# ARSA PREVIEW vs ChemLab

The clearest difference is in-app purchases: ARSA PREVIEW at none against ChemLab's 1. ARSA PREVIEW also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.1). On price, update cadence and device support there is nothing between them.

Both are free to download. ChemLab sells 1 one-off in-app purchase. ARSA PREVIEW asks for nothing beyond the download.

ARSA PREVIEW ships an update every 3 days, ChemLab weekly. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | ARSA PREVIEW | ChemLab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/arsa-preview/id6505142392/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Weekly |
| Monetization | Free | — |
| Size | 30 MB | 110 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Arsa Tangchitsomkit](https://appshunter.io/developer/908885655) | [Abhishek Chauhan](https://appshunter.io/developer/1886624177) |

## What reviewers say

### ARSA PREVIEW

[App page](https://appshunter.io/ios/app/arsa-preview/id6505142392)

This app allows artists, developers, and designers to preview PSD files directly on their mobile devices. Simply export your PSD from a compatible program and share it to see your design results immediately.

**Highlights:** Direct PSD file preview on mobile, Seamless file sharing from other apps, Immediate design result visualization, Supports exported PSD assets

**Features:** macOS Compatibility

**In-app purchases:** none


### ChemLab

[App page](https://appshunter.io/ios/app/chemlab-virtual-chemistry-lab/id6770002282)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ChemLab Pro Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is ARSA PREVIEW free?

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

### Is ChemLab free?

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

### Do ARSA PREVIEW or ChemLab have ads?

ChemLab shows ads; ARSA PREVIEW does not.

### Which is updated more often, ARSA PREVIEW or ChemLab?

ARSA PREVIEW ships an update every 3 days, and ChemLab weekly. Most recently, ARSA PREVIEW was updated on October 27, 2026 and ChemLab on October 28, 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.*