# Hogu.AI vs DoomStudy

The clearest difference is update cadence: DoomStudy at weekly against Hogu.AI's every 5 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Hogu.AI ships an update every 5 weeks, DoomStudy weekly. The most recent releases landed on October 5, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Hogu.AI | DoomStudy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Weekly** |
| Size | 8 MB | 90 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Cem Ylmaz](https://appshunter.io/developer/1750696266) | [Jalal Fatouaki](https://appshunter.io/developer/1855953539) |

## What reviewers say

### Hogu.AI

[App page](https://appshunter.io/ios/app/hoguai/id6504029268)

**Features:** macOS Compatibility

**In-app purchases:** none


### DoomStudy

[App page](https://appshunter.io/ios/app/doomstudy-scroll-to-learn/id6755923722)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Hogu.AI free?

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

### Is DoomStudy free?

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

### Do Hogu.AI or DoomStudy have ads?

Neither Hogu.AI nor DoomStudy shows ads.

### Which is updated more often, Hogu.AI or DoomStudy?

Hogu.AI ships an update every 5 weeks, and DoomStudy weekly. Most recently, Hogu.AI was updated on October 5, 2026 and DoomStudy on October 1, 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.*