JSON Master vs Spunk Gauge
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/
Spunk Gauge
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Spunk Gauge is a live dashboard for the computers you run - render boxes, AI rigs, home servers, workstations. See GPU, CPU and memory load, temperatures and power for your Windows, Linux and Mac machines on one screen. FINDS YOUR COMPUTERS Spunk Gauge looks around your local network for machines that accept SSH logins and lists them. Tap one, enter its login (password or SSH key) and it is added. You can also add any computer by address. EVERYTHING AT A GLANCE - A card per computer with round gauges for every GPU, the CPU and memory - GPU temperature, power draw and memory use (NVIDIA GPUs via nvidia-smi) - Fleet summary: machines online, total GPU power, hottest machine, average load - A five-minute temperature chart for the whole fleet HEAT ALERTS Cards turn amber at the warning temperature and red at the kill level, with a banner you can dismiss, so a machine running too hot stands out straight away. NOTHING TO INSTALL The app reads standard system tools over SSH. No agent or server software is needed on the machines you watch. PRIVATE No account, no ads, no tracking. Your computer list stays on your device and logins are kept in the Keychain. Connections go straight from your device to your own computers. Try it first: tap "Try the demo" to see five sample computers with live-moving values.
Screenshots
Verdict
JSON Master and Spunk Gauge are too close to call on the numbers: across 5 compared parameters โ price, ads, in-app purchases and device support among them โ neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | JSON Master | Spunk Gauge |
|---|---|---|
| Price | Free | Free |
| 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 | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Volodymyr Sichka | EYIMOFE PREST |
In-app purchases
JSON Master
No in-app purchases
Spunk Gauge
No in-app purchases









