# Watch Sensor Logger vs speemo

The clearest difference is in-app purchases: Watch Sensor Logger at none against speemo's 1. speemo's advantage is ads (none vs shown) and update cadence (every 2 months vs every 25 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. speemo sells 1 one-off in-app purchase. Watch Sensor Logger asks for nothing beyond the download.

Watch Sensor Logger ships an update every 25 months, speemo every 2 months. The most recent releases landed on October 1, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Watch Sensor Logger | speemo |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 25 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 17 MB | 3 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [yuya kanbetsunawa](https://appshunter.io/developer/1597026161) | [Dominik Kolb](https://appshunter.io/developer/1527901253) |

## 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


### speemo

[App page](https://appshunter.io/ios/app/speemo/id6749175148)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| speemo pro | $3.99 | one-time |


## Frequently asked questions

### Is Watch Sensor Logger free?

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

### Is speemo free?

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

### Do Watch Sensor Logger or speemo have ads?

Watch Sensor Logger shows ads; speemo does not.

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

Watch Sensor Logger ships an update every 25 months, and speemo every 2 months. Most recently, Watch Sensor Logger was updated on October 1, 2026 and speemo on October 13, 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.*