# Acc.elerometer vs Watch Sensor Logger

The clearest difference is ads: Acc.elerometer at none against Watch Sensor Logger's shown. Watch Sensor Logger's advantage is iOS requirement (17.0 vs 26.0). On price, update cadence, in-app purchases and device support there is nothing between them.

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

Acc.elerometer ships an update every 20 months, Watch Sensor Logger every 25 months. The most recent releases landed on September 16, 2026 and August 8, 2026 respectively.

## The numbers

| Metric | Acc.elerometer | Watch Sensor Logger |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 20 months** | Every 25 months |
| Monetization | — | Free |
| Size | 10 MB | 17 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Pantiukhin Andrei](https://appshunter.io/developer/1585711909) | [yuya kanbetsunawa](https://appshunter.io/developer/1597026161) |

## What reviewers say

### Acc.elerometer

[App page](https://appshunter.io/ios/app/accelerometer/id1631020465)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Acc.elerometer free?

Acc.elerometer is free to download, with no in-app purchases.

### Is Watch Sensor Logger free?

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

### Do Acc.elerometer or Watch Sensor Logger have ads?

Watch Sensor Logger shows ads; Acc.elerometer does not.

### Which is updated more often, Acc.elerometer or Watch Sensor Logger?

Acc.elerometer ships an update every 20 months, and Watch Sensor Logger every 25 months. Most recently, Acc.elerometer was updated on September 16, 2026 and Watch Sensor Logger on August 8, 2026.

---

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