# Watch Sensor Logger vs 5to9

The clearest difference is ads: 5to9 at none against Watch Sensor Logger's shown. 5to9 also leads on update cadence (daily vs every 25 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Watch Sensor Logger ships an update every 25 months, 5to9 daily. The most recent releases landed on August 8, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Watch Sensor Logger | 5to9 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 25 months | **Daily** |
| Monetization | Free | — |
| Size | 17 MB | 7 MB |
| Requires iOS | 17.0 | **16.6** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [yuya kanbetsunawa](https://appshunter.io/developer/1597026161) | [hongdae ju](https://appshunter.io/developer/986819803) |

## What reviewers say

### Watch Sensor Logger

[App page](https://appshunter.io/ios/app/watch-sensor-logger/id1634449655)

Log detailed motion and GPS data from your Apple Watch. Export sensor readings like acceleration, attitude, and location as a CSV file for analysis. This app is exclusively designed for Apple Watch.

**Highlights:** Log sensor data, GPS tracking, Export to CSV, Acceleration logging, Attitude data, Time stamping

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

**In-app purchases:** none


### 5to9

[App page](https://appshunter.io/ios/app/5to9/id6755388538)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Watch Sensor Logger free?

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

### Is 5to9 free?

5to9 is free to download, with no in-app purchases.

### Do Watch Sensor Logger or 5to9 have ads?

Watch Sensor Logger shows ads; 5to9 does not.

### Which is updated more often, Watch Sensor Logger or 5to9?

Watch Sensor Logger ships an update every 25 months, and 5to9 daily. Most recently, Watch Sensor Logger was updated on August 8, 2026 and 5to9 on September 19, 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.*