Stress Tracker HRV vs Sun Ring
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Stress Tracker HRV
Monitor your body's stress levels, sleep quality, and recovery using Heart Rate Variability (HRV) data from your Apple Watch. Gain insights into your mental and physical well-being to make informed decisions about rest and activity.
- Real-time stress tracking via HRV
- Daily and weekly stress trend analysis
- Recovery Index for bounce-back assessment
- Sleep score and optimization insights
- On-device data privacy
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Stress tracking with HRV, sleep insights & recovery in one simple app. Feel tired, anxious, or burned out without knowing why? This app gives you answers, not guesses. Stress Tracker uses Heart Rate Variability (HRV) to show your real stress level, sleep quality, and how well you’re recovering — all from your Apple Watch. Track your daily stress instantly. See how it changes across the day or week. Know when to rest, recover, or push forward with data-backed clarity. Features: • Real‑time stress tracking based on HRV • Daily & weekly stress trends • Recovery Index to see how you bounce back • Sleep score and insights to optimize rest • Fully private – nothing leaves your device Get clarity over your mental and physical health. Stop guessing. Start tracking.
Sun Ring
This app encourages daily sun exposure by using a familiar ring-closing mechanic. Users can customize their daily goals and track progress with watch face complications and notifications. Review historical data to maintain streaks and stay motivated to enjoy the outdoors.
- Gamified daily sun exposure tracking
- Customizable daily sun exposure goals
- Adjustable 'direct sunlight' lux value
- Watch face widgets and complications
- Goal completion notifications
- Daily progress history and streak tracking
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Sun Ring gamifies daily sun exposure in a format Apple Watch owners will find very familiar: closing a ring. Easily glance at your progress for the day and motivate yourself to go outside to reach your goal. CUSTOMIZABLE THRESHOLDS Set how many minutes you'd like to be in the sun each day, and motivate yourself to enjoy the outdoors. Change what Sun Ring considers as "direct sunlight" by adjusting the minimum lux value your Apple Watch counts towards your goal. WIDGETS/COMPLICATIONS Easily view and keep track of your daily progress right from your watch face. Watch your Sun Ring close throughout the day and inch closer toward your goal. NOTIFICATIONS Never miss out on reaching your goal by turning on Goal Completion notifications. Your Apple Watch will send you a celebratory notification when you have reached or surpassed your daily sun exposure goal. HISTORY Remain motivated by looking at the progress you've made over the past few days and keep your streak alive! Easily see which days you fell short or exceeded your goal and closed your ring. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Verdict
The clearest difference is price: Sun Ring at Free against Stress Tracker HRV's $7.99. Stress Tracker HRV's advantage is iOS requirement (13.0 vs 17.0). On rating, ratings volume, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Sun Ring is free to download; Stress Tracker HRV costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Stress Tracker HRV against 5.0 for Sun Ring. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
| Parameter | Stress Tracker HRV | Sun Ring |
|---|---|---|
| Price | $7.99 | Free — better |
| Rating | 5.0 (2 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 5 weeks | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPod, Apple Watch — better | iPhone, Apple Watch |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 5 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Alvaro Garcia Pizarro | Aaron Taylor |
Customer experience
Stress Tracker HRV
Sun Ring
In-app purchases
Stress Tracker HRV
No in-app purchases
Sun Ring
No in-app purchases
Questions
Is Stress Tracker HRV free?
Is Sun Ring free?
Which has better reviews, Stress Tracker HRV or Sun Ring?
Do Stress Tracker HRV or Sun Ring have ads?
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