# Molecule vs Chemy

The clearest difference is rating: Chemy at 5.0 against Molecule's 4.0. Chemy also leads on update cadence (every 4 days vs every 4 months) and review sentiment (89% vs 76%). Molecule's advantage is iOS requirement (7.0 vs 17.0). On price, ratings volume, 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.

Chemy holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 10 and 6 respectively. Written reviews point the same way: 76% of Molecule's written reviews are positive against 89% of Chemy's.

Molecule ships an update every 4 months, Chemy every 4 days. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Molecule | Chemy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (10 ratings)](https://appshunter.io/ios/app/molecule/id797331776/reviews) | **[5.0 (6 ratings)](https://appshunter.io/ios/app/chemy-chemistry-companion/id1542390153/reviews)** |
| Number of ratings | **10** | 6 |
| Positive reviews | 76.2% of reviews | **88.9% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 4 days** |
| Monetization | Free | Free |
| Size | 9 MB | 5 MB |
| Requires iOS | **7.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Kirill Blinov](https://appshunter.io/developer/630833420) | [Zhijin Chen](https://appshunter.io/developer/755385892) |

## What reviewers say

### Molecule

[App page](https://appshunter.io/ios/app/molecule/id797331776)

This app allows users to create and share chemical structures with ease. It calculates molecular formula, weight, and elemental composition in real-time as you draw. Ideal for students and researchers needing a simple tool for molecular visualization.

**Highlights:** Draw chemical structures, Share structures, Calculate MF, MW, Monoisotopic Mass, Calculate Elemental Composition, Interactive calculations, Modern interface

**Features:** macOS Compatibility

**In-app purchases:** none


### Chemy

[App page](https://appshunter.io/ios/app/chemy-chemistry-companion/id1542390153)

This app provides a user-friendly periodic table with detailed element attributes. It offers tools for formatting chemical formulas, analyzing elements, and creating advanced molecular models. Users can also open and visualize molecule model files in various formats.

**Highlights:** Intuitive periodic table with element attributes, Chemical formula formatting, Predictive mass spectrum and elemental analysis, Advanced carbon nanotube and graphene modeling, Export models as GJF or XYZ files, Open and visualize molecule model files (xyz, gjf)

**In-app purchases:** none


## Frequently asked questions

### Is Molecule free?

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

### Is Chemy free?

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

### Which has better reviews, Molecule or Chemy?

Chemy is rated higher. Molecule averages 4.0 out of 5 from 10 ratings, while Chemy averages 5.0 from 6 ratings.

### Do Molecule or Chemy have ads?

Neither Molecule nor Chemy shows ads.

### Which is updated more often, Molecule or Chemy?

Molecule ships an update every 4 months, and Chemy every 4 days. Most recently, Molecule was updated on November 6, 2026 and Chemy on November 3, 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.*