Clerk
An authentication and user management platform
OTP-less One tap Sign in
No more passwords. Fast, simple, secure.
Updated February 2026
| Clerk | OTP-less One tap Sign in | |
|---|---|---|
| Rating | 5.0★ | 4.9★ |
| Reviews | 76 | 7 |
| Pros | 19 | 14 |
| FactScore™ | 94.3 | 43.9 |
FactScore™ Comparison
FactScore™ weighs both quality (rating) and popularity (reviews) for a fairer ranking than stars alone.
Pros & Cons
Only in Clerk — Pros
Easy integration Comprehensive solution Free tier Fast setup Flexible auth Prebuilt UI components Developer APIs Secure login flows Beautiful components Generous free tier OAuth support Admin dashboard B2B use cases Customer support Excellent documentation Next.js integration Seamless integration Social logins Web 3.0 integrationBoth tools — Pros
—Only in OTP-less One tap Sign in — Pros
No OTP required Secure authentication Simple integration Easy to use One tap sign in Seamless user experience Fast login process Cost effective Whatsapp integration Apple integration Google integration Hassle free integration Improves customer experience Multichannel authenticationOnly in Clerk — Cons
Native-app hiccupsBoth tools — Cons
—Only in OTP-less One tap Sign in — Cons
Misuse of customer data Privacy concernsDetails
| Clerk | OTP-less One tap Sign in | |
|---|---|---|
| Categories | Authentication & identity tools | Authentication & identity tools |
| Platforms | Web | Web |
| Became Popular | April 22, 2021 | January 23, 2023 |
| Website | go.clerk.com | otpless.com |
Who Should Pick Which?
Choose Clerk if...
- Easy integration
- Comprehensive solution
- Free tier
Choose OTP-less One tap Sign in if...
- No OTP required
- Secure authentication
- Simple integration
With a FactScore™ of 94.3 vs 43.9, Clerk leads in community reception. Clerk uniquely offers Easy integration and Comprehensive solution, while OTP-less One tap Sign in stands out for No OTP required and Secure authentication.
What Users Say
Clerk
We initially began building user management in-house but quickly realized that creating a secure and seamless user experience involved more complexity than anticipated. It was clear that continuing...
Clerk makes authentication effortless, with a developer-friendly API and prebuilt UI components that save time. Unlike Auth0 or Firebase Auth, Clerk provides first-class support for modern framewor...
We needed production-ready authentication without slowing the team down. Clerk let us ship securely from day one and stay focused on core product work. Setup was fast, UX is polished out of the box...
OTP-less One tap Sign in
Activate One-tap Sign in with WhatsApp, Google, and Apple! ⚡️ Provide your users with a fast, simple, and secure authentication experience, eliminating the need for OTPs and passwords. Easily add ...
We wish otpless is free forever at least with a cap of 1000 users. it would be great if you could make otpless something like google oauth wherein if the user logins to one website after QR scan he...
Safe, simple and easy to use. We are able to get customers whatsapp number, esp international ones, helping us in building organic clinetele. Team is quiet energetic, completed the intergartion sec...
Frequently Asked Questions
Which is better, Clerk or OTP-less One tap Sign in?
Based on FactScore™, Clerk leads with a score of 94.3 vs 43.9. Clerk has a higher rating of 5.0★ compared to 4.9★.
What are the pros of Clerk compared to OTP-less One tap Sign in?
Clerk uniquely offers: Easy integration, Comprehensive solution, Free tier, Fast setup, Flexible auth.
What are the pros of OTP-less One tap Sign in compared to Clerk?
OTP-less One tap Sign in uniquely offers: No OTP required, Secure authentication, Simple integration, Easy to use, One tap sign in.
Is Clerk better rated than OTP-less One tap Sign in?
Clerk is rated 5.0★ from 76 reviews. OTP-less One tap Sign in is rated 4.9★ from 7 reviews.
What is the FactScore™ of Clerk and OTP-less One tap Sign in?
FactScore™ weighs rating and review volume together. Clerk scores 94.3 and OTP-less One tap Sign in scores 43.9.
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