Structly vs Curly
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Structly
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.
- 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
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Structly makes JSON easy to read, in its own native viewer on iPhone, iPad and Mac, and right inside Safari. A NATIVE JSON VIEWER • Open files, paste text, or pick up where you left off with recent documents • A clear tree with syntax colors, item counts and indentation guides • Table view turns lists of objects, such as API results, into sortable columns • Source view with syntax highlighting • Numbers keep their exact spelling, even huge integers and precise decimals FIND AND UNDERSTAND • Search keys and values with highlighted matches, or show only the matches • Jump straight to a path such as $.users[0].name • The inspector shows readable dates for Unix timestamps and ISO 8601 dates, decodes URL and Base64 strings, and opens links • Copy a value, key or JSON path with one tap EXPORT YOUR WAY • 2 or 4 spaces, tabs or minified, with optional sorted keys • Save to Files or copy to the clipboard IN SAFARI • Formats JSON pages automatically, with search, JSON Path queries and themes • Export to JSON, YAML or CSV • Send any JSON page to the Structly app with one tap SHARE SHEET • "View in Structly" opens JSON from Files, Mail and other apps right in the share sheet PRIVATE BY DESIGN • No account, no ads, no tracking and no data collection • Everything happens on your device. Recent documents never leave it, and you can turn them off Built for developers, API testers and anyone who works with JSON.
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.
Screenshots
Verdict
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.
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. 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.
| Parameter | Structly | Curly |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (4 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 4 — better | 1 |
| Update frequency | Monthly | Monthly |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 17.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 10 MB | 8 MB |
| Age rating | 4+ | 17+ |
| Developer | Chen He | DropletApps |
Customer experience
Structly
Curly
In-app purchases
Structly
- Small Tip$0.99
- Medium Tip$2.99
- Large Tip$4.99
Curly
No in-app purchases









