Terms of service

Last updated: 12 November 2026

1. The service

Flip OTP provides a phone verification service in which end users send a short code from their own WhatsApp account to a business number operated by Flip OTP. We return a signed proof token that your application can validate.

2. Accounts and plans

You are responsible for the activity of every user you invite to your account. Plan limits are enforced before a verification code is issued. When a limit is reached, new verifications are blocked until you upgrade. Fees are billed in advance through our payment processor.

3. Acceptable use

• Do not use Flip OTP for unlawful, harassing or deceptive messages.
• Do not attempt to verify phone numbers you do not control outside of a consenting flow.
• Do not resell or white-label the service except under a SaaS plan that permits it.
• Do not circumvent rate limits, quotas or domain allowlists.

4. Availability

The service is provided as-is. WhatsApp delivery depends on Meta's platform and your users' devices. Do not use Flip OTP as the only factor for emergency, financial or medical authentication where a missed message could cause harm.

5. Data

We process phone numbers, verification status and coarse request metadata to operate the service. See our privacy policy for retention and deletion.

6. Termination

You may close your account at any time. We may suspend accounts that violate these terms or put the platform at risk. Soft-deleted records may be retained for a limited period for recovery and audit purposes.

7. Contact

Questions: [email protected].