Jayson

Simon B. Støvring · Developer Tools

4.5 440 ratings Free

Independent analytics for this App Store listing. AppTracker is not affiliated with Simon B. Støvring.

View on App Store ↗

Chart standing · US

Top Grossing Developer Tools
#90
Best #46 ▼ 44
Top Free Developer Tools
#87
Best #53 ▼ 9

What changed · US

Listing changes AppTracker has observed for this app in this storefront — new versions, price moves, rating shifts, and store copy.

Oct 13, 2026
Rating ★ 4.51 → 4.52
Sep 20, 2026
Rating ★ 4.5 → 4.51
Sep 10, 2026
New version 1.5.2 → 1.5.3

Brings small optimizations for iOS 27.

Sep 10, 2026
Rating ★ 4.51 → 4.5
Sep 9, 2026
Rating ★ 4.5 → 4.51
Aug 31, 2026
Rating ★ 4.49 → 4.5
Aug 26, 2026
New version 1.4.2 → 1.5.2

Price & rating history · US

Reconstructed from the listing changes AppTracker has observed in this storefront. A field is charted once it has changed more than once, and each line starts at the value it moved from.

Average rating history over the observed period. 4.45 4.50 4.55 4.60 Aug 29 Sep 9 Sep 21 Oct 3 Oct 15

Average rating · ★ 4.52 now · 5 changes on record

Ratings breakdown · US

The star breakdown behind this app's rating in this storefront.

5★ 80% 354
4★ 5% 24
3★ 6% 26
2★ 2% 8
1★ 6% 28

In-app purchases · US

What this app sells inside itself, grouped by kind and priced for this storefront.

One-time purchases
Unlock Everything $4.99

Screenshots

Keywords this app targets

Search terms AppTracker associates with this app — estimates, not search volume. ❝ = in the app's title; a highlighted number is its current position for that term.

Similar apps

Competitors and close alternatives, as estimated by AppTracker.

About

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 · 1.5.3

Brings small optimizations for iOS 27.

Details

ReleasedFeb 2019
UpdatedOct 2021
Version1.5.3
Size29.8 MB
RequiresiOS 13.0 or later
Age rating4+
LanguagesDanish, English
PriceFree
Categories Developer Tools
Bundle IDdk.simonbs.Jayson