# Physics Toolbox Accelerometer vs phyphox

The clearest difference is rating: phyphox at 4.6 against Physics Toolbox Accelerometer's 2.0. phyphox also leads on review sentiment (79% vs 38%) and ratings volume (272 vs 5). 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.

phyphox holds the better App Store score, 4.6 against 2.0. That said, the two scores are not equally well evidenced: phyphox has 272 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 38% of Physics Toolbox Accelerometer's written reviews are positive against 79% of phyphox's.

Physics Toolbox Accelerometer ships an update every 8 months, phyphox every 3 months. The most recent releases landed on September 7, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Physics Toolbox Accelerometer | phyphox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (5 ratings)](https://appshunter.io/ios/app/physics-toolbox-accelerometer/id1008160133/reviews) | **[4.6 (272 ratings)](https://appshunter.io/ios/app/phyphox/id1127319693/reviews)** |
| Number of ratings | 5 | **272** |
| Positive reviews | 38.5% of reviews | **78.9% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 15 MB | 19 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Chrystian Vieyra](https://appshunter.io/developer/998187453) | [RWTH Aachen University](https://appshunter.io/developer/371466796) |

## What reviewers say

### Physics Toolbox Accelerometer

[App page](https://appshunter.io/ios/app/physics-toolbox-accelerometer/id1008160133)

This app uses your device's accelerometer to measure and graph G-Force and acceleration over time. It allows you to record and export data as a CSV file, making it useful for analyzing motion in vehicles, vibrations, and educational physics experiments.

**Highlights:** Measures G-Force and acceleration, Graphs G-Force vs. Time, Graphs Acceleration vs. Time, Records and exports data as CSV, Analyzes motion in vehicles and vibrations, Useful for classroom physics experiments

**Features:** macOS Compatibility

**In-app purchases:** none


### phyphox

[App page](https://appshunter.io/ios/app/phyphox/id1127319693)

Unlock your phone's sensors for scientific exploration. Conduct pre-built experiments or create your own using accelerometers, magnetometers, and more. Analyze and export data in various formats for further study.

**Highlights:** Pre-defined experiments, Data export (CSV, TSV, Excel), Web-based remote control, Custom experiment editor, Access to phone sensors, Advanced analysis functions

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 💡 Access to phone sensors
- 🔬 Useful for physics experiments
- 📊 Data logging and export
- 🆓 Free and no ads
- 🤔 Sparks curiosity

**What reviewers complain about**

- 🐛 Bugs and crashes
- 📉 Inconsistent performance
- 🔒 App locks/minimizes recording
- ❓ Units not always clear
- ⚠️ Potential for device damage

**Reported bugs**

- App crashes on older devices
- Barometer not working on iOS 17.4
- Network error: Generic error
- Sound measurement curve disappears
- App crashes frequently

**Requested features**

- Add infrasound detector
- More units of measurement (G-force, PSI, feet)
- NFC/RFID support
- In-app bug report feature
- Allow other sensors via USB-C


## Frequently asked questions

### Is Physics Toolbox Accelerometer free?

Physics Toolbox Accelerometer is free to download, with no in-app purchases.

### Is phyphox free?

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

### Which has better reviews, Physics Toolbox Accelerometer or phyphox?

phyphox is rated higher. Physics Toolbox Accelerometer averages 2.0 out of 5 from 5 ratings, while phyphox averages 4.6 from 272 ratings.

### Do Physics Toolbox Accelerometer or phyphox have ads?

Neither Physics Toolbox Accelerometer nor phyphox shows ads.

### Which is updated more often, Physics Toolbox Accelerometer or phyphox?

Physics Toolbox Accelerometer ships an update every 8 months, and phyphox every 3 months. Most recently, Physics Toolbox Accelerometer was updated on September 7, 2026 and phyphox on September 24, 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.*