One Plank: Daily Plank Habit
1-minute core workout timer
Only for iPhone
Free
iPhone
One plank a day, starting at one minute. Your goal grows 5 seconds at a time, and you can chase a personal best.
A simple plank timer for building a daily core habit.
Tap Start, then just listen. Sounds and short voice cues guide you, so you don't have to watch the screen.
Made to keep you going
- Tell us how it felt: Hard, Just right or Easy. When it keeps feeling easy, we suggest adding 5 seconds
- Keep going past your goal and try for a personal best
- Tough day? Do just 10 seconds to keep your streak (up to twice a week)
- Celebrate milestones and unlock new app icons, like a gold crown at 30 days
Features
- Goal from 10 to 300 seconds, in 5-second steps
- Form tips during your plank, read aloud
- Streak, personal best and a 4-week history
- Widgets, Lock Screen widgets and a Control Center button
- Save planks to Health as core training (optional)
- Start with Siri, Shortcuts or the Action button
- Daily reminder at the time you choose
No account needed. Your records stay on your iPhone. No ads during your plank.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Now in English. Milestone celebrations with new app icons, share images, monthly summary, more widgets, Health and Siri support, and new sounds.
The developer, AKITO YAMAZAKI, 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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
- Diagnostics
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- AKITO YAMAZAKI
- Size
- 10 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
9+
- 9+
- Contains
Advertising
Health or Wellness Topics
- Copyright
- © 2026 AKITO YAMAZAKI