JSON Master vs SkillPilot
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
JSON Master
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JSON Master is a JSON viewer and editor for the things you actually do all day: find the value, copy its path, copy the branch, and work out what a field really contains. Every document is shown two ways, as a tree and as coloured source, and both are the same file. WHAT MAKES IT DIFFERENT - Every path is ready to paste, in whichever form you need it: dot, JSONPath, brackets, jq, Swift or JSON Pointer - The inspector explains what a value really is: Unix timestamps as dates, JWT tokens decoded, base64, ISO dates, string length, integers beyond 2^53, duplicate keys - Expand embedded JSON, the escaped string every webhook and log line contains, unwrapped in place - Syntax colour that holds even when the document does not parse, which is exactly when it helps - An untouched file is saved byte for byte as it arrived, and a broken one still opens with the line and column of the error ALSO INSIDE Format and minify, sort keys, remove empty values and duplicate keys, JSON Lines to array, JSONPath queries, document summary, structural compare, type generation for Swift, TypeScript and JSON Schema, JWT decoding, export to CSV. Designed like an amber monitor: warm near-black surfaces, phosphor text, monospaced throughout. Seven interface languages, switching without a restart. No account, no tracking, no analytics, no network access. Your documents never leave your device. Universal app for iPhone, iPad and Mac. LEGAL - Privacy Policy: https://vybgss.github.io/json-master-docs/privacy-policy.html - Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
SkillPilot
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SkillPilot is a discovery and monitoring client for open-source AI developer tools: agents, Claude skills, MCP servers, CLIs and repositories. It shows you what exists, what changed, and what needs attention, and it links every entry back to its source on GitHub. Find the right tool Browse a catalog organised into 12 categories, from Development, AI Agents and Automation to Marketing, Design, Security, Data and Research, RAG and Knowledge, LLM Ops and Token and Cost Optimization. Search by name or description, open a category to see its subcategory shelves, and tap any card for the owner, type, description, tags, a short README excerpt quoted from the project, and a direct link to the repository. See what is new The New tab surfaces a Daily Winner, the latest releases and the tools that are rising fastest this week, so you can check the ecosystem in a minute. Keep your stack healthy The Browse tab gives your monitored tools a single health score with tiles for updates, breaking changes and security issues, plus a list of priority alerts. My Skills lists every tool you track with its status, installed and latest version and an authority score out of 100. Open a tool to read its health summary and security posture, what changed between versions, a side by side version comparison and a recommended action. Act on alerts The Alerts inbox groups open alerts by severity (Critical, High, Medium, Low), names the alert type, and links to the evidence on GitHub. Mark an alert resolved or start a migration review from the same screen. Read-only by design SkillPilot never installs, runs or changes anything on your machine. It reads public data about open-source projects and presents it; every decision stays with you. Features - Catalog of open-source AI developer tools in 12 categories with search - Tool cards with owner, type, tags, README excerpt and repository link - Daily Winner, New Releases and Fast Rising shelves - Stack Health score with updates, breaking and security tiles - Monitored tools with status, version pair and authority score - Tool detail with Overview, What Changed, Compare and Impact - Alerts inbox with severity filters and evidence links - Works offline with bundled catalog data, refreshes from skillpilot.biz when online - Free, no account, no ads, no tracking, no data collection - iPhone and iPad, iOS 17 or later Catalog data comes from public GitHub repositories and package registries. Every entry names its owner and links to the original project. Rights holders can request removal of any entry at yacov@ygl.co.il. SkillPilot is made by YGL. The same catalog and alerts are available on the web at skillpilot.biz.
Screenshots
Verdict
The clearest difference is price: SkillPilot at Free against JSON Master's $3.99. On ads, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
SkillPilot is free to download; JSON Master costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | JSON Master | SkillPilot |
|---|---|---|
| Price | $3.99 | Free โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, Mac โ better | iPhone, iPad |
| Requires iOS | 18.0 | 17.0 โ better |
| Further details โ not scored | ||
| Size | 3 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Volodymyr Sichka | YGL LIVING WELL |
In-app purchases
JSON Master
No in-app purchases
SkillPilot
No in-app purchases









