Comparison

OMessage vs JSON Editor

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

OMessage

Features
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OMessage is a simple and easy-to-use chat app designed for iOS, allowing you to interact with the your local AI service. With an iMessage-style interface, it provides a familiar and seamless chatting experience. Whether you need information, writing assistance, or just a casual chat, OMessage is here to help. Features: - Multimodal Model Support: Interact with different types of models, supporting text, image, and other input/output formats. - Reasoning Model Support: Engage in complex reasoning and analysis for intelligent conversations. - Message History Management: Easily view and manage your chat history to revisit past conversations. - Model Switching: Quickly switch between different models to meet your specific needs. Note: This app requires a self-hosted Ollama service to function. The icons and model names in the app are solely used to help users differentiate between different AI models and are not part of any commercial promotion.

About

JSON Editor

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Json Editor: Smart Json turns a wall of JSON into something you can actually read on a phone. The same document, three linked views. Edit in any of them and the other two follow — the text is always the source of truth, so nothing drifts out of sync. EDITOR • Syntax highlighting that re-tokenizes only what you typed, so it stays fast • Line-number gutter, wrap and font size controls • A punctuation bar above the keyboard: braces, brackets, quotes, true, false, null, indent, undo and redo • Invalid JSON gets a plain-language banner naming the problem, its line and its column. Tap Go to jump the caret there, or Fix to repair comments, trailing commas, single quotes and unquoted keys automatically TREE • A collapsible outline with indent guides, type badges and child counts • Search across keys and values, filter by type • Edit any node in place: rename, change type, reorder, duplicate, add, delete GRAPH • A tidy node-link diagram, left-to-right or top-to-bottom • Pinch to zoom, pan, tap a node to expand it, fit to screen • Tap a node to open an editor docked right underneath it — the graph edits as well as it browses • Expand all, expand to a depth, or expand one subtree • Export the graph as PNG or SVG FIND WHAT YOU NEED • One find bar in every view. Text search in the editor with match case and wrap-around; structural search in the tree and graph with scope and type filters, stepping through hits • JSONPath: type an expression and watch it evaluate live, tinting its matches in the editor, the tree and the graph at once. A documented subset of RFC 9535, filter expressions included COMPARE • Diff the open document against a file, the clipboard or a URL • Structural, not textual — reformatting is not a change • Changed subtrees are tinted in the graph, and array elements are paired by identity when they have one CONVERT • Preview your document as YAML, CSV, TOML or XML, each with a plain statement of what that format cannot carry DOCUMENT ACTIONS • Beautify, minify, sort keys, auto-fix • Escape and unescape a JSON string literal • Copy in, copy out, share, and a statistics breakdown • Undo and redo everything, with one history per document shared by every view GETTING JSON IN • Open files from iCloud Drive and Files, with proper open, save and rename • Start a document from the clipboard or from a URL. URL requests are a GET with your own headers, and the last ten are remembered; header values are stored in the keychain, not in plain preferences • A share extension accepts JSON from any app • JSON5 files open too, normalized to JSON with a banner saying what that cost • Imports are named after where they came from, like mydomain.com-users.json BUILT RIGHT • Native SwiftUI for iPhone and iPad, with full keyboard support • Light or dark, or pinned to whichever you prefer • A hand-written parser that preserves key order and keeps number literals exactly as written — no precision lost on a round trip • Works entirely offline. No account, no sign-in, no analytics, no data leaves your device SMART JSON PRO The app is free, and every feature computes and shows you its result for free. Pro is for keeping that result: • Extract JSONPath matches to a new document, plus query history and saved queries • Text diff, jump between changes, copy as a patch, choose the array identity field • Save, share or open a conversion to YAML, CSV, TOML or XML --- Terms of Use: https://mygems.app/term Privacy Policy: https://mygems.app/privacy

Screenshots

OMessage3 screens
JSON Editor4 screens

Verdict

The call

The clearest difference is iOS requirement: OMessage at 16.0 against JSON Editor's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

OMessage ships an update every 5 days, JSON Editor every 6 days. The most recent releases landed on October 2, 2026 and October 17, 2026 respectively.

Scorecard1 real difference Ā· 5 level
OMessage versus JSON Editor: the parameters behind the verdict, then further details
ParameterOMessageJSON Editor
PriceFreeFree
Update frequencyEvery 5 days — betterEvery 6 days
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better18.0
Further details — not scored
Size12 MB8 MB
Age rating4++4
Developer寰宇 éŖ†Hue Nguyen

In-app purchases

None

OMessage

No in-app purchases

None

JSON Editor

No in-app purchases

Questions

Is OMessage free?
OMessage is free to download, with no in-app purchases.
Is JSON Editor free?
JSON Editor is free to download, with no in-app purchases.
Do OMessage or JSON Editor have ads?
Neither OMessage nor JSON Editor shows ads.
Which is updated more often, OMessage or JSON Editor?
OMessage ships an update every 5 days, and JSON Editor every 6 days. Most recently, OMessage was updated on October 2, 2026 and JSON Editor on October 17, 2026.

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