Brainlift

Brainlift is a minimalist "Neuro Gym" app. Instead of jumping between multiple apps, get all your favorites like Queens, Dots, Zip, Sudoku, and Trivia and many more in one offline-first sanctuary. Reach your daily goal, earn XP, and unlock a brand-new game every single day. No subscriptions, no noise, just a daily ritual to keep your mind sharp. 100% playable without wifi.

A browser-based Sudoku using an open-source puzzle generator for perfect logic and one valid solution per game. Adjustable levels, smart hints, and error tracking. Ad-free and playable instantly.