# Idemat vs phyphox

The clearest difference is rating: Idemat at 5.0 against phyphox's 4.6. phyphox's advantage is ratings volume (276 vs 3) and update cadence (every 3 months vs every 8 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.

Idemat holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: phyphox has 276 ratings behind it against 3, so its average is the more settled of the two.

Idemat ships an update every 8 months, phyphox every 3 months. The most recent releases landed on October 1, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Idemat | phyphox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/idemat/id973292211/reviews)** | [4.6 (276 ratings)](https://appshunter.io/ios/app/phyphox/id1127319693/reviews) |
| Number of ratings | 3 | **276** |
| Positive reviews | — | 78.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 26 MB | 19 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [joost vogtlander](https://appshunter.io/developer/1117266085) | [RWTH Aachen University](https://appshunter.io/developer/371466796) |

## What reviewers say

### Idemat

[App page](https://appshunter.io/ios/app/idemat/id973292211)

This app helps designers assess the environmental impact of their material choices and processes. It provides extensive data on materials and processes to support sustainable product design, making life cycle assessment more accessible.

**Highlights:** Material and process environmental impact data, Eco-costs and carbon footprint assessment, Sustainable product design support, Life cycle assessment integration, Predefined end-of-life scenarios, Visual rankings and detail screens

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

**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 Idemat free?

Idemat 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, Idemat or phyphox?

Idemat is rated higher. Idemat averages 5.0 out of 5 from 3 ratings, while phyphox averages 4.6 from 276 ratings.

### Do Idemat or phyphox have ads?

Neither Idemat nor phyphox shows ads.

### Which is updated more often, Idemat or phyphox?

Idemat ships an update every 8 months, and phyphox every 3 months. Most recently, Idemat was updated on October 1, 2026 and phyphox on October 14, 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.*