions, denial-of-service events, and other force majeure events as recognized under Ukrainian law. Where a force majeure event prevents us from performing for a sustained period, we will provide reasonable notice and either party may terminate the affected subscription on written notice; refund treatment in that case follows Section 7b and the Refund Policy. This Section does not relieve you of your payment obligations for periods during which the Service was actually delivered.

Governing language. These Terms are written in English. We may publish translated versions for convenience. In the event of any conflict or inconsistency between the English version and any translated version, the English version controls.

17. Contact

The Service is operated by:

• Legal entity: ФОП Даценко А.В. (A.V. Datsenko, sole proprietor registered in Ukraine)
• Taxpayer identifier: РНОКПП 3339403456
• Country of registration: Ukraine
• Mailing address: Plytkova str. 65/106, Kharkiv, Kharkivska oblast, 61047, Ukraine
• Tax status (Ukrainian ФОП Group 3). ФОП Даценко А.В. operates under Ukrainian simplified taxation Group 3 at 5% on gross revenue per Articles 291–293 of the Tax Code of Ukraine. The taxable base is the UAH-equivalent of net Paddle payouts, converted at the National Bank of Ukraine official rate on the date of receipt under Article 292.5 of the Tax Code. ФОП Даценко А.В. is not VAT-registered; VAT, where applicable to a customer purchase, is collected and remitted by Paddle.com Inc. as merchant of record.
• Email: [email protected] for general questions about these Terms; [email protected] for data-protection matters; [email protected] for security reports.