# MySensor² vs Check Site

The clearest difference is in-app purchases: Check Site at none against MySensor²'s 4. Check Site also leads on iOS requirement (13.0 vs 17.5). MySensor²'s advantage is update cadence (monthly vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. MySensor² sells 4 in-app purchases, starting at $2.99 per 7 days. Check Site asks for nothing beyond the download.

MySensor² ships an update monthly, Check Site every 3 months. Both last shipped on October 25, 2026.

## The numbers

| Metric | MySensor² | Check Site |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (4 ratings)](https://appshunter.io/ios/app/mysensorbike-sensor-battery/id6504740377/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Freemium | — |
| Size | 28 MB | 31 MB |
| Requires iOS | 17.5 | **13.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [兴华 范](https://appshunter.io/developer/440983944) | [Geun ryeol Lee](https://appshunter.io/developer/1159586590) |

## What reviewers say

### MySensor²

[App page](https://appshunter.io/ios/app/mysensorbike-sensor-battery/id6504740377)

Effortlessly monitor the battery levels of all your cycling sensors, including power meters, heart rate monitors, and shifters, in one convenient app. Get quick access to battery status via desktop widgets or Apple Watch Stacks without needing to open the application.

**Highlights:** All sensor batteries in one place, Power meter battery status, Heart rate monitor battery status, Speed and cadence sensor monitoring, Electronic shifter battery checks, Home screen widgets, Apple Watch Stack support

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (Weekly) | $2.99 | per 7 days |
| Premium (Monthly) | $6.99 | per month |
| Premium (Annual) | $19.99 | per year |
| Premium (Lifetime) | $39.99 | one-time |


### Check Site

[App page](https://appshunter.io/ios/app/check-site-simple-bookmarks/id6760447650)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is MySensor² free?

MySensor² is free to download, with in-app purchases available.

### Is Check Site free?

Check Site is free to download, with no in-app purchases.

### Do MySensor² or Check Site have ads?

Neither MySensor² nor Check Site shows ads.

### Which is updated more often, MySensor² or Check Site?

MySensor² ships an update monthly, and Check Site every 3 months. Most recently, MySensor² was updated on October 25, 2026 and Check Site on October 25, 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.*