Power Sensor vs Crazy Meter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Power Sensor
Sync your smart band data to your iPhone for real-time access to your daily sports statistics. Track your sleep patterns to improve rest quality and share your progress with friends.
- Syncs smart band data to iPhone
- Real-time sport stats dashboard
- Sleep time tracking
- Sleep quality improvement
- Share and compete with friends
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"Power Sensor" APP is an application which can syncs Smart band data to iPhone and network. This gives user real-time access to sport stats on the Smart band dashboard throughout the day. "Power Sensor" APP tracks user sleep time, help to improve your sleep quality. Share and Compete with friends.
Crazy Meter
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Have you ever wondered if you had a mental disorder? Do friends call you crazy? It’s time to stop wondering. Take these simple tests and compare with other users. If you’re worried about friends or a lover, test them also. Besides the “Dark Triad” of personalities, Machiavellianism, narcissism, and psychopathy, the app also tests for bipolar and obsessive-compulsive disorders. Have fun but answer truthfully.
Screenshots
Verdict
Power Sensor and Crazy Meter are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on June 8, 2026 and May 17, 2026 respectively.
| Parameter | Power Sensor | Crazy Meter |
|---|---|---|
| Price | Free | Free |
| Rating | 2.6 (14 ratings) — better | — |
| Positive reviews | 11.7% of reviews | — |
| Number of ratings | 14 — better | — |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 7.0 — better | 8.0 |
| Further details — not scored | ||
| Size | 16 MB | 69 MB |
| Age rating | 4+ | 12+ |
| Developer | 永坚 郑 | Alan Charbonneau |
In-app purchases
Power Sensor
No in-app purchases
Crazy Meter
No in-app purchases
