Comparison

Jayson vs ONE Device

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

ONE Device

This application facilitates a connection between your wireless device and a cloud platform. It offers feedback during the activation process, ensuring seamless integration.

Highlights
  • Device-to-cloud connectivity
  • Activation process feedback
  • Wireless device integration
  • Cloud platform synchronization
Features
Read full description

ONE Connect bridges the gap between the device and the cloud platform providing connectivity feedback during the activation process

Screenshots

Jayson4 screens
ONE Device3 screens

Verdict

The call

The clearest difference is rating: ONE Device at 5.0 against Jayson's 4.5. ONE Device also leads on in-app purchases (none vs 1) and iOS requirement (13.0 vs 26.0). Jayson's advantage is ratings volume (425 vs 3) and chart position (#92 vs unranked). On price, update cadence, 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

Both are free to download. Jayson sells 1 one-off in-app purchase. ONE Device asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

ONE Device holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Jayson has 425 ratings behind it against 3, so its average is the more settled of the two.

UpkeepUpdate frequency

Jayson ships an update every 3 weeks, ONE Device monthly. The most recent releases landed on September 23, 2026 and September 6, 2026 respectively.

Scorecard6 real differences · 5 level
Jayson versus ONE Device: the parameters behind the verdict, then further details
ParameterJaysonONE Device
PriceFreeFree
Rating4.5 (425 ratings)5.0 (3 ratings) — better
Positive reviews80.7% of reviews
Number of ratings425 — better3
Update frequencyEvery 3 weeks — betterMonthly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#92 — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.013.0 — better
Further details — not scored
Size41 MB3 MB
Age rating4+4+
DeveloperSimon B. StøvringONE TECH, INC

Customer experience

Jayson

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

ONE Device

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

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

ONE Device

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Jayson

One-time1
  • Unlock Everything$4.99
None

ONE Device

No in-app purchases

Questions

Is Jayson free?
Jayson is free to download, with in-app purchases available.
Is ONE Device free?
ONE Device is free to download, with no in-app purchases.
Which has better reviews, Jayson or ONE Device?
ONE Device is rated higher. Jayson averages 4.5 out of 5 from 425 ratings, while ONE Device averages 5.0 from 3 ratings.
Do Jayson or ONE Device have ads?
Neither Jayson nor ONE Device shows ads.
Which is updated more often, Jayson or ONE Device?
Jayson ships an update every 3 weeks, and ONE Device monthly. Most recently, Jayson was updated on September 23, 2026 and ONE Device on September 6, 2026.

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