# DoomStudy vs FactLoop

The clearest difference is in-app purchases: DoomStudy at none against FactLoop's 2. DoomStudy also leads on device support (3 vs 1) and iOS requirement (15.1 vs 26.0). On price and ads there is nothing between them.

Both are free to download. FactLoop sells 2 in-app purchases, starting at $1.99 per month. DoomStudy asks for nothing beyond the download.

## The numbers

| Metric | DoomStudy | FactLoop |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | — |
| Size | 90 MB | 1 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jalal Fatouaki](https://appshunter.io/developer/1855953539) | [Alan Lebrument](https://appshunter.io/developer/1879526652) |

## What reviewers say

### DoomStudy

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

**Features:** macOS Compatibility

**In-app purchases:** none


### FactLoop

[App page](https://appshunter.io/ios/app/factloop/id6759564385)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Factloop+ monthly | $1.99 | per month |
| FactLoop+ annual | $17.99 | per year |


## Frequently asked questions

### Is DoomStudy free?

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

### Is FactLoop free?

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

### Do DoomStudy or FactLoop have ads?

Neither DoomStudy nor FactLoop shows ads.

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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.*