# Power Sensor vs Stromno

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.

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.

## The numbers

| Metric | Power Sensor | Stromno |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | [2.6 (14 ratings)](https://appshunter.io/ios/app/power-sensor/id990875399/reviews) | **[3.1 (24 ratings)](https://appshunter.io/ios/app/stromno/id1538966480/reviews)** |
| Number of ratings | 14 | **24** |
| Positive reviews | 11.7% of reviews | **57.1% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Free | Free |
| Size | 16 MB | 1 MB |
| Requires iOS | **7.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [永坚 郑](https://appshunter.io/developer/1086839265) | [Yaroslav Hryniuk](https://appshunter.io/developer/1538966482) |

## What reviewers say

### Power Sensor

[App page](https://appshunter.io/ios/app/power-sensor/id990875399)

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.

**Highlights:** Syncs smart band data to iPhone, Real-time sport stats dashboard, Sleep time tracking, Sleep quality improvement, Share and compete with friends

**Features:** macOS Compatibility

**In-app purchases:** none


### Stromno

[App page](https://appshunter.io/ios/app/stromno/id1538966480)

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.

**Highlights:** 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

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Power Sensor free?

Power Sensor is free to download, with no in-app purchases.

### Is Stromno free?

Stromno costs $4.99, with no in-app purchases.

### Which has better reviews, Power Sensor or Stromno?

Stromno is rated higher. Power Sensor averages 2.6 out of 5 from 14 ratings, while Stromno averages 3.1 from 24 ratings.

### Do Power Sensor or Stromno have ads?

Neither Power Sensor nor Stromno shows ads.

### Which is updated more often, Power Sensor or Stromno?

Power Sensor ships an update every 3 weeks, and Stromno every 3 months. Most recently, Power Sensor was updated on June 8, 2026 and Stromno on September 23, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*