Resonance

Resonance is an iPhone app for guided breathing exercises. Sessions run from one to ten minutes and are organized by the moment you are in: calming down quickly, getting focused, waking up with more energy, or winding down before bed. Visual pacing is paired with audio cues and optional haptics that mark each inhale, hold and exhale.

The app includes named techniques such as coherence breathing, box breathing, 4-7-8 breathing, an energizing breath and a focus breath, plus custom patterns where you set your own inhale, hold and exhale timing. Streaks, achievements and 12 mastery levels from Beginner to Zen Master encourage a regular habit, and session history with daily stats tracks progress. Breathing cues, haptics and ambient sounds can be adjusted, and there is a dark theme.

Resonance needs no account and works offline. Practice data such as sessions, streaks and custom patterns stays on the device, and the developer says anonymized analytics and crash reports are used to improve the app. It is free to download with optional in-app purchases and a 7-day free trial, and it is presented as a general wellness tool rather than a medical device.