# MySensor² vs Travel Bubble

The clearest difference is in-app purchases: Travel Bubble at none against MySensor²'s 4. Travel Bubble also leads on iOS requirement (13.0 vs 17.5). On price, update cadence, 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. Travel Bubble asks for nothing beyond the download.

MySensor² ships an update monthly, Travel Bubble fortnightly. Both last shipped on October 25, 2026.

## The numbers

| Metric | MySensor² | Travel Bubble |
| --- | --- | --- |
| 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 | **Fortnightly** |
| Monetization | Freemium | — |
| Size | 28 MB | 20 MB |
| Requires iOS | 17.5 | **13.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [兴华 范](https://appshunter.io/developer/440983944) | [梦磊 杨](https://appshunter.io/developer/1866268086) |

## 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 |


### Travel Bubble

[App page](https://appshunter.io/ios/app/travel-bubble/id6757362805)

**In-app purchases:** none


## Frequently asked questions

### Is MySensor² free?

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

### Is Travel Bubble free?

Travel Bubble is free to download, with no in-app purchases.

### Do MySensor² or Travel Bubble have ads?

Neither MySensor² nor Travel Bubble shows ads.

### Which is updated more often, MySensor² or Travel Bubble?

MySensor² ships an update monthly, and Travel Bubble fortnightly. Most recently, MySensor² was updated on October 25, 2026 and Travel Bubble on October 25, 2026.

---

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