A relaxing puzzle game where you strategically place blocks to make all numbers on the board equal zero. Enjoy a no-pressure experience with calming audio and no in-app purchases or ads.




10+ similar games compared and reviewed
quadline is great, but it's not the only option. Explore 10+ similar apps and games for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.




A relaxing puzzle game where you strategically place blocks to make all numbers on the board equal zero. Enjoy a no-pressure experience with calming audio and no in-app purchases or ads.





This minimalist puzzle game challenges players to rotate and blend cards using XOR logic to solve over 200 unique puzzles. It features a relaxing soundtrack, inclusive color schemes, and a level editor to create and share custom challenges.






Immerse yourself in a tranquil puzzle experience with evolving geometric forms and a serene soundtrack. Synchronize elements in form and time to achieve deep relaxation and contemplation. This app offers a score-free, ad-free, and data-free environment for peaceful engagement.