# Structly vs Curly

The clearest difference is in-app purchases: Curly at none against Structly's 3. Curly also leads on rating (5.0 vs 4.8) and iOS requirement (15.0 vs 17.6). Structly's advantage is ads (none vs shown) and ratings volume (4 vs 1). On price, review sentiment, update cadence and device support there is nothing between them.

Both are free to download. Structly sells 3 one-off in-app purchases. Curly asks for nothing beyond the download.

Curly holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 4 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 14, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Structly | Curly |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (4 ratings)](https://appshunter.io/ios/app/structly-json-formatter/id6753774575/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/curly-json-viewer-and-formatter/id6756542155/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Monthly | Monthly |
| Monetization | **Free** | Ad-supported |
| Size | 10 MB | 8 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Chen He](https://appshunter.io/developer/1843281784) | [DropletApps](https://appshunter.io/developer/1710267424) |

## What reviewers say

### 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 (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Medium Tip | $2.99 | one-time |
| Large Tip | $4.99 | one-time |


### Curly

[App page](https://appshunter.io/ios/app/curly-json-viewer-and-formatter/id6756542155)

This browser extension automatically formats and highlights raw JSON text on webpages, making it instantly readable and interactive. It's designed to boost productivity for developers by simplifying data inspection and API debugging.

**Highlights:** Automatic JSON detection, Syntax highlighting, Interactive JSON view, Lightweight browser extension, Boosts developer productivity

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

**In-app purchases:** none


## Frequently asked questions

### Is Structly free?

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

### Is Curly free?

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

### Which has better reviews, Structly or Curly?

Curly is rated higher. Structly averages 4.8 out of 5 from 4 ratings, while Curly averages 5.0 from 1 ratings.

### Do Structly or Curly have ads?

Curly shows ads; Structly does not.

### Which is updated more often, Structly or Curly?

Structly ships an update monthly, and Curly monthly. Most recently, Structly was updated on October 14, 2026 and Curly on September 26, 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.*