Wow!
Works great! I like the information this app gives me from my health data!
Kudos man
Great companion, love the cute design
Free
In-App Purchases
About
This app visualizes your stress levels using heart rate variability data from your Apple Watch. It features a charming character that reflects your current mood and offers insights into how your habits affect your well-being. Explore trends, practice coherence breathing, and receive personalized alerts.
✓HRV and stress visualization
✓Character mood indicator
✓Coherence breathing guide
✓Habit tracking and insights
✓Apple Watch app and complications
✓Home Screen widgets
✓Beat-to-beat detail analysis
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+2
What's New in TensionRadar
1.0.1
October 6, 2026
Improves Character Pack purchasing with clearer loading, error messages, and retry. Clarifies monitoring status and fixes the radar ring at the maximum score.
More1
Subscriptions & In-App Purchases
$0.99
Character Pack
Bloop, Mochi and Sprout as characters and app icons.
User reviews
Developer apps
FAQ
What is TensionRadar?
TensionRadar is a wellness tool that uses your Apple Watch's heart rate variability (HRV) data to provide a visual representation of your stress levels. It features a character that changes based on your stress score and offers insights into your habits.
Does TensionRadar have ads?
No, TensionRadar does not contain advertisements. The app is free to download and use, with optional cosmetic character packs available for purchase.
What devices is TensionRadar compatible with?
TensionRadar requires an iPhone with iOS 18 or later and an Apple Watch that records heart rate variability. It also supports watch complications and iPhone Lock Screen widgets.
How does TensionRadar measure stress?
TensionRadar analyzes heart rate variability (HRV), which is the variation between heartbeats. It learns your personal HRV baseline and scores new readings against it, combined with your heart rate relative to resting, to generate a stress score.
Can I practice breathing exercises with TensionRadar?
Yes, TensionRadar includes a Coherence Breathing feature that guides you to breathe at your resonance frequency with a paced circle. The Apple Watch app can measure your heart rate during these sessions and update your coherence score in real time.
How often is my data updated in TensionRadar?
TensionRadar updates as new Apple Watch measurements become available. Apple controls when HRV is measured and when apps refresh, so readings may be delayed and are not continuous. You can open the app to check the latest data.
What is the cost of TensionRadar?
TensionRadar is free to download and use. There is an optional Character Pack available for $0.99, which unlocks additional characters like Bloop the blob, Mochi the cat, and Sprout the plant.
Does TensionRadar require an account?
No, TensionRadar does not require an account. All data is processed and stored locally on your device, ensuring your privacy. There are no servers or analytics used by the app.