# Physics AI vs PhysAI

The clearest difference is iOS requirement: Physics AI at 15.1 against PhysAI's 17.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Physics AI sells 2 in-app purchases, starting at $2.99 per 7 days and PhysAI sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Physics AI ships an update every 2 weeks, PhysAI every 9 days. The most recent releases landed on September 18, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Physics AI | PhysAI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 9 days** |
| Size | 78 MB | 24 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yaroslav Trofimov](https://appshunter.io/developer/1851395994) | [圣跃 巩](https://appshunter.io/developer/1757456097) |

## What reviewers say

### Physics AI

[App page](https://appshunter.io/ios/app/physics-ai-homework-helper/id6761910881)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Physics Premium | $2.99 | per 7 days |
| Premium Physics | $34.99 | per year |


### PhysAI

[App page](https://appshunter.io/ios/app/physai-physics-solver-and-chat/id6782878306)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $4.99 | per 7 days |
| Pro Annual | $29.99 | per year |


## Frequently asked questions

### Is Physics AI free?

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

### Is PhysAI free?

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

### Do Physics AI or PhysAI have ads?

Neither Physics AI nor PhysAI shows ads.

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

Physics AI ships an update every 2 weeks, and PhysAI every 9 days. Most recently, Physics AI was updated on September 18, 2026 and PhysAI on September 13, 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.*