# SQLite vs Database Keys and Constraints

The clearest difference is in-app purchases: Database Keys and Constraints at none against SQLite's 2. Database Keys and Constraints also leads on iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. SQLite sells 2 one-off in-app purchases. Database Keys and Constraints asks for nothing beyond the download.

## The numbers

| Metric | SQLite | Database Keys and Constraints |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Size | 45 MB | 38 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jose Miguel Torres](https://appshunter.io/developer/1893742454) | [AFTW LLC](https://appshunter.io/developer/1886356149) |

## What reviewers say

### SQLite

[App page](https://appshunter.io/ios/app/sqlite-sql-practice/id6762306878)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium unlock | $12.99 | one-time |
| Premium unlock | $19.99 | one-time |


### 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 SQLite free?

SQLite 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 SQLite or Database Keys and Constraints have ads?

Neither SQLite 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.*