4-7-8 Breathing + Theta Waves
Emanuel Potdevin Health & Fitness iPhoneiPadiPod touch
4-7-8 Breathing + Theta Waves is a free Health & Fitness app for iPhone and iPad by Emanuel Potdevin. Requires iOS 17.0. Updated October 24, 2026.
- Price
- Free
- on the App Store
- Size
- 3 MB
- Age 4+
- Updated
- Oct 24
- 2026 · v1.1
Screenshots
About 4-7-8 Breathing + Theta Waves
Slow down in 80 seconds. 4-7-8 is a simple breathing rhythm: breathe in for 4 seconds, hold for 7, breathe out for 8. This app guides you through it with a calm, glowing line. Just follow the dot. FOLLOW THE LINE The line rises as you breathe in, stays level while you hold and falls as you breathe out. A large countdown, soft bells and gentle vibrations tell you when to switch, so you can even close your eyes. DEEPLY RELAXING BOOST Add a soft binaural beat in the theta range (5 Hz) underneath your breathing. Put on headphones, set the volume you like, or turn it off. BUILD THE HABIT • Choose 3, 4 or 5 sessions a day • Commit to 30, 60 or 90 days • Set a time for each session and get a gentle reminder • Every finished session gets a check mark YOUR PROGRESS AT A GLANCE Add the widget to your Home Screen or Lock Screen to see how many days are left and which of today's sessions are done. SIMPLE AND PRIVATE • One session is 4 rounds, about 80 seconds • No account, no ads, no tracking • Everything stays on your iPhone Feeling a little lightheaded is common when you start. If it happens, stop and breathe normally. This app is a relaxation exercise and is not a medical treatment.
What’s new
Version 1.1 · Updated October 24, 2026
• New: a Session reminders switch in onboarding and Settings. Turn it on to get a gentle notification at each session time. • Reminders now also appear while the app is open. • Small improvements and fixes.
App privacy
The developer, Emanuel Potdevin, reported these privacy practices to Apple.
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Identifiers: Device ID
- Usage Data: Product Interaction
- Diagnostics: Crash Data, Other Diagnostic Data
Used for: Developer’s Advertising or Marketing, Analytics
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