Speedown - Heart Rate Alert

Apple Watch Haptic Run Coach

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

Speedown monitors your heart rate in real time via Apple Watch. The moment you exceed your target zone, a gentle wrist tap reminds you to ease up — no glancing at your watch, no fumbling with buttons, just pure focus on every stride. WHY CONTROL YOUR HEART RATE? Running isn't about going as fast as possible. Staying in the right heart rate zone builds aerobic fitness more effectively, so you run easier and healthier. HEART RATE ZONE GUARDIAN Choose from preset zones — warm-up, fat burn, aerobic, and more — or fully customize your own. When your heart rate drifts out of range, Apple Watch vibrates instantly, keeping you in a safe and efficient training intensity. Your heart matters more than your pace. BUILT-IN CADENCE METRONOME An adjustable metronome provides rhythmic cues to help you maintain a steady cadence. A higher cadence can reduce over-striding and lower impact on your knees and Achilles tendons. YOUR DATA STAYS YOURS All workout data is saved to your personal iCloud through Apple Health. We never collect or upload any personal information. Even if you uninstall Speedown, your complete workout history remains in Apple Fitness. Speedown requires an Apple Watch to use. Questions or suggestions? Feel free to reach out via the in-app feedback.

Ratings & Reviews

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- Added segment pace chart - Route-only map mode in workout detail - Fixed false health permission alert on workout start

Version 1.3

The developer, 志腾 侯, 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:

    • Usage Data
    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • 志腾 侯
Size
  • 14.9 MB
Category
  • Sports
Compatibility
Requires iOS 18.0 or later.
  • iPhone
    Requires iOS 18.0 or later.
  • Mac
    Requires macOS 15.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 2.0 or later.
  • Apple Watch
    Requires watchOS 10.6 or later.
Languages
English and 8 more
  • English, French, German, Japanese, Korean, Russian, Simplified Chinese, Spanish, Traditional Chinese
Age Rating
4+
In-App Purchases
Yes
Copyright
  • © 2026 Zhiteng Hou
  • Developer Website
  • Privacy Policy

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