# KnowUp vs Stuudy

The clearest difference is in-app purchases: Stuudy at none against KnowUp's 2. KnowUp's advantage is iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. KnowUp sells 2 in-app purchases, starting at $2.99 per month. Stuudy asks for nothing beyond the download.

## The numbers

| Metric | KnowUp | Stuudy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 days | — |
| Size | 89 MB | 8 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Wenfeng Duan](https://appshunter.io/developer/1454244715) | [Yuta Nishimatsu](https://appshunter.io/developer/1480004995) |

## What reviewers say

### KnowUp

[App page](https://appshunter.io/ios/app/knowup-ai-flashcards-and-study/id6779905080)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| knowup monthly | $2.99 | per month |
| knowup annual | $24.99 | per year |


### Stuudy

[App page](https://appshunter.io/ios/app/stuudy/id6781896609)

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

**In-app purchases:** none


## Frequently asked questions

### Is KnowUp free?

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

### Is Stuudy free?

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

### Do KnowUp or Stuudy have ads?

Neither KnowUp nor Stuudy 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.*