# CodexSyntax vs HelloSQL

The clearest difference is in-app purchases: HelloSQL at none against CodexSyntax's 4. CodexSyntax's advantage is iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. CodexSyntax sells 4 one-off in-app purchases. HelloSQL asks for nothing beyond the download.

## The numbers

| Metric | CodexSyntax | HelloSQL |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Every 2 weeks |
| Size | 28 MB | 6 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ZST](https://appshunter.io/developer/1274473128) | [Ryota Kumagawa](https://appshunter.io/developer/1097462228) |

## What reviewers say

### CodexSyntax

[App page](https://appshunter.io/ios/app/codexsyntax/id6752895210)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tip $1.99 | $1.99 | one-time |
| Tip $2.99 | $2.99 | one-time |
| Tip $4.99 | $4.99 | one-time |
| Tip $9.99 | $9.99 | one-time |


### HelloSQL

[App page](https://appshunter.io/ios/app/hellosql-learn-and-practice-sql/id6815083671)

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

**In-app purchases:** none


## Frequently asked questions

### Is CodexSyntax free?

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

### Is HelloSQL free?

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

### Do CodexSyntax or HelloSQL have ads?

Neither CodexSyntax nor HelloSQL 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.*