# ChemUI Sketch Mobile vs LabNote

The clearest difference is in-app purchases: ChemUI Sketch Mobile at none against LabNote's 3. ChemUI Sketch Mobile also leads on ads (none vs shown). LabNote's advantage is update cadence (every 2 weeks vs every 9 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. LabNote sells 3 in-app purchases, starting at $0.99 per 7 days. ChemUI Sketch Mobile asks for nothing beyond the download.

ChemUI Sketch Mobile ships an update every 9 months, LabNote every 2 weeks. Both last shipped on October 14, 2026.

## The numbers

| Metric | ChemUI Sketch Mobile | LabNote |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 9 months | **Every 2 weeks** |
| Size | 2 MB | 132 MB |
| Requires iOS | 17.6 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Cyril Bucher](https://appshunter.io/developer/1784632914) | [LPAIM TECH LTDA](https://appshunter.io/developer/1796169144) |

## What reviewers say

### ChemUI Sketch Mobile

[App page](https://appshunter.io/ios/app/chemui-sketch-mobile/id6739276490)

**Features:** macOS Compatibility

**In-app purchases:** none


### LabNote

[App page](https://appshunter.io/ios/app/labnote-laboratory-notebook/id6760240972)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LabNote Pro Weekly | $0.99 | per 7 days |
| LabNote Pro Monthly | $3.99 | per month |
| LabNote Pro Annual | $20.00 | per year |


## Frequently asked questions

### Is ChemUI Sketch Mobile free?

ChemUI Sketch Mobile is free to download, with no in-app purchases.

### Is LabNote free?

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

### Do ChemUI Sketch Mobile or LabNote have ads?

LabNote shows ads; ChemUI Sketch Mobile does not.

### Which is updated more often, ChemUI Sketch Mobile or LabNote?

ChemUI Sketch Mobile ships an update every 9 months, and LabNote every 2 weeks. Most recently, ChemUI Sketch Mobile was updated on October 14, 2026 and LabNote 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.*