DevTools+ vs Shelly Dev Kit
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
DevTools+
A comprehensive suite of developer tools for mobile devices. Quickly format, convert, decode, and test code with a vast collection of utilities. Designed for efficient local processing with no account required.
- JSON formatter, validator, and converter
- API tester with REST, GraphQL, and cURL support
- Regex tester and highlighter
- JWT decoder and analysis
- Base64 encoder/decoder
- Timestamp and timezone conversion
- Local-first data processing
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496 developer tools, ready on iPhone and iPad. DevTools+ puts everyday code utilities in one searchable app. Format JSON, test APIs, inspect regex, decode JWTs, encode Base64, generate UUIDs, convert timestamps, format SQL, and handle hundreds of other development tasks without jumping between random websites. FIND THE RIGHT TOOL FAST - Search all 496 tools across 29 categories - Pin favorites and reopen recent tools - Start with practical examples - Copy and share results - Keep supported history, snippets, and API work organized FORMAT AND CONVERT - JSON formatter, validator, minifier, tree view, sort, and escape - JSON to YAML, CSV, XML, TypeScript, and Java - XML, YAML, TOML, CSV, Markdown, SQL, and text utilities DECODE AND INSPECT - JWT decoder and analysis tools - Base64 encoder and decoder - URL, HTML, Unicode, hexadecimal, and character encoding tools - Hash, HMAC, password, certificate, header, and security helpers - Timestamp, timezone, cron, MIME type, port, and HTTP status references BUILD AND TEST - API tester and REST, GraphQL, cURL, header, and WebSocket helpers - Regex tester, match highlighter, replace, and reference tools - UUID, random data, mock payload, barcode, and QR generators - Git, CSS, React Native, testing, documentation, file, and log utilities LOCAL-FIRST BY DESIGN Most tools process directly on your device. Tools that need a network connection are clearly identified. Nothing you enter is sent anywhere unless the selected tool requires a network request. NO ACCOUNT REQUIRED Open the app and start working. A useful selection of tools is free. DevTools+ Pro unlocks the complete toolkit and removes ads. Built for developers, QA engineers, API testers, students, and technical teams who want a focused utility on their phone. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Shelly Dev Kit
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Shelly DevKit is an independent developer's companion for Shelly smart-home devices. It is not affiliated with, endorsed by or connected to Allterco Robotics or the Shelly brand. Log in with your own Shelly Cloud account, on Shelly's own login page, and get a transparent, developer-grade view of your devices. Every tap shows the HTTP call behind it, and any action can become an Apple Shortcut that runs from Siri, Spotlight or the Shortcuts app while this app stays closed. DEVICES โข Live inventory of your cloud-connected Gen1, Gen2+ and BLU devices, grouped by room โข Switch, cover and light controls, sensor readings, and real-time status over WebSocket โข "View API call" on any control shows the exact request and response API EXPLORER โข Documented contracts for OAuth, inventory, control and real-time events, plus the Gen1 REST and Gen2+ RPC local APIs โข Try it: run allow-listed calls against your own devices and inspect the raw response โข History of your last 50 calls; copy any call as cURL, Swift or JavaScript with the token masked BUILD โข Compose multi-step recipes: read a value, branch on it, wait, show a result or send a raw request โข Test-run a recipe inside the app before exporting it โข Export it as an App Intent: it appears in Shortcuts and Spotlight and can be run with a Siri phrase PRIVACY BY DESIGN โข Your Shelly password is only ever typed into Shelly's page; the app keeps the resulting token in the iOS Keychain โข No account with us, no backend of ours, no tracking โข Analytics can be switched off in Settings FREE AND PRO Everything above is free, including composing and test-running recipes. One thing needs Shelly DevKit Pro, an auto-renewable subscription: exporting recipes to the Shortcuts app, with Siri phrases, Spotlight tiles and unlimited saved recipes. Pro is offered as a monthly or a yearly plan, and the price is shown in the app before you subscribe. Payment is charged to your Apple ID account at confirmation of purchase. The subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours before the end of that period. You can manage and cancel your subscriptions in your App Store account settings after purchase. Terms of Use: https://shellydevkit.sydcup.com/terms/ Privacy Policy: https://shellydevkit.sydcup.com/privacy/ Requires a Shelly Cloud account and cloud-connected Shelly devices. "Shelly" is a trademark of its owner, used here only to describe compatibility.
Screenshots
Verdict
The clearest difference is device support: DevTools+ at 3 against Shelly Dev Kit's 1. DevTools+ also leads on iOS requirement (15.1 vs 17.0). On price, update cadence, ads and in-app purchases 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
Both are free to download. DevTools+ sells 2 in-app purchases, starting at $1.99 per month and Shelly Dev Kit sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
DevTools+ ships an update every 11 days, Shelly Dev Kit every 10 days. The most recent releases landed on November 9, 2026 and November 6, 2026 respectively.
| Parameter | DevTools+ | Shelly Dev Kit |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | โ |
| Update frequency | Every 11 days | Every 10 days โ better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | โ |
| Devices | iPhone, iPad, iPod โ better | iPhone |
| Requires iOS | 15.1 โ better | 17.0 |
| Further details โ not scored | ||
| Size | 57 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Tosh Labs Private Limited | Sydcup OU |
In-app purchases
DevTools+
- Pro Monthly$1.991 Month
- Pro Annual$19.991 Year
Shelly Dev Kit
- Shelly Dev Kit Monthly$9.991 Month
- Shelly Dev Kit Yearly$79.991 Year









