# System Designer vs JSON Formatter

The clearest difference is review sentiment: System Designer at 78% against JSON Formatter's 0%. System Designer also leads on rating (4.4 vs 3.5) and ratings volume (17 vs 4). JSON Formatter's advantage is iOS requirement (11.2 vs 15.6). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

System Designer holds the better App Store score, 4.4 against 3.5. Both are backed by a comparable volume of ratings — 17 and 4 respectively. Written reviews point the same way: 78% of System Designer's written reviews are positive against 0% of JSON Formatter's.

## The numbers

| Metric | System Designer | JSON Formatter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (17 ratings)](https://appshunter.io/ios/app/system-designer/id1132983280/reviews)** | [3.5 (4 ratings)](https://appshunter.io/ios/app/json-formatter/id1422163030/reviews) |
| Number of ratings | **17** | 4 |
| Positive reviews | **77.8% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | — |
| Monetization | Free | Free |
| Size | 7 MB | 9 MB |
| Requires iOS | 15.6 | **11.2** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Erwan Carriou](https://appshunter.io/developer/1102494853) | [Robert Surrette](https://appshunter.io/developer/1275141689) |

## What reviewers say

### System Designer

[App page](https://appshunter.io/ios/app/system-designer/id1132983280)

Design complex systems using a low-code platform that leverages UML standards. Generate code skeletons and manage components graphically. Run and test your system with dynamic type checking.

**Highlights:** UML-based system modeling, Code skeleton generation, Graphical component creation, MSON format for model definition, Dynamic type checking, Cross-device synchronization via GitHub

**Features:** macOS Compatibility

**In-app purchases:** none


### JSON Formatter

[App page](https://appshunter.io/ios/app/json-formatter/id1422163030)

This utility helps you format and view JSON strings with clear, readable indentation. It offers both light and dark themes for a comfortable viewing experience.

**Highlights:** Pretty print JSON, Readable indentation, Light mode, Dark mode

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is System Designer free?

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

### Is JSON Formatter free?

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

### Which has better reviews, System Designer or JSON Formatter?

System Designer is rated higher. System Designer averages 4.4 out of 5 from 17 ratings, while JSON Formatter averages 3.5 from 4 ratings.

### Do System Designer or JSON Formatter have ads?

Neither System Designer nor JSON Formatter 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.*