Zengine Energy Compass vs TrueZone
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Zengine Energy Compass
Understand your body's stress and energy responses by tracking your autonomous nervous system. Identify habits that drain or boost your vitality to improve sleep and overall well-being. Requires a compatible heart rate sensor for detailed analysis.
- Autonomous nervous system analysis
- Stress and energy level tracking
- Habit impact identification
- Sleep improvement insights
- Requires Polar heart rate sensor
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The app allows you to take a deep look into your own autonomous nervous system. By doing measurements for several hours or days you learn which activities and habits cause stress and which activities energize you. This helps you to optimize your energy levels, improve your sleep and lead a better and happier life. The measurement requires a Polar H10, H9 or H7 bluetooth heart rate sensor.
TrueZone
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The future of fitness testing. TrueZone offers quick-and-easy, gold-standard fitness testing for coaches or individuals, requiring only a heart rate monitor.
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Verdict
The clearest difference is in-app purchases: Zengine Energy Compass at none against TrueZone's 2. TrueZone's advantage is update cadence (every 3 weeks vs every 9 months). On price, ads, device support and iOS requirement 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
Both are free to download. TrueZone sells 2 one-off in-app purchases. Zengine Energy Compass asks for nothing beyond the download.
Zengine Energy Compass ships an update every 9 months, TrueZone every 3 weeks. The most recent releases landed on October 16, 2026 and October 6, 2026 respectively.
| Parameter | Zengine Energy Compass | TrueZone |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 9 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 14.0 | 14.0 |
| Further details — not scored | ||
| Size | 31 MB | 72 MB |
| Age rating | 4+ | 4+ |
| Developer | Manfred Kuegel | Driftline ehf. |
In-app purchases
Zengine Energy Compass
No in-app purchases
TrueZone
- Heart rate analysis$5.99
- 10 fitness tests$49.99
