# Sunja vs Quantum Lab

The clearest difference is in-app purchases: Quantum Lab at none against Sunja's 2. Quantum Lab also leads on update cadence (every 11 days vs every 5 months) and iOS requirement (13.0 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. Sunja sells 2 in-app purchases, starting at $29.99 per month. Quantum Lab asks for nothing beyond the download.

Sunja ships an update every 5 months, Quantum Lab every 11 days. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Sunja | Quantum Lab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 5 months | **Every 11 days** |
| Size | 70 MB | 30 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sunja Labs Private Limited](https://appshunter.io/developer/1774734869) | [jungkil bae](https://appshunter.io/developer/1801875279) |

## What reviewers say

### Sunja

[App page](https://appshunter.io/ios/app/sunja-interactive-3d-science/id6760365462)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Learning | $29.99 | per month |
| Annual Learning | $199.99 | per year |


### Quantum Lab

[App page](https://appshunter.io/ios/app/quantum-lab-touch-physics/id6796148810)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sunja free?

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

### Is Quantum Lab free?

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

### Do Sunja or Quantum Lab have ads?

Both Sunja and Quantum Lab show ads.

### Which is updated more often, Sunja or Quantum Lab?

Sunja ships an update every 5 months, and Quantum Lab every 11 days. Most recently, Sunja was updated on October 7, 2026 and Quantum Lab on October 12, 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.*