ond
Observe your mind and body
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
ond is a conditioning app that records the rhythms of your mind and body as “waves.”
Observe your inner waves without judging them. ond helps you capture your rhythm through two connected waves: your mind and your body, so you can begin to notice the patterns that are uniquely yours.
— Mind Wave
Check in each day and record your condition on a 0–10 scale. With neutral 5.0 as the center, your ups and downs become a smooth, beautiful wave chart over time.
・ Quick recording with an intuitive drag slider
・ Wave charts for 7 days, 30 days, 90 days, and more
・ Automatic ABOVE and BELOW summaries and comparison
・ Tags and journal notes to keep context
— Body
Training logs, weight trends, steps, and sleep. By seeing your mind and body together, you can look back on your rhythm with more depth.
・ Detailed logs for exercises, sets, and weight
・ Weight trend charts and averages
・ Step comparisons and goal display
・ Sleep records and Health app sync
・ Weekly volume and top set calculations
— ond plus
Go deeper into your wave observation with ond plus, a premium plan for ¥420/month including tax.
・ View your full history beyond the most recent 3 months
・ Import past data from the Health app
・ Review your week as a weekly summary
・ See today’s condition and streak from Home Screen widgets
Live with your waves. Download for free and begin with today’s wave.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://ond-app.me/privacy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
・You can start recording right away, without creating an account. Create one later and everything you have recorded comes with you.
・Long-press the home screen icon to jump straight into logging your condition, a workout, steps, or your weight.
・Fixed the home screen widget drawing the wave out of line with its own scale. Days you have not recorded now read as unrecorded.
・Apple Health now imports exactly what your settings say. Anything switched off stays out, and turning it back on brings that data in then.
・Signing out now clears the copy of your records left on that device. The records themselves stay, so signing back in brings them back.
・Settings rows on your profile page now respond anywhere along the row.
・Workout session name suggestions now appear before you tap the field, so naming a session is quicker.
・Fixed the Today panel in Steps, where distance, energy, and goal numbers could wrap vertically and become unreadable.
・Strengthened the protection around everything you have recorded.
The developer, Yuta Totsuka, 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 Linked to You
The following data may be collected and linked to your identity:
- Health & Fitness
- Location
- Contact Info
- User Content
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
- Yuta Totsuka
- Size
- 11.9 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - iPad
Requires iPadOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 4 more
- English, Italian, Japanese, Korean, Traditional Chinese
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- In-App Purchases
Yes
- ond plus $2.99
- Copyright
- © 2026 Totz Yu
