Curly vs JSON Tools
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Curly
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.
- Automatic JSON detection
- Syntax highlighting
- Interactive JSON view
- Lightweight browser extension
- Boosts developer productivity
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Tired of squinting at messy blocks of raw JSON text in browser? It’s time to make your data readable. Curly is a lightweight, native browser extension. It automatically detects JSON content on any webpage and instantly transforms it into a perfectly structured, syntax-highlighted interactive view. Whether you are a backend developer debugging APIs or a frontend engineer inspecting data structures, Curly will significantly boost your productivity.
JSON Tools
This app provides developers with tools to view, edit, and compare JSON data. It offers hierarchical tree views, raw text editing with syntax highlighting, advanced search capabilities including JSONPath, and file operations for local and remote JSON files.
- Hierarchical tree view with expandable nodes
- Raw text editor with syntax highlighting
- Advanced search with JSONPath support
- Visual JSON file comparison
- Open JSON from device or URL
- Save and copy JSON content
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JSON Tools is a fast, modern JSON workbench built for developers who live inside APIs. WHAT YOU CAN DO • Explore large JSON files in tree or raw view with collapsible nodes • Edit with line-numbered syntax highlighting, Undo/Redo, and smart indent • Catch errors as you type with instant JSON validation and clear messages • Compare two JSON documents line by line with the diff engine • Generate strongly-typed Dart model classes in one tap • Spin up realistic mock data for unit tests in seconds • Visualize structure as a connected graph with Graph View BUILT FOR Flutter / Dart developers, backend engineers, QA engineers, and anyone who wrestles with JSON every day. EXPERIENCE Personalized Light and Dark themes, smooth animations, and an ad-free Premium option for focused work. Take control of your JSON—download JSON Tools now.
Screenshots
Verdict
The clearest difference is review sentiment: Curly at 100% against JSON Tools's 0%. Curly also leads on rating (5.0 vs 1.0) and in-app purchases (none vs 1). On price, ratings volume, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. JSON Tools sells 1 one-off in-app purchase. Curly asks for nothing beyond the download.
Curly holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews point the same way: 100% of Curly's written reviews are positive against 0% of JSON Tools's.
Curly ships an update monthly, JSON Tools fortnightly. The most recent releases landed on August 20, 2026 and September 21, 2026 respectively.
| Parameter | Curly | JSON Tools |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 1 | 1 |
| Update frequency | Monthly | Fortnightly — better |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 8 MB | 30 MB |
| Age rating | 17+ | 4+ |
| Developer | DropletApps | OKAN KAYCI |
Customer experience
Curly
JSON Tools
In-app purchases
Curly
No in-app purchases
JSON Tools
- JSON Tools Premium$4.99
