# Physics AI vs Physics Zen

The clearest difference is update cadence: Physics Zen at daily against Physics AI's every 8 days. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Physics AI sells 2 in-app purchases, starting at $4.99 per 7 days and Physics Zen sells 5 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Physics AI ships an update every 8 days, Physics Zen daily. The most recent releases landed on October 15, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Physics AI | Physics Zen |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 8 days | **Daily** |
| Size | 60 MB | 269 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tat Wah Chan](https://appshunter.io/developer/1832432621) | [Ivan Terekhin](https://appshunter.io/developer/888645337) |

## What reviewers say

### Physics AI

[App page](https://appshunter.io/ios/app/physics-ai-smart-solver/id6771639942)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Physics AI - Smart Solver Weekly | $4.99 | per 7 days |
| Physics AI - Smart Solver Yearly | $29.99 | per year |


### Physics Zen

[App page](https://appshunter.io/ios/app/physics-zen-learn-and-practice/id6808595963)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Physics Zen Weekly | $3.99 | per 7 days |
| Physics Zen Monthly | $6.99 | per month |
| Physics Zen Annual | $29.99 | per year |
| Physics Zen Lifetime | $24.99 | one-time |
| Physics Zen Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is Physics AI free?

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

### Is Physics Zen free?

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

### Do Physics AI or Physics Zen have ads?

Neither Physics AI nor Physics Zen shows ads.

### Which is updated more often, Physics AI or Physics Zen?

Physics AI ships an update every 8 days, and Physics Zen daily. Most recently, Physics AI was updated on October 15, 2026 and Physics Zen 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.*