# StudyArcade vs Database Keys and Constraints

The clearest difference is in-app purchases: Database Keys and Constraints at none against StudyArcade's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. StudyArcade sells 1 in-app purchase, starting at $6.99 per month. Database Keys and Constraints asks for nothing beyond the download.

## The numbers

| Metric | StudyArcade | Database Keys and Constraints |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/studyarcade-study-games/id6759309341/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | — |
| Monetization | Freemium | — |
| Size | 48 MB | 38 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [Archibald Soren Villiers Ingram](https://appshunter.io/developer/1851617028) | [AFTW LLC](https://appshunter.io/developer/1886356149) |

## What reviewers say

### StudyArcade

[App page](https://appshunter.io/ios/app/studyarcade-study-games/id6759309341)

Transform your study materials into engaging games with AI. Simply paste your content, choose a game mode, and begin learning instantly. Track your progress with mastery levels and XP, and share your creations with friends.

**Highlights:** AI-powered game creation, Multiple game modes, Progress tracking, XP progression and leaderboards, Shareable games, Daily challenges

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $6.99 | per month |


### Database Keys and Constraints

[App page](https://appshunter.io/ios/app/database-keys-and-constraints/id6773622183)

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

**In-app purchases:** none


## Frequently asked questions

### Is StudyArcade free?

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

### Is Database Keys and Constraints free?

Database Keys and Constraints is free to download, with no in-app purchases.

### Do StudyArcade or Database Keys and Constraints have ads?

Neither StudyArcade nor Database Keys and Constraints 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.*