Meditation Timer Meiso
Sleep, Anxiety, Stress & HRV
Free · Designed for iPhone. Not verified for macOS.
Scientifically measure meditation benefits with HRV analysis. Apple Watch & BLE sensor support. 5 languages. Simple design for lasting habits.
Start your meditation journey with the world's simplest meditation timer.
Clean, minimal design with no ads — just meditate.
NEW IN V3: HRV HEART RATE VARIABILITY ANALYSIS
- Measure HRV in real-time during meditation
- SDNN, RMSSD, and LF/HF ratio for autonomic balance
- Compatible with Apple Watch and BLE heart rate sensors (Polar H10)
- Visualize changes before and after meditation
- Experience meditation benefits backed by scientific data
TWO MEDITATION MODES
- Countdown: Set 1-60 minutes for structured sessions
- Count-up: Meditate freely without time limits
MEDITATION TRACKING
- GitHub-style contribution graph for 12 months of history
- Weekly bar charts for meditation time
- Streak counter to keep you motivated
ACHIEVEMENT SYSTEM
- Earn science-backed achievement badges
- Gamification to support your meditation habit
APPLE WATCH
- Use the meditation timer standalone on Apple Watch
- Measure HRV with Apple Watch heart rate sensor
- Auto-sync meditation history with iPhone
WIDGETS & LIVE ACTIVITIES
- Home screen widgets to view meditation stats
- Live Activities to track elapsed time during sessions
HEALTHKIT INTEGRATION
- Automatically save sessions as Mindful Minutes
CUSTOMIZATION
- Sound & vibration toggle
- Dark/Light mode
MULTILINGUAL
- Japanese, English, Chinese, Korean, and Spanish
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
v3.3.3 Update
- Round-end notifications now fire even when the app is in the background or the screen is locked
- Fixed Live Activity and Dynamic Island timers so elapsed time updates correctly
- Optimized ASO metadata for better discoverability
The developer, Masayuki Yamaji, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Health & Fitness
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Masayuki Yamaji
- Size
- 4.7 MB
- Category
- Medical
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later. - Apple Watch
Requires watchOS 10.0 or later.
- iPhone
- Languages
English and 4 more
- English, Japanese, Korean, Simplified Chinese, Spanish
- Age Rating
4+
- 4+
- Copyright
- © Copyright 2017 Y.Masayuki All Rights Reserved