# JSON Tree vs Curly

The clearest difference is review sentiment: Curly at 100% against JSON Tree's 0%. Curly also leads on price (Free vs $2.99). JSON Tree's advantage is ads (none vs shown). On update cadence, in-app purchases, device support and iOS requirement there is nothing between them.

Curly is free to download; JSON Tree costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

JSON Tree ships an update every 3 weeks, Curly monthly. The most recent releases landed on October 16, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | JSON Tree | Curly |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/curly-json-viewer-and-formatter/id6756542155/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Paid | **Ad-supported** |
| Size | 1 MB | 8 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [金攀 虞](https://appshunter.io/developer/1674729630) | [DropletApps](https://appshunter.io/developer/1710267424) |

## What reviewers say

### JSON Tree

[App page](https://appshunter.io/ios/app/json-tree/id6702017445)

This app provides a lightweight way to view and format JSON data. It offers features like collapsing nodes, exporting type declarations for various languages, and handling large files efficiently with lazy loading. Seamless system integration and customizable themes enhance the user experience.

**Highlights:** JSON tree structure preview, Export type declarations (Java, TS, Go), Collapse and expand nodes, Lazy loading for large files, Smart copying of JSON objects, Drag and drop support, Customizable themes and font sizes

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

**In-app purchases:** none


### 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 JSON Tree free?

JSON Tree costs $2.99, with no in-app purchases.

### Is Curly free?

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

### Do JSON Tree or Curly have ads?

Curly shows ads; JSON Tree does not.

### Which is updated more often, JSON Tree or Curly?

JSON Tree ships an update every 3 weeks, and Curly monthly. Most recently, JSON Tree was updated on October 16, 2026 and Curly on September 26, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*