Comparison

Jayson vs SwiftUI Companion

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

SwiftUI Companion

Features
Read full description

Welcome to SwiftUI Companion! Are you a SwiftUI developer looking for a quick and effortless way to preview system elements in action? Whether you're fine-tuning your UI or experimenting with system sounds, SwiftUI Companion is your go-to companion for SwiftUI development on iPhone and iPad. This powerful yet lightweight tool lets you: Hear System Sounds – Instantly play and preview system sound codes to find the perfect audio cue for your app. Visualize Shapes – Explore SwiftUI’s shape library with full customization—adjust borders, fills, gradients, and more. Preview Text Styles – See all system text sizes and formatting options to ensure your typography is pixel-perfect. Discover System Colors – Browse SwiftUI’s built-in color palette, including gradient variations, to match your app’s aesthetic. No more guessing how things will look or sound—SwiftUI Companion makes it effortless to explore SwiftUI’s built-in resources in a structured, interactive way. Whether you're a beginner learning the ropes or a pro refining your designs, this app saves time and inspires creativity. Download now and make SwiftUI development smoother, faster, and more intuitive than ever!

Screenshots

Jayson4 screens
SwiftUI Companion4 screens

Verdict

The call

The clearest difference is price: Jayson at Free against SwiftUI Companion's $0.99. Jayson also leads on chart position (#113 vs unranked). SwiftUI Companion's advantage is in-app purchases (none vs 1) and iOS requirement (17.0 vs 26.0). On ads 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

Jayson is free to download; SwiftUI Companion costs $0.99 up front. Jayson sells 1 one-off in-app purchase. SwiftUI Companion asks for nothing beyond the download.

Scorecard4 real differences · 7 level
Jayson versus SwiftUI Companion: the parameters behind the verdict, then further details
ParameterJaysonSwiftUI Companion
PriceFree — better$0.99
Rating4.5 (425 ratings) — better—
Positive reviews80.7% of reviews—
Number of ratings425 — better—
Update frequencyEvery 3 weeks—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
Best chart rank#113 — better—
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.017.0 — better
Further details — not scored
Size41 MB3 MB
Age rating4+4+
DeveloperSimon B. StøvringNishat Majid

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

SwiftUI Companion

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Jayson

One-time1
  • Unlock Everything$4.99
None

SwiftUI Companion

No in-app purchases

Questions

Is Jayson free?
Jayson is free to download, with in-app purchases available.
Is SwiftUI Companion free?
SwiftUI Companion costs $0.99, with no in-app purchases.
Do Jayson or SwiftUI Companion have ads?
Neither Jayson nor SwiftUI Companion shows ads.

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