# HemiPhysioData vs Acc.elerometer

The clearest difference is iOS requirement: HemiPhysioData at 13.2 against Acc.elerometer's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

HemiPhysioData ships an update every 18 months, Acc.elerometer every 20 months. The most recent releases landed on June 4, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | HemiPhysioData | Acc.elerometer |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 18 months** | Every 20 months |
| Monetization | Free | — |
| Size | 2 MB | 10 MB |
| Requires iOS | **13.2** | 26.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Moez ur Rehman](https://appshunter.io/developer/1502416676) | [Pantiukhin Andrei](https://appshunter.io/developer/1585711909) |

## What reviewers say

### HemiPhysioData

[App page](https://appshunter.io/ios/app/hemiphysiodata/id1502983547)

This app collects raw and processed sensor data from your Apple Watch, including accelerometer and gyroscope readings. It allows you to select activities, preferences, and then exports the data as a CSV file to your iPhone for analysis. Ideal for tracking movement and Range of Motion (ROM) measurements.

**Highlights:** Collects raw and processed sensor data, User-friendly activity selection, Exports data as CSV files, Supports accelerometer and gyroscope, Configurable sampling rate, Haptic feedback for logging alerts

**In-app purchases:** none


### Acc.elerometer

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HemiPhysioData free?

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

### Is Acc.elerometer free?

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

### Do HemiPhysioData or Acc.elerometer have ads?

Neither HemiPhysioData nor Acc.elerometer shows ads.

### Which is updated more often, HemiPhysioData or Acc.elerometer?

HemiPhysioData ships an update every 18 months, and Acc.elerometer every 20 months. Most recently, HemiPhysioData was updated on June 4, 2026 and Acc.elerometer on September 16, 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.*