# ecode10 Database vs Database Keys and Constraints

The clearest difference is in-app purchases: Database Keys and Constraints at none against ecode10 Database's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ecode10 Database sells 1 one-off in-app purchase. Database Keys and Constraints asks for nothing beyond the download.

## The numbers

| Metric | ecode10 Database | Database Keys and Constraints |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ecode10-database/id1661473843/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Monetization | Free | — |
| Size | 4 MB | 38 MB |
| Requires iOS | 16.2 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mauricio Junior](https://appshunter.io/developer/382324932) | [AFTW LLC](https://appshunter.io/developer/1886356149) |

## What reviewers say

### ecode10 Database

[App page](https://appshunter.io/ios/app/ecode10-database/id1661473843)

Learn database concepts step-by-step with practical, hands-on lessons. This course covers SQL Server, Azure Data Studio, and essential SQL commands. Downloadable videos allow for offline learning.

**Highlights:** Step-by-step database learning, Focus on SQL Server, Practical command demonstrations, Offline video access, Downloadable video lessons, Challenge Based Learning (CBL)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Database course practice | $29.99 | 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 ecode10 Database free?

ecode10 Database 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 ecode10 Database or Database Keys and Constraints have ads?

Neither ecode10 Database 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.*