Hey Product Hunt! It's Ben and I'm the solo maker behind Simple OTP - the world's simplest way to add passwordless authentication for your website. I previously launched this product here on PH as a subscription-based tool, but seeing as the market is quite crowded with authentication apps that ask for a monthly fee, I decided to add a twist to the original product: 1. Simple OTP is now a one-time payment instead of a subscription. Special launch discount available for PH readers as well! (see offer at the top) 2. Backend, frontend source code and setup documentation is included. The backend is Go + PostgreSQL + Amazon SES, and the admin dashboard frontend is Vue + plain JavaScript + Tailwind CSS. Should be easy to understand. 3. There are no more caps on the number of MAUs - as much as your hardware can handle! Happy to launch again and let me know what you think. Cheers.

Good job Ben, Simple OTP 2.0 looks quite promising. Best of luck with the launch ❤️🦄

Congratulations on the launch! This sounds incredibly convenient. Having magic sign-in link authentication integrated seamlessly into websites will make logging in so much easier and more secure. Thank you for providing such a useful tool!

Looks great!!! I’d take this for a spin. Congrats on your launch 🚀

Happy to launch again and let me know what you think. Cheers.

Congrats on your launch 🚀

Interesting 😎

Congrats on your launch 🚀