# PHYWE measureAPP Cobra4 vs phyphox

The clearest difference is review sentiment: phyphox at 79% against PHYWE measureAPP Cobra4's 0%. phyphox also leads on rating (4.6 vs 1.0) and ratings volume (276 vs 1). 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.

phyphox holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: phyphox has 276 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of PHYWE measureAPP Cobra4's written reviews are positive against 79% of phyphox's.

PHYWE measureAPP Cobra4 ships an update every 2 months, phyphox every 3 months. The most recent releases landed on October 10, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | PHYWE measureAPP Cobra4 | phyphox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/phywe-measureapp-cobra4/id938694493/reviews) | **[4.6 (276 ratings)](https://appshunter.io/ios/app/phyphox/id1127319693/reviews)** |
| Number of ratings | 1 | **276** |
| Positive reviews | 0.0% of reviews | **78.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | Free |
| Size | 72 MB | 19 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [PHYWE Systeme GmbH & Co. KG](https://appshunter.io/developer/649820638) | [RWTH Aachen University](https://appshunter.io/developer/371466796) |

## What reviewers say

### PHYWE measureAPP Cobra4

[App page](https://appshunter.io/ios/app/phywe-measureapp-cobra4/id938694493)

Transform your iPhone or iPad into a versatile measurement tool for science education. Explore over 50 parameters using wireless data logging systems or your device's internal sensors. Analyze, store, and share experiment data easily.

**Highlights:** Measure over 50 parameters, Use internal device sensors, Visualize data as graphs, Store and analyze measurements, Create project folders with media, Share data wirelessly, Export data to other apps

**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 PHYWE measureAPP Cobra4 free?

PHYWE measureAPP Cobra4 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, PHYWE measureAPP Cobra4 or phyphox?

phyphox is rated higher. PHYWE measureAPP Cobra4 averages 1.0 out of 5 from 1 ratings, while phyphox averages 4.6 from 276 ratings.

### Do PHYWE measureAPP Cobra4 or phyphox have ads?

Neither PHYWE measureAPP Cobra4 nor phyphox shows ads.

### Which is updated more often, PHYWE measureAPP Cobra4 or phyphox?

PHYWE measureAPP Cobra4 ships an update every 2 months, and phyphox every 3 months. Most recently, PHYWE measureAPP Cobra4 was updated on October 10, 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.*