# JSAT vs AI From Zero

The clearest difference is in-app purchases: JSAT at none against AI From Zero's 7. JSAT also leads on iOS requirement (15.0 vs 17.0). AI From Zero's advantage is device support. On price there is nothing between them.

Both are free to download. AI From Zero sells 5 one-off in-app purchases. JSAT asks for nothing beyond the download.

## The numbers

| Metric | JSAT | AI From Zero |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Every 4 days |
| Size | 24 MB | 147 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 9+ |
| Developer | [L Labs Inc.](https://appshunter.io/developer/444451876) | [XU ZHAO](https://appshunter.io/developer/6774023434) |

## What reviewers say

### JSAT

[App page](https://appshunter.io/ios/app/jsat/id6450735374)

**In-app purchases:** none


### AI From Zero

[App page](https://appshunter.io/ios/app/ai-from-zero/id6800180169)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Course: Levels 4–9 | $4.99 | one-time |
| Full Course Unlock | $4.99 | one-time |
| Prompt Full Course Unlock | $4.99 | one-time |
| AI-Ready Full Course Unlock | $4.99 | one-time |
| Unlock All 6 Courses | $19.99 | one-time |


## Frequently asked questions

### Is JSAT free?

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

### Is AI From Zero free?

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

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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.*