Sinch Verification API

7.0easy start · #7 of 77
in Transactional SMS Software

Free to practise onnot on record
Free trialyes
Well documentedyes
Runs where you workyes

Runs on Android, api, iOS, Web.

Sinch Verification API is ranked #7 of 77 in transactional SMS software on The Geeks Club. It runs on Android, API, iOS, Web. A free trial is offered.

Sinch Verification API plans and pricing

All plans

Pay-as-you-go verification Not published Per request; SMS pricing varies by country and operator, and flash calls have a fixed price per attempt. Current pricing list available in the Sinch Build dashboard developers.sinch.com · 7 Oct 2026

Compared on transactional SMS software

Pay-as-you-go: Yes
SMS API: Yes
Delivery status: Yes
Webhooks: Yes

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The record

Purpose: The API provides scalable multi-factor authentication for app security and user verification.
Verification methods: Verification methods include SMS, voice calls, flash calls, and data verification.
Use cases: Sinch describes OTPs, password-free phone number verification, and one-factor authentication for sign-up, login, and password resets.
Global reach: The service supports verification on any device or platform, in multiple languages, with fallback options for delivery, conversion, and price.
Network: Sinch says its global network has more than 600 direct tier-1 operator connections.
Integrations: The product page names Okta and Auth0 as customer identity and access management integrations.
Additional integrations: The developer documentation lists integration guides for Auth0, ForgeRock, Okta, and SAP.
Mobile SDKs: Sinch provides native SDKs for building verification into Android and iOS apps.
Security: Sinch says it is GDPR compliant, MEF Code of Conduct approved, and ISO 27001 certified.
Trust documentation: Sinch's Trust Center lists ISO 27001:2022, SOC 2 Type II, PCI, GDPR, and HIPAA badges and says certifications may apply to specific products.
Trial: Sinch Build offers free trial credit for testing Verification, including OTP, silent authentication, and number lookup.
Pricing: The pricing page describes pay-as-you-go SMS pricing but does not state a Verification API price.
Support: The product page provides regional phone support hours for the Americas, EMEA, Singapore, and Melbourne.
Integration requirement: The Auth0 integration guide requires a Sinch account with enough credits and the user's phone number in metadata under phone_number.

Where it ranks on The Geeks Club

Best Transactional SMS Software in 2026#7 of 77

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Sources

sinch.com/verification-api/· checked 7 Oct 2026
developers.sinch.com/docs/verification· checked 7 Oct 2026
developers.sinch.com/docs/verification/integrations/auth0· checked 7 Oct 2026
trust.sinch.com· checked 7 Oct 2026
sinch.com/pricing/· checked 7 Oct 2026
sinch.com/about-us/· checked 7 Oct 2026
developers.sinch.com/docs/verification/introduction· checked 7 Oct 2026
developers.sinch.com/docs/verification/api-reference/authent· checked 7 Oct 2026
sinch.com/verification-api/sms-verification/· checked 7 Oct 2026
sinch.com/verification-api/data-verification-sile· checked 7 Oct 2026