Growth · alternatives · 2026

24 alternatives to OTP.io

Verify users over SMS, WhatsApp and Email, Globally

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. OTP.io launched in 2024; newer entries below may have overtaken it.

1. 1
   VerifyKit▲175

   Verify your users faster and cheaper than ever

   2022 · verifykit.com · its alternatives →

2. 2
   Prelude Verify▲479

   Verify more users for less cost with our spam-free SMS API

   2024 · prelude.so · its alternatives →

3. 3
   OTP.com▲36

   OTP service for product builders. 4 channels - Single API

   Sep 2026 · otp.com · its alternatives →

4. 4
   Email OTP / 2FA by Dexatel Verify▲22

   Verify users safely with Email OTP fallback

   Oct 2025 · dexatel.com · its alternatives →

5. 5
   VerifyNow - OTP & SMS Verify▲2

   irtual phone numbers for SMS & OTP verification.

   Jun 2026 · play.google.com · its alternatives →

6. 6
   WhaOTP▲2

   Create WhatsApp OTP in 2 API calls. Free for devs.

   Jun 2026 · whaotp.site · its alternatives →

7. 7
   Alt Pass▲72

   A future without OTPs, sign up with WhatsApp

   2023 · its alternatives →

8. 8
   Everify▲69

   SMS verification made dead-simple, secure and cheap.

   2021 · everify.dev · its alternatives →

9. 9
   WOAUTH▲8

   Whatsapp Authentication Message for OTP

   2025 · its alternatives →

10. 10
    OTP-less One tap Sign in▲37

    No more passwords. Fast, simple, secure.

    2023 · otpless.com · its alternatives →

11. 11
    WhatsApp OTP Verification▲4

    Send OTPs via WhatsApp with one blazing fast, low-cost API.

    Nov 2025 · rapidapi.com · its alternatives →

12. 12
    WhatsAuth▲72

    Frictionless WhatsApp login & OTP for NextGen security

    2023 · whatsauth.com · its alternatives →

13. 13
    WaCloud▲9

    WhatsApp Solution for OTP, Reminders and Promotion

    Apr 2026 · wacloud.app · its alternatives →

14. 14
    Sendmator▲4

    Your Complete User Communication Platform

    Jul 2026 · sendmator.com · its alternatives →

15. 15
    OtpNinja▲80

    Setup OTP API easily

    2021 · otpninja.com · its alternatives →

16. 16
    Authentica▲9

    APIs to verify users via Nafath, OTP, and Biometrics.

    2025 · authentica.sa · its alternatives →

17. 17
    Base Verify▲68

    Making user data verification a breeze

    2023 · baseverify.com · its alternatives →

18. 18
    Phone-verif.com public opening▲8

    Reverse-OTP phone verification over WhatsApp

    Jul 2026 · phone-verif.com · its alternatives →

19. 19
    ApexVerify▲8

    All-in-one online data verification tools

    Nov 2025 · apexverify.com · its alternatives →

20. 20
    Mailerio▲30

    Keep your lists clean with email validation tool

    2025 · mailerio.com · its alternatives →

21. 21
    Code Verify▲6

    Browser extension to verify the authenticity of WhatsApp Web

    2022 · chromewebstore.google.com · its alternatives →

22. 22
    SMS OTPs and Notifications in Adalo▲5

    Secure your apps in Adalo with SMS verification and OTPs

    2022 · integrations.clicksend.com · its alternatives →

23. 23
    Mtalkz ▲2

    Fast OTP Delivery Across SMS, WhatsApp & Voice

    Jun 2026 · mtalkz.com · its alternatives →

24. 24
    Email Verification API▲4

    Real-time and convenient email validation tool

    2021 · emailverification.whoisxmlapi.com · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →