Power Sensor vs Stromno
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
Read full descriptionHide full description
"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.
Stromno
Broadcast your real-time heart rate from your Apple Watch to live streams on platforms like Twitch and YouTube. Easily set up a customizable widget or overlay for your stream with a simple login code.
- Heart rate streaming from Apple Watch
- Live stream integration (Twitch, YouTube)
- Customizable widget/overlay designs
- Easy 1-minute setup
- OBS, Twitch Studio, XSplit, Streamlabs OBS compatible
- Integrates with Apple Health
Read full descriptionHide full description
Stromno app allows you easily broadcast your heart rate data from Apple Watch and show it on live stream. Login with a short code and BPM value will be shown in your personal widget/overlay. Stromno was created for live streamers to show real-time heart rate on Twitch, YouTube. It is easy to set up Stromno heart rate widget in 1 minute. You can customize the widget and get a unique URL for OBS(Twitch Studio, XSplit, Streamlabs OBS) on the website. Multiple designs available to fit your stream layout. The App integrates with Apple Health app. Visit stromno.com to create an account, get login code, design your widget/overlay. How to use: - get the Apple Watch app - create an account on stromno.com - get a short login code on the site Dashboard - open the Watch app, login, start streaming - change the widget on the website - copy your heart rate widget URL and use it as a Browser source (in OBS, Twitch Studio, XSplit, Streamlabs OBS) - enjoy more fun and interactivity on your live stream on Twitch or YouTube
Screenshots
Verdict
The clearest difference is review sentiment: Stromno at 57% against Power Sensor's 12%. Stromno also leads on rating (3.1 vs 2.6). Power Sensor's advantage is price (Free vs $4.99) and update cadence (every 3 weeks vs every 3 months). On ratings volume, ads, in-app purchases and monetization model 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
Power Sensor is free to download; Stromno costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Stromno holds the better App Store score, 3.1 against 2.6. Both are backed by a comparable volume of ratings — 14 and 24 respectively. Written reviews point the same way: 12% of Power Sensor's written reviews are positive against 57% of Stromno's.
Power Sensor ships an update every 3 weeks, Stromno every 3 months. The most recent releases landed on June 8, 2026 and September 23, 2026 respectively.
| Parameter | Power Sensor | Stromno |
|---|---|---|
| Price | Free — better | $4.99 |
| Rating | 2.6 (14 ratings) | 3.1 (24 ratings) — better |
| Positive reviews | 11.7% of reviews | 57.1% of reviews — better |
| Number of ratings | 14 | 24 — better |
| Update frequency | Every 3 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod, Apple Watch — better |
| Requires iOS | 7.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 16 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | 永坚 郑 | Yaroslav Hryniuk |
Customer experience
Power Sensor
Stromno
In-app purchases
Power Sensor
No in-app purchases
Stromno
No in-app purchases
