# SQLlearn vs Entity Relationship Concepts

The clearest difference is in-app purchases: Entity Relationship Concepts at none against SQLlearn's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. SQLlearn sells 1 one-off in-app purchase. Entity Relationship Concepts asks for nothing beyond the download.

## The numbers

| Metric | SQLlearn | Entity Relationship Concepts |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/sqllearn/id6762401475/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Monetization | Free with in-app purchases | — |
| Size | 9 MB | 38 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Eduardo Moura](https://appshunter.io/developer/1894038718) | [AFTW LLC](https://appshunter.io/developer/1886356149) |

## What reviewers say

### SQLlearn

[App page](https://appshunter.io/ios/app/sqllearn/id6762401475)

Master SQL with bite-sized lessons, real-world datasets, and instant feedback. This app offers hands-on challenges and spaced repetition for effective learning, all available offline on your mobile device.

**Highlights:** Bite-sized learning modules, Real datasets for practice, Instant query execution, Progressive hints, Spaced-repetition review, Schema explorer

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Pro | $4.99 | one-time |


### Entity Relationship Concepts

[App page](https://appshunter.io/ios/app/entity-relationship-concepts/id6773765964)

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

**In-app purchases:** none


## Frequently asked questions

### Is SQLlearn free?

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

### Is Entity Relationship Concepts free?

Entity Relationship Concepts is free to download, with no in-app purchases.

### Do SQLlearn or Entity Relationship Concepts have ads?

Neither SQLlearn nor Entity Relationship Concepts 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.*