Jayson vs Json Genie
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Browse JSON files
- Table or syntax highlighted text view
- Tabbed interface
- Multiple splits for comparison
- Siri Shortcuts integration
- Share Sheet Actions
- URL schemes
Read full descriptionHide 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.
Json Genie
This app provides a fast and private way to view, edit, compare, and merge JSON files directly on your device. It offers a clear tree structure for browsing, powerful search capabilities, and formatting options without needing an account or cloud upload.
- View JSON in a tree structure
- Edit JSON data safely
- Compare JSON files
- Merge JSON files
- Search keys, values, and paths
- Format and minify JSON
- Private local workflow
Read full descriptionHide full description
**Open JSON. Know what’s inside.** Open, understand and edit JSON on your iPhone or iPad without working through a wall of raw text. Whether someone sent you a JSON file or you regularly work with API responses and configuration files, Json Genie makes it easy to explore your data, find what matters and make changes. No coding needed. No account required. Your JSON is processed on your device. **OPEN YOUR JSON, YOUR WAY** Open JSON and JSONC from: • Files on your device • Mail, shared files and other apps • Cloud storage apps • Pasted text • Web links and API URLs • Supported ZIP archives **EXPLORE WITHOUT GETTING LOST** Browse your file in a clear, structured view. Open nested sections and lists (JSON objects and arrays) one level at a time, then easily find your way back. Keep multiple files open in tabs and switch between them without reopening them. **EDIT WITHOUT THE FUSS** Change values in simple forms without manually managing commas, brackets or quotation marks. • Edit text, numbers, true/false values and null • Add, delete, clone, move and reorder entries • Work with objects, arrays and individual values • Copy and reuse data with paste history **FIND IT. SKIP THE SCROLL.** Search keys, values and paths across your file, then jump directly to matching results. Need a more precise search? Use filters such as: • id: 3 • game.id: 3 • city: "Austin" **SEE EXACTLY WHAT CHANGED** Compare two JSON files or open tabs. Inspect differences in objects, arrays and values with clear before-and-after details. Check changes directly on your device without uploading your JSON to an online comparison tool. **BRING YOUR FILES TOGETHER** Merge JSON files into one new result while keeping your originals unchanged. Review the merge summary, inspect the combined data, then save or share it. **SAVE IT THE WAY YOU NEED IT** Choose readable formatting for people or a compact file for sharing and other tools. • Pretty-print and beautify JSON • Minify JSON by removing unnecessary spacing • Sort keys alphabetically • View raw JSON text • Save or share JSON as text or as a file **YOUR JSON, PROCESSED LOCALLY** Opening, viewing, editing, searching, comparing, merging and formatting happen on your device. Your JSON content is not uploaded to our servers for these operations. No account required. You choose when to export or share your files. **FREE TO USE. OPTIONAL PREMIUM.** Start using Json Genie for free. Premium removes ads, expands file and tab limits, increases history and unlocks extra themes.
Screenshots
Verdict
The clearest difference is ads: Jayson at none against Json Genie's shown. Jayson also leads on ratings volume (425 vs 5) and chart position (#85 vs unranked). Json Genie's advantage is update cadence (every 10 days vs every 3 weeks) and iOS requirement (16.0 vs 26.0). On price, rating, in-app purchases and monetization model 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
Both are free to download. Jayson sells 1 one-off in-app purchase and Json Genie sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.5 for Jayson against 4.6 for Json Genie. That said, the two scores are not equally well evidenced: Jayson has 425 ratings behind it against 5, so its average is the more settled of the two.
Jayson ships an update every 3 weeks, Json Genie every 10 days. Both last shipped on October 13, 2026.
| Parameter | Jayson | Json Genie |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (425 ratings) | 4.6 (5 ratings) — better |
| Positive reviews | 80.7% of reviews | — |
| Number of ratings | 425 — better | 5 |
| Update frequency | Every 3 weeks | Every 10 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | #85 — better | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 41 MB | 58 MB |
| Age rating | 4+ | 4+ |
| Developer | Simon B. Støvring | Tommy Uytterhaegen |
Customer experience
Jayson
Json Genie
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 moreShow fewer
- 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 moreShow fewer
- Comment recognition in JSON files
- Plain text editor option
- Improved file size handling for large documents
- Better navigation controls on mobile devices
Json Genie
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Jayson
- Unlock Everything$4.99
Json Genie
- Json Genie Premium$3.99









