# Train4Science vs Little Quantum App

The clearest difference is update cadence: Little Quantum App at every 2 weeks against Train4Science's every 5 months. Train4Science's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Train4Science ships an update every 5 months, Little Quantum App every 2 weeks. The most recent releases landed on October 6, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Train4Science | Little Quantum App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Size | 146 MB | 169 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Playersjourney GmbH](https://appshunter.io/developer/1461683218) | [Ludwig-Maximilians-Universitaet Muenchen](https://appshunter.io/developer/1634377997) |

## What reviewers say

### Train4Science

[App page](https://appshunter.io/ios/app/train4science/id6462454803)

**Features:** macOS Compatibility

**In-app purchases:** none


### Little Quantum App

[App page](https://appshunter.io/ios/app/little-quantum-app/id6752292817)

**In-app purchases:** none


## Frequently asked questions

### Is Train4Science free?

Train4Science is free to download, with no in-app purchases.

### Is Little Quantum App free?

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

### Do Train4Science or Little Quantum App have ads?

Neither Train4Science nor Little Quantum App shows ads.

### Which is updated more often, Train4Science or Little Quantum App?

Train4Science ships an update every 5 months, and Little Quantum App every 2 weeks. Most recently, Train4Science was updated on October 6, 2026 and Little Quantum App on October 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*