Dev tools · alternatives · 2026
24 alternatives to OTP.com
OTP service for product builders. 4 channels - Single API
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
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Send OTPs via WhatsApp with one blazing fast, low-cost API.
Nov 2025 · rapidapi.com · its alternatives →
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- 4BM
Hi HN! I’m proud to share that we have built a real 3rd party iMessage client for Android. We did it by reverse engineering the iMessage protocol and encryption system. It's available to download today (no waitlist): https://play.google.com/store/apps/details?id=com.beeper.ima and there's a technical writeup here: https://blog.beeper.com/p/how-beeper-mini-works. Unlike every other attempt to build an iMessage app for Android (including our first gen app), Beeper Mini does not use a Mac server relay in the cloud. The app connects directly to Apple…
2023 · beeper.com · its alternatives →
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Verify users safely with Email OTP fallback
Oct 2025 · dexatel.com · its alternatives →
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Reverse-OTP phone verification over WhatsApp
Jul 2026 · phone-verif.com · its alternatives →
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APIs to verify users via Nafath, OTP, and Biometrics.
Oct 2025 · authentica.sa · its alternatives →
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Secure apps & services with multichannel user authentication
2021 · its alternatives →
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The stronger SIM-based alternative to passwords, SMS and 2FA
2021 · its alternatives →
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- 21OS
2021 · github.com · its alternatives →
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- 23OO
2021 · obsidianapp.io · its alternatives →
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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 →