Comparison

JSON Tools vs Advanced JSON Viewer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

JSON Tools

A comprehensive toolkit for developers to visualize, validate, convert, and generate code from JSON data. It offers features like interactive tree views, schema generation, and code export for multiple programming languages.

Highlights
  • Interactive Tree View and JSONPath querying
  • Convert JSON to XML, CSV, YAML, and more
  • Generate type-safe model classes for multiple languages
  • Auto-generate JSON Schema for validation
  • Dedicated JSON syntax keyboard overlay
  • Background processing for large datasets
Features
Read full description

A complete JSON viewer, formatter, editor, validator and converter for iPhone and iPad. Open JSON files, inspect complex data, format and edit content, validate schemas, compare documents, convert between formats and generate model code from one focused developer tool. VIEW AND EXPLORE JSON • Browse JSON using an interactive Tree View • Inspect arrays using Table View • Query data with JSONPath • Search and navigate complex documents • Work with multiple files using tabs FORMAT AND EDIT • Format and prettify JSON • Minify JSON instantly • Find and replace • Syntax highlighting with line numbers • Open JSON files directly from Files, Mail, Safari and other apps VALIDATE JSON • Validate JSON syntax • Validate documents against JSON Schema • Generate JSON Schema from existing JSON • See validation errors while you work CONVERT JSON Convert JSON to: • YAML • XML • CSV • TSV • TOML • HTML • Markdown • Base64 • TOON GENERATE CODE Generate model classes for: • Swift • Kotlin • TypeScript • C# • Java • Python • Dart COMPARE JSON Compare two JSON documents side by side and quickly identify added, removed and changed values, including differences inside nested objects. BUILT FOR DEVELOPERS JSON Tools is designed for inspecting API responses, working with configuration files, debugging structured data, validating payloads and converting JSON while away from your desktop. Your privacy matters. JSON Tools does not collect your data.

About

Advanced JSON Viewer

This tool enhances JSON data viewing and editing within Safari and on your device. It offers beautiful formatting, syntax highlighting, and an interactive editor for efficient JSON management.

Highlights
  • Open and save JSON files
  • Beautiful JSON formatting
  • Syntax highlighting
  • Interactive editor
  • Light & dark modes
  • Error detection
Features
Read full description

Advanced JSON Viewer transforms raw JSON data into an elegant, interactive viewing experience right in Safari and now supports opening and saving JSON files directly from your device. Key Features: • Open JSON Files: Open and view JSON files from your device with powerful formatting • Save JSON Files: Edit and save your JSON data directly to your device • Beautiful JSON Formatting: Instantly transforms unformatted JSON into a clean, readable format • Syntax Highlighting: Makes JSON structure easily readable with color-coded elements • Light & Dark Modes: Automatically switches between themes based on your system preferences • Customizable Themes: Choose from a wide selection of professional color schemes • Interactive Editor: Edit JSON directly in the browser with the powerful Ace editor • Settings Toolbar: Quick access to all viewing preferences in one convenient panel • Adjustable Settings: Customize font size, tab width, and other viewing preferences • Invisible Characters: Option to display invisible characters for precise editing • Fast & Efficient: Works instantly on any JSON page or file without slowing down your experience • Error Detection: Highlights JSON syntax errors as you type • Toggle Views: Switch between raw and formatted views with a single click Perfect for developers, QA engineers, API testers, and anyone who works with JSON data. Advanced JSON Viewer makes reading, editing, and saving JSON in Safari and local files a delightful experience. Built with attention to detail and performance, this app seamlessly enhances your JSON workflow whether you're browsing API responses online or examining and editing local configuration files. Available as a universal purchase - buy once and use it on Mac, iPhone, iPad, and Vision Pro.

Screenshots

JSON Tools4 screens
Advanced JSON Viewer4 screens

Verdict

The call

The clearest difference is review sentiment: Advanced JSON Viewer at 40% against JSON Tools's 0%. JSON Tools's advantage is update cadence (every 2 weeks vs every 6 weeks) and chart position (#37 vs #191). On ads, in-app purchases, monetization model 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

CostPrice · In-app purchases · Ads · Monetization

JSON Tools costs $0.99 and Advanced JSON Viewer $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

JSON Tools ships an update every 2 weeks, Advanced JSON Viewer every 6 weeks. The most recent releases landed on October 6, 2026 and October 10, 2026 respectively.

Scorecard4 real differences · 7 level
JSON Tools versus Advanced JSON Viewer: the parameters behind the verdict, then further details
ParameterJSON ToolsAdvanced JSON Viewer
Price$0.99 — better$1.99
Rating—3.3 (3 ratings) — better
Positive reviews0.0% of reviews40.0% of reviews — better
Number of ratings—3 — better
Update frequencyEvery 2 weeks — betterEvery 6 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank#37 — better#191
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS15.615.0 — better
Further details — not scored
Size30 MB5 MB
Age rating4+4+
DeveloperMohammed AadhilAcrogenesis LLC

Customer experience

JSON Tools

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Advanced JSON Viewer

All ratings3 ratings
Positive33.3%
Neutral33.3%
Negative33.3%
Written reviews5 reviews
Positive40.0%
Neutral20.0%
Negative40.0%

In-app purchases

None

JSON Tools

No in-app purchases

None

Advanced JSON Viewer

No in-app purchases

Questions

Is JSON Tools free?
JSON Tools costs $0.99, with no in-app purchases.
Is Advanced JSON Viewer free?
Advanced JSON Viewer costs $1.99, with no in-app purchases.
Do JSON Tools or Advanced JSON Viewer have ads?
Neither JSON Tools nor Advanced JSON Viewer shows ads.
Which is updated more often, JSON Tools or Advanced JSON Viewer?
JSON Tools ships an update every 2 weeks, and Advanced JSON Viewer every 6 weeks. Most recently, JSON Tools was updated on October 6, 2026 and Advanced JSON Viewer on October 10, 2026.
Which is more popular, JSON Tools or Advanced JSON Viewer?
JSON Tools currently peaks at #37 in the App Store charts, and Advanced JSON Viewer at #191. Chart position reflects recent download velocity rather than total install base.

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