Attention Bubble
Health & Fitness
Free · Designed for iPhone
马拉松；跑步；心率；marathon; heart-rate
This app estimates critical speed—your baseline running capacity—using time and distance data from at least three sessions. It helps runners train smarter, not harder.
Ratings & Reviews
This app hasn’t received enough ratings or reviews to display an overview.
An introductory splash video has been included to provide users with a clearer understanding of the app’s purpose and features.
The developer, 润浩 吴, 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
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 润浩 吴
- Size
- 12.4 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 15.6 or later.
- iPhone
Requires iOS 15.6 or later. - iPod touch
Requires iOS 15.6 or later. - Mac
Requires macOS 12.5 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later. - Apple Watch
Requires watchOS 9.6 or later.
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2025 Yuanyi Inc.