# JSON Prettify vs Structly

The clearest difference is ads: Structly at none against JSON Prettify's shown. Structly also leads on monetization model (free vs ad-supported). JSON Prettify's advantage is update cadence (every 5 days vs every 2 months). On price, rating, review sentiment and ratings volume there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for JSON Prettify against 5.0 for Structly. Both are backed by a comparable volume of ratings — 2 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

JSON Prettify ships an update every 5 days, Structly every 2 months. The most recent releases landed on September 29, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | JSON Prettify | Structly |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/json-prettify/id6737413797/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/structly-json-formatter/id6753774575/reviews) |
| Number of ratings | 2 | **3** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 5 days** | Every 2 months |
| Monetization | Ad-supported | **Free** |
| Size | 6 MB | 8 MB |
| Requires iOS | **16.6** | 17.6 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | +4 | 4+ |
| Developer | [Jean-Philippe DESCAMPS](https://appshunter.io/developer/334555645) | [Chen He](https://appshunter.io/developer/1843281784) |

## What reviewers say

### JSON Prettify

[App page](https://appshunter.io/ios/app/json-prettify/id6737413797)

Easily format and validate JSON data with a clean, intuitive interface. Get clear error messages for invalid JSON and switch to a compact view for efficient data exploration. Streamline your JSON workflow with this developer-friendly tool.

**Highlights:** Quick and clear JSON formatting, Detailed error messages for invalid JSON, Compact mode for compressed view, User-friendly interface, JSON validation

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

**In-app purchases:** none


### Structly

[App page](https://appshunter.io/ios/app/structly-json-formatter/id6753774575)

This tool enhances your browsing experience by transforming raw JSON data into clear, readable views directly within Safari. It offers effortless formatting, advanced search, and versatile export options, all while prioritizing user privacy with on-device operation and no data collection.

**Highlights:** Effortless JSON formatting, Syntax highlighting and collapsible sections, Line numbers for reference, Offline operation, Search keys and values, Execute JSON Path queries, Export to JSON, YAML, or CSV, Customizable themes

**Features:** Safari Extension, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is JSON Prettify free?

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

### Is Structly free?

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

### Which has better reviews, JSON Prettify or Structly?

JSON Prettify and Structly are both rated 5.0 out of 5 on the App Store, from 2 and 3 ratings respectively.

### Do JSON Prettify or Structly have ads?

JSON Prettify shows ads; Structly does not.

### Which is updated more often, JSON Prettify or Structly?

JSON Prettify ships an update every 5 days, and Structly every 2 months. Most recently, JSON Prettify was updated on September 29, 2026 and Structly on October 5, 2026.

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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.*