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Sinch Verification API

Paid#9 of 25 in Multi-Factor Authentication APIsPhone Verification Software Transactional SMS Software

Sinch Verification API: A focused phone-verification API with mobile SDKs and multiple delivery methods. Ranked #9 of 25 in Multi-Factor Authentication APIs by our editors (8.1/10); pricing: Paid; best for phone-based verification with mobile SDKs.

8.1/10Editor score

Visit Sinch

Sinch Verification API8.1 Visit Sinch

At a glance

Editor score
8.1 / 10
Pricing
Paid
Best for
Phone-based verification with mobile SDKs
Founded
2008 · Stockholm, Sweden
Facts checked
20 Sep 2026

Where it wins
- Supports SMS, flash-call, phone-call, and data verification
- Native iOS and Android SDKs plus REST API access
- Callbacks, status retrieval, and delivery metrics support monitoring
Where it doesn't
- Usage costs vary by destination country and operator
- Focused on phone-number verification rather than broader MFA methods
- Native mobile SDK coverage is limited to iOS and Android

Our verdict on Sinch Verification API

Sinch Verification API helps developers verify users during sign-up, login, and account-recovery flows. It is designed for teams that want phone-number verification across web, iOS, Android, and API-based applications. The service supports SMS codes, flash calls, phone calls, and data-based verification, giving teams several ways to complete a verification request. REST APIs, native iOS and Android SDKs, and verification callbacks support both web and mobile implementation patterns.

Pricing follows a pay-as-you-go model, with charges calculated per verification request. According to Sinch’s published pricing notes, SMS rates vary by destination country and operator, and the current pricing list is available through the Build dashboard. This structure fits products with usage-based verification demand, but budgeting requires attention to destination mix and operator rates rather than a single standard fee. Charge detail records can help teams review verification-related costs.

The product’s strongest fit is a phone-centered authentication flow where delivery visibility matters. Developers can retrieve verification status and results, receive request and result callbacks, and monitor delivery and conversion metrics in the Sinch Dashboard. Those capabilities provide operational signals around verification performance without requiring a broader identity platform. Teams looking for SMS, voice, flash-call, or data verification with mobile SDK support should consider it; organizations seeking a wider range of MFA methods or broader authentication coverage should look for a more expansive alternative.

Your product? Our editors can test Sinch Verification API in depth and publish a review, labelled as paid · from $149/mo →

Sinch Verification API pricing

Plans PaidPaid No free plan — trial or paid only. Prices checked 20 Sep 2026.

See plans on sinch.com

Sinch Verification API fact sheet

Free plan	Not verified
Paid from	Not verified
Passkey support	Not verified
Push verification	Not verified
TOTP support	Not verified
SMS OTP	Not verified
Email OTP	Not verified
SDK languages	Not verified
Webhook support	Not verified
Deployment	Cloud, Mobile
Platforms	Web, iOS, Android
Support	Docs, Tickets, Email, Phone
Built for	Small business, Mid-market, Enterprise (editorial estimate)
Pricing	Paid
Website	sinch.com
Facts checked	20 Sep 2026

Alternatives to Sinch Verification API

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Also Ranked In

Sinch Verification API is ranked in 3 of our directories.

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Featured on iTechGuides

Sinch Verification API is listed in our Multi-Factor Authentication APIs directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update