Jayson App Icon

Jayson

Developer Tools • Simon B. Støvring
4+ v1.5.3 Recorded price: Free App Store →
★★★★★
★★★★★
(445 App Store ratings)
🏆 Best: #4 Top Grossing (NZL)
IPA Analysis
Technical Specs
Bundle ID dk.simonbs.Jayson
Version 1.5.3
App Store Size 40.76 MB
Minimum iOS 26.0
Devices iPhone, iPad, iPod touch
Catalog release date 2019-02-02
Latest recorded version date 2026-09-10
Features & Support
Advisory 4+
Languages (1)
EN
Top In App Purchases
No In App Purchases Listed

Preview

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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.

What's New

Version 1.5.3 2026-09-10
Brings small optimizations for iOS 27.

Technical Analysis

Package Overview Package analysis available
Bundle ID dk.simonbs.Jayson
Current Version 1.5.3
Minimum iOS 26.0
Package Size App Store Size
Package Metadata 1 / 20 version records
JaysonKit dk.simonbs.JaysonKit
v1.4.2iOS 13.0+1.95 MB
4.5 / 5.0 (376 ratings)

Developer Information

Known Version Records

1 version record with stored package metadata • 20 known version records

Stored metadata does not guarantee a package is currently available to download.

Details Version / IDs Version date Action
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App Store ID: 891121089 Unknown Request Version
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22.07 MB
v1.4.2
App Store ID: 844711175Build: 86
2021-10-15 10:12:34 Get Version
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