Vonage (formerly Nexmo) offers verification APIs for enterprise teams. DoneOTP targets developers who want a simple OTP-as-a-Service with no platform fee and a faster integration path.
| DoneOTP | Vonage | |
|---|---|---|
| Platform fee | None | Enterprise contracts |
| Integration complexity | 2 endpoints + widget | Multi-product suite |
| Drop-in widget | Yes | Limited |
| Pay per success | Yes | Contract-based |
| SMS pumping protection | Built-in | Limited |
| Time to first verification | Afternoon | Days to weeks |
When DoneOTP wins
- Startups and product teams shipping fast without telecom contracts
- Usage-based pricing with no minimum spend
- Built-in fraud controls for SMS pumping and brute-force abuse
- Clear docs — two REST endpoints or one script tag