# JA vs 3M Physics

The clearest difference is update cadence: JA at every 3 weeks against 3M Physics's every 5 months. 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.

JA ships an update every 3 weeks, 3M Physics every 5 months. The most recent releases landed on October 15, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | JA | 3M Physics |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 months |
| Size | 63 MB | 30 MB |
| Requires iOS | 14.0 | **13.2** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mohamed ElHusseini](https://appshunter.io/developer/1565152479) | [marco wageh](https://appshunter.io/developer/1582396379) |

## What reviewers say

### JA

[App page](https://appshunter.io/ios/app/ja-bio-academy/id6444244491)

**Features:** macOS Compatibility

**In-app purchases:** none


### 3M Physics

[App page](https://appshunter.io/ios/app/3m-physics/id6467128592)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is JA free?

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

### Is 3M Physics free?

3M Physics is free to download, with no in-app purchases.

### Do JA or 3M Physics have ads?

Neither JA nor 3M Physics shows ads.

### Which is updated more often, JA or 3M Physics?

JA ships an update every 3 weeks, and 3M Physics every 5 months. Most recently, JA was updated on October 15, 2026 and 3M Physics on October 7, 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.*