# Sensor vs HemiPhysioData

The clearest difference is review sentiment: HemiPhysioData at 100% against Sensor's 56%. HemiPhysioData also leads on iOS requirement (13.2 vs 26.0). Sensor's advantage is update cadence (every 2 months vs every 18 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Sensor ships an update every 2 months, HemiPhysioData every 18 months. The most recent releases landed on September 10, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | Sensor | HemiPhysioData |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/sensor-app/id1466399692/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 55.6% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 18 months |
| Monetization | Free | Free |
| Size | 40 MB | 2 MB |
| Requires iOS | 26.0 | **13.2** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Volker Schmitt](https://appshunter.io/developer/1466399691) | [Moez ur Rehman](https://appshunter.io/developer/1502416676) |

## What reviewers say

### Sensor

[App page](https://appshunter.io/ios/app/sensor-app/id1466399692)

Access and utilize all your device's sensors with this comprehensive tool. Explore GPS, gyroscope, acceleration, magnetometer, altimeter, and attitude data for various applications and research.

**Highlights:** Access GPS for precise location, Utilize gyroscope for orientation, Measure acceleration and movement, Detect magnetic fields with magnetometer, Access altimeter and pressure data, Monitor device attitude (roll, pitch, yaw)

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Sensor free?

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

### Is HemiPhysioData free?

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

### Do Sensor or HemiPhysioData have ads?

Neither Sensor nor HemiPhysioData shows ads.

### Which is updated more often, Sensor or HemiPhysioData?

Sensor ships an update every 2 months, and HemiPhysioData every 18 months. Most recently, Sensor was updated on September 10, 2026 and HemiPhysioData on June 4, 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.*