# MoleculeSketch iP vs Molecule Lab

The clearest difference is rating: MoleculeSketch iP at 4.5 against Molecule Lab's 4.0. MoleculeSketch iP also leads on update cadence (every 2 months vs every 24 months). Molecule Lab's advantage is in-app purchases (none vs 1) and ratings volume (18 vs 4). On price, review sentiment, ads and iOS requirement there is nothing between them.

Both are free to download. MoleculeSketch iP sells 1 one-off in-app purchase. Molecule Lab asks for nothing beyond the download.

MoleculeSketch iP holds the better App Store score, 4.5 against 4.0. Both are backed by a comparable volume of ratings — 4 and 18 respectively. Written reviews split almost evenly too, at 50% and 50% positive.

MoleculeSketch iP ships an update every 2 months, Molecule Lab every 24 months. The most recent releases landed on June 1, 2026 and August 25, 2026 respectively.

## The numbers

| Metric | MoleculeSketch iP | Molecule Lab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (4 ratings)](https://appshunter.io/ios/app/moleculesketch-ip/id1281284737/reviews)** | [4.0 (18 ratings)](https://appshunter.io/ios/app/molecule-lab/id1434237899/reviews) |
| Number of ratings | 4 | **18** |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 24 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 59 MB | 1 MB |
| Requires iOS | **13** | 13.2 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Stefan Dolder](https://appshunter.io/developer/942173209) | [Maxamix](https://appshunter.io/developer/667167982) |

## What reviewers say

### MoleculeSketch iP

[App page](https://appshunter.io/ios/app/moleculesketch-ip/id1281284737)

Easily draw chemical formulas and reactions with this intuitive application. It offers features like adding atoms, bonds, and functional groups, with advanced options available through an in-app purchase. Share your creations or import existing structures.

**Highlights:** Draw atoms and bonds, Select various bond types, Add functional groups, Show missing hydrogen atoms, Calculate molecular mass, Import mol/sdf files, Copy, paste, and cut drawings

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full version | $1.99 | one-time |


### Molecule Lab

[App page](https://appshunter.io/ios/app/molecule-lab/id1434237899)

Create and view 3D molecular models with an intuitive editor. Supports various elements, bond types, and conformations, with undo/redo functionality. Share your creations easily via messaging and email.

**Highlights:** Build molecules in 3D, Supports oxygen, nitrogen, chlorine, carbon, hydrogen, Double and triple bond creation, Branching and rotation conformations, Undo, redo, and delete controls, Save and edit molecules, Share via text, email, and other services

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MoleculeSketch iP free?

MoleculeSketch iP is free to download, with in-app purchases available.

### Is Molecule Lab free?

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

### Which has better reviews, MoleculeSketch iP or Molecule Lab?

MoleculeSketch iP is rated higher. MoleculeSketch iP averages 4.5 out of 5 from 4 ratings, while Molecule Lab averages 4.0 from 18 ratings.

### Do MoleculeSketch iP or Molecule Lab have ads?

Neither MoleculeSketch iP nor Molecule Lab shows ads.

### Which is updated more often, MoleculeSketch iP or Molecule Lab?

MoleculeSketch iP ships an update every 2 months, and Molecule Lab every 24 months. Most recently, MoleculeSketch iP was updated on June 1, 2026 and Molecule Lab on August 25, 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.*