Our own work
The widget, the puzzles and every picture in them (shapes, scenes and the picture grid) are drawn by our own code, fresh for each check.
FitMyKB Verify
FitMyKB Verify credits
The open-source software and fonts Verify is built with, our own puzzles and pictures, and trademark notices.
Open-source software
The servers run on Flask (BSD) and draw the puzzles with Pillow (HPND). Mobile numbers are checked with phonenumbers, the Python port of Google's libphonenumber (Apache 2.0). The mobile SDKs use only the system WebView.
Fonts and icons
Instrument Sans and IBM Plex Mono are used under the SIL Open Font License 1.1. Line icons are based on Feather (MIT) and Lucide (ISC).
Trademarks
hCaptcha, reCAPTCHA, Cloudflare Turnstile and other names are trademarks of their owners, used only to describe compatibility or to compare. FitMyKB isn't connected with them.