Comparison

Jayson vs DetailsPro

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

Head to head
About

Jayson

This app allows you to view and edit JSON files directly on your device. It offers features like tabbed browsing, split-screen comparisons, and integration with Siri Shortcuts and the Share Sheet for easy JSON parsing and management.

Highlights
  • Browse JSON files
  • Table or syntax highlighted text view
  • Tabbed interface
  • Multiple splits for comparison
  • Siri Shortcuts integration
  • Share Sheet Actions
  • URL schemes
Features
Read full description

Jayson is a JSON viewer and editor for iPhone and iPad. Browse JSON as a structure, edit values, and save your changes back to the file. Whether you're inspecting an API response, checking a config file, or making a quick fix on the go, Jayson turns raw JSON into something you can actually read and change. BROWSE AND EDIT - Open JSON files stored on your device or in iCloud Drive. - Toggle between a structured table view and syntax highlighted text. - Add new values and keys, and save your changes back to the file. - Parse text or the contents of a URL from your clipboard into JSON. - Highlight a key from a child of an array to get a quick overview of your data. TABS, SPLITS, AND WINDOWS - Switch between files, or different objects in a single file, using tabs. - Compare JSON in a single file or across files using multiple splits. - Open multiple windows on the iPad. WORKS WITH SHORTCUTS Jayson integrates with Shortcuts, which comes in handy for debugging API calls, previewing JSON files, and building workflows around JSON. - Pass a response from Get Contents of URL to Jayson to see how it is structured. - Open JSON as a document you keep working on, or as a temporary preview. - Format JSON and hand the result to the next action, using spaces or tabs. FREE, WITH AN OPTIONAL UPGRADE Jayson's core functionality is free. Browsing, editing, saving, splits, Shortcuts, and working with up to two tabs at a time cost nothing. A one-time in-app purchase enables having more than two tabs open at once, switching between light and dark themes, and personalizing the app icon, accent color and type icons. One purchase, no subscription.

About

DetailsPro

A design tool for Apple developers to create SwiftUI interfaces visually without coding. It supports various SwiftUI views, modifiers, and SF Symbols, with options to export to Xcode and Swift Playgrounds. An optional premium upgrade offers advanced prototyping and templates.

Highlights
  • Visual SwiftUI view creation
  • Code-free design
  • Export to Xcode and Swift Playgrounds
  • SF Symbols integration
  • Prototyping tools (Premium)
  • Community templates
Features
Read full description

DetailsPro is a design tool made for Apple designers and SwiftUI. - Create with SwiftUI views like VStack, Text, Image, and more - Make real designs without writing any code - Export to Xcode, Swift Playgrounds, and more - Available free forever with unlimited files - Optionally upgrade to Premium for all tools and templates - Design from iPhone, iPad, Mac, and Apple Vision Pro - Browse SF Symbols categories - Test widget designs natively on your Home Screen - Preview designs live on a second device Features: - VStack, HStack, ZStack - Text, Images, Shapes - Intuitive Overlays, Backgrounds, and Masks - Dividers, Spacers - Grids, Scrolls - Visual Effect Blur Views - SF Symbols - Gradients - Maps - Frame, Padding modifiers - All Text modifiers like kerning, lineHeight, font, fontWeight, and more - Liquid Glass modifiers - Effects modifiers like colorMultiply, opacity, offset, rotate, and scale - Dark mode and light mode - Built-in size templates for iPhone, iPad, and other devices - Import and export as .detailspro files - Export to Swift Playgrounds - Export to Xcode as Swift files - Download community templates Templates: Kick start your next design update with built-in SwiftUI design templates and community templates that are being updated all the time. Save time and get straight to your idea without having to set up a full development environment. Split Mode: Check your design in Dark Mode and Light Mode more easily than ever by previewing both at the same time. Choose from System, Dark, Light, or Split Mode for your design environment and switch between them instantly. "...the tools you need to start designing an app in SwiftUI using just an iOS device." - 9to5Mac Your DetailsPro subscription will automatically renew unless you turn off auto-renew at least 24 hours before the current period ends. You can go to Settings > iTunes & App Store > Apple ID > Subscriptions to manage your membership. Your iTunes Account will be charged when the purchase is confirmed. Read more about our terms and conditions here: https://detailspro.app/terms Read more about our privacy policy here: https://detailspro.app/privacy

Screenshots

Jayson4 screens
DetailsPro4 screens

Verdict

The call

The clearest difference is update cadence: DetailsPro at every 5 days against Jayson's every 3 weeks. DetailsPro also leads on rating (4.8 vs 4.5) and device support (4 vs 2). On price, review sentiment, ratings volume 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Jayson sells 1 one-off in-app purchase and DetailsPro sells 3 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

DetailsPro holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 441 and 382 respectively. Written reviews split almost evenly too, at 81% and 81% positive.

UpkeepUpdate frequency

Jayson ships an update every 3 weeks, DetailsPro every 5 days. The most recent releases landed on October 21, 2026 and October 20, 2026 respectively.

Scorecard3 real differences · 8 level
Jayson versus DetailsPro: the parameters behind the verdict, then further details
ParameterJaysonDetailsPro
PriceFreeFree
Rating4.5 (441 ratings)4.8 (382 ratings) — better
Positive reviews80.7% of reviews81.2% of reviews — better
Number of ratings441 — better382
Update frequencyEvery 3 weeksEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
Best chart rank#90#80 — better
DevicesiPhone, iPadiPhone, iPad, Mac, Vision Pro — better
Requires iOS26.026.0
Further details — not scored
Size41 MB32 MB
Age rating4+4+
DeveloperSimon B. StøvringFun Focus Software LLC

Customer experience

Jayson

All ratings425 ratings
Positive85.4%
Neutral6.1%
Negative8.5%
Written reviews83 reviews
Positive80.7%
Neutral7.2%
Negative12.0%

DetailsPro

All ratings382 ratings
Positive93.5%
Neutral2.4%
Negative4.2%
Written reviews101 reviews
Positive81.2%
Neutral8.9%
Negative9.9%

User reviews

Jayson

From 441 App Store ratings

What we love

  • 👍 Elegant and intuitive JSON editing interface
  • 🎯 Perfect for FNF mod development and updates
  • 📱 Excellent iOS implementation with native feel
  • 🔧 Powerful JSON manipulation capabilities
  • ⚡ Great Shortcuts and URL scheme integration

Room to improve

  • 🐛 Frequent crashes and instability issues
  • 🔋 High battery consumption and device heating
  • ❌ Missing search functionality
  • 📵 Safari browser support issues
  • 🔒 Limited free features, paywall for advanced options

DetailsPro

From 382 App Store ratings

What we love

  • 👍 Great UI and features
  • 🚀 Intuitive and easy to use
  • 💡 Helpful for learning SwiftUI
  • 👍 Fantastic prototyping tool
  • 👍 Saves time in design process

Room to improve

  • 🐛 Crashes and freezes
  • 🐛 Bugs and issues with saving/loading designs
  • 🔧 UI needs improvement, outdated
  • 🔧 Limited functionality compared to other design tools

Bugs and requests

Jayson

Reported bugs

6 issues
  • App crashes when opening large JSON files (89MB+)
  • Crashes on regular use despite functionality
  • Device freezing for extended periods
  • Safari compatibility broken in recent updates
  • Navigation back through JSON structure is unreliable
Show 1 more
  • Accidental file exit when attempting to navigate

Requested features

9 requests
  • Search/find functionality within files
  • JSON editing and modification capabilities
  • XML format support
  • Split-view for comparing different arrays
  • Export functionality for edited JSON
Show 4 more
  • Comment recognition in JSON files
  • Plain text editor option
  • Improved file size handling for large documents
  • Better navigation controls on mobile devices

DetailsPro

Reported bugs

4 issues
  • Crashes when modifying certain properties
  • Designs disappearing or reverting unexpectedly
  • Compatibility issues on M1 Macs
  • Blurry text rendering on some devices

Requested features

5 requests
  • Support for more UI elements like text fields
  • Integration with GitHub and other tools
  • More examples and community designs
  • Ability to create reusable components
  • Support for additional SwiftUI features

In-app purchases

1 purchases

Jayson

One-time1
  • Unlock Everything$4.99
3 purchases

DetailsPro

Subscriptions2
  • Premium Monthly$5.991 Month
  • Premium Yearly$59.991 Year
One-time1
  • One-Time Purchase$129.00

Questions

Is Jayson free?
Jayson is free to download, with in-app purchases available.
Is DetailsPro free?
DetailsPro is free to download, with in-app purchases available.
Which has better reviews, Jayson or DetailsPro?
DetailsPro is rated higher. Jayson averages 4.5 out of 5 from 441 ratings, while DetailsPro averages 4.8 from 382 ratings.
Do Jayson or DetailsPro have ads?
Neither Jayson nor DetailsPro shows ads.
Which is updated more often, Jayson or DetailsPro?
Jayson ships an update every 3 weeks, and DetailsPro every 5 days. Most recently, Jayson was updated on October 21, 2026 and DetailsPro on October 20, 2026.
Which is more popular, Jayson or DetailsPro?
Jayson currently peaks at #90 in the App Store charts, and DetailsPro at #80. Chart position reflects recent download velocity rather than total install base.

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