# Unfog vs Ai Tutor Pro

The clearest difference is ads: Unfog at none against Ai Tutor Pro's shown. Unfog also leads on update cadence (every 2 days vs every 2 weeks). Ai Tutor Pro's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 17.0). On price and in-app purchases there is nothing between them.

Both are free to download. Unfog sells 3 in-app purchases, starting at $2.99 per 7 days and Ai Tutor Pro sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Unfog ships an update every 2 days, Ai Tutor Pro every 2 weeks. The most recent releases landed on October 1, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Unfog | Ai Tutor Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Every 2 weeks |
| Size | 80 MB | 38 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [BITSEC SP. Z O.O.](https://appshunter.io/developer/1801990616) | [Sadat Anwar](https://appshunter.io/developer/6780175734) |

## What reviewers say

### Unfog

[App page](https://appshunter.io/ios/app/unfog-feynman-study-notes/id6776245365)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unfog weekly | $2.99 | per 7 days |
| Unfog Monthly | $17.99 | per month |
| Unfog Annual | $29.99 | per year |


### Ai Tutor Pro

[App page](https://appshunter.io/ios/app/ai-tutor-pro-study-and-learn/id6780175732)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ai Tutor Pro Basic | $2.99 | per month |
| Ai Tutor Pro Premium | $4.99 | per month |


## Frequently asked questions

### Is Unfog free?

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

### Is Ai Tutor Pro free?

Ai Tutor Pro is free to download, with in-app purchases available.

### Do Unfog or Ai Tutor Pro have ads?

Ai Tutor Pro shows ads; Unfog does not.

### Which is updated more often, Unfog or Ai Tutor Pro?

Unfog ships an update every 2 days, and Ai Tutor Pro every 2 weeks. Most recently, Unfog was updated on October 1, 2026 and Ai Tutor Pro on October 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*