# iMolview vs phyphox

The clearest difference is price: phyphox at Free against iMolview's $0.99. phyphox also leads on rating (4.6 vs 3.6) and ratings volume (282 vs 13). On review sentiment, update cadence, ads and in-app purchases there is nothing between them.

phyphox is free to download; iMolview costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

phyphox holds the better App Store score, 4.6 against 3.6. That said, the two scores are not equally well evidenced: phyphox has 282 ratings behind it against 13, so its average is the more settled of the two. Written reviews split almost evenly too, at 79% and 79% positive.

iMolview ships an update every 2 months, phyphox every 3 months. The most recent releases landed on November 5, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | iMolview | phyphox |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [3.6 (13 ratings)](https://appshunter.io/ios/app/imolview/id431002306/reviews) | **[4.6 (282 ratings)](https://appshunter.io/ios/app/phyphox/id1127319693/reviews)** |
| Number of ratings | 13 | **282** |
| Positive reviews | **78.9% 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 | 55 MB | 19 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | +4 | 4+ |
| Developer | [Molsoft](https://appshunter.io/developer/431002309) | [RWTH Aachen University](https://appshunter.io/developer/371466796) |

## What reviewers say

### iMolview

[App page](https://appshunter.io/ios/app/imolview/id431002306)

Explore biological molecules in 3D. View proteins, DNA, and drug structures from major databases. Customize representations, select specific elements, and analyze molecular interactions. Sync your own files and save scenes for later.

**Highlights:** 3D molecular visualization, Browse PDB, DrugBank, Pubchem, Customizable representations, Individual element coloring, Neighbor analysis, Electron density map contouring, Scene saving and management

**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 iMolview free?

iMolview costs $0.99, with no in-app purchases.

### Is phyphox free?

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

### Which has better reviews, iMolview or phyphox?

phyphox is rated higher. iMolview averages 3.6 out of 5 from 13 ratings, while phyphox averages 4.6 from 282 ratings.

### Do iMolview or phyphox have ads?

Neither iMolview nor phyphox shows ads.

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

iMolview ships an update every 2 months, and phyphox every 3 months. Most recently, iMolview was updated on November 5, 2026 and phyphox on November 2, 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.*