BreatheRhythm was built so you can practise a 4-7-8 breathing timer, a 4-2-4 breathing timer, a box breathing timer (4-4-4-4) or a coherent breathing timer (5-5) anywhere — on a train, between meetings or before sleep. It’s free, ad-free and works offline ⏱️❤️. Just hit start and follow the calm animation.