Sinch Verification API vs ValueFirst RCS Business Messaging
Sinch Verification API
sinch.comValueFirst RCS Business Messaging
vfirst.comSide by side
| Figure | Sinch Verification API | ValueFirst RCS Business Messaging |
|---|---|---|
| Price from | — | — |
| Free plan | — | — |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | Yes |
| Plans published | 1 | 0 |
| Spec score · Phone Verification Software | 8.2 (#2) | 6.9 (#8) |
| Spec score · Transactional SMS Software | 8.2 (#27) | 6.8 (#54) |
| Founded | 2008 | 2003 |
| Headquarters | Stockholm, Sweden | Gurugram, Haryana, India |
| Integrations | The product page names Okta and Auth0 as customer identity and access management integrations. | ValueFirst lists CleverTap as an integration for sending RCS Business Messaging, SMS, and WhatsApp from CleverTap. |
| Purpose | The API provides scalable multi-factor authentication for app security and user verification. | RCS Business Messaging lets businesses engage customers through branded, rich, conversational messages. |
| Security | Sinch says it is GDPR compliant, MEF Code of Conduct approved, and ISO 27001 certified. | ValueFirst says messages between users and RCS agents are encrypted in transit to Google servers and from Google servers to users’ devices; Google scans messages for harmful content. |
| Use cases | Sinch describes OTPs, password-free phone number verification, and one-factor authentication for sign-up, login, and password resets. | RCS agents can support objectives ranging from delivery notifications to arranging a flight through rich cards, media, and suggestions. |
Plans
In their own words
Sinch Verification API
Sinch Verification API provides multi-factor authentication and phone-number verification for app sign-up, login, and password resets. Developers can use one-time passwords, password-free verification, or other account checks through backend REST APIs and native Android and iOS SDKs. Verification methods include SMS, voice calls, flash calls, and data verification. Sinch describes multilingual service across devices and platforms, with fallback options for delivery, conversion, and price, supported by more than 600 direct tier-1 operator connections. Its Dashboard shows verification results and delivery and conversion metrics in real time. Named identity integrations include Okta and Auth0, while developer guides also cover ForgeRock and SAP. Data Verification requires mobile data to be enabled, and Sinch advises contacting an account manager to use it. For SDK requests from untrusted mobile devices, Sinch recommends Public Authentication and says verification callbacks should validate requests to help prevent fraud. The service has free access and trial credit through Sinch Build. Pay-as-you-go verification is billed per request; SMS pricing varies by country and operator, while flash calls have a fixed price per attempt.
ValueFirst RCS Business Messaging
ValueFirst RCS Business Messaging has no write-up on Specifiction yet; its figures are above.