# Simple Physics vs XAMI

The clearest difference is in-app purchases: XAMI at none against Simple Physics's 1. Simple Physics's advantage is iOS requirement (12.0 vs 16.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Simple Physics sells 1 one-off in-app purchase. XAMI asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 25, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Simple Physics | XAMI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Size | 124 MB | 51 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ibrahim Ahmed](https://appshunter.io/developer/1683023823) | [Khaled Mohamed](https://appshunter.io/developer/1489806911) |

## What reviewers say

### Simple Physics

[App page](https://appshunter.io/ios/app/simple-physics/id6503942439)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Product Tier 10177 | $2.99 | one-time |


### XAMI

[App page](https://appshunter.io/ios/app/xami/id6605935188)

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

**In-app purchases:** none


## Frequently asked questions

### Is Simple Physics free?

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

### Is XAMI free?

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

### Do Simple Physics or XAMI have ads?

Neither Simple Physics nor XAMI shows ads.

### Which is updated more often, Simple Physics or XAMI?

Simple Physics ships an update every 2 months, and XAMI every 2 months. Most recently, Simple Physics was updated on October 25, 2026 and XAMI on October 29, 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.*