Comparison

Web DevTools+ vs Shelly Dev Kit

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

Head to head
About

Web DevTools+

Inspect and edit web page elements with a DOM inspector. Analyze CSS, test rendering and media queries, and view network assets. Includes SEO, storage, device info, and accessibility tools.

Highlights
  • DOM inspector and editor
  • CSS analysis and quick tools
  • Rendering and media query emulation
  • Network asset viewer
  • SEO and meta tag inspection
  • Storage management
  • Accessibility audits
Features
Read full description

- Elements: A powerful syntax-highlighted DOM inspector and editor allows you to edit any page. - CSS Quick tools: Disabled CSS, background images, outline overflow issues, z-index and more - CSS Overview: Get a detailed look into the CSS on the page, stylesheets, colors, fonts and media queries - Rendering Tests: Emulate vision deficiencies such as color blindness, blurred version. Hide images to evaluate structure and fallback UX. Disabled modern image file formats such as AVIF and JPEG XL to test fallback UX for other/older browsers - Media query tests: Emulate how the page looks with print styles, prefers color-scheme, and prefers-contrast media queries. - Network - View all the assets on a page, tap on one to see info such as MIME-type, file-size, transfer times, Source allows you to see code for text-based assets with syntax highlighting, copy to clipboard and format options - SEO & meta: See meta tags such as title, descriptions, icons, Open Graph tags including previews of the images - Storage: with options to view or delete cookies, localStorage and Session storage and a detailed Web Manifest viewer. - Detailed Device Info panel with UserAgent, display and screen resolution, network speeds, connection type, ISP and more. - Accessibility audits, info and debug tools (ARIA inspect and img alt inspect). - Tools: one-tap quick audits from 8 popular, free services (Lighthouse, HTTP Observatory, SSL Labs, Wave Web Accessibility etc). No need to login or register, it'll open a new tab with your audit right there!

About

Shelly Dev Kit

Features
Read full description

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 • Live inventory of your cloud-connected Gen1, Gen2+ and BLU devices, grouped by room • Switch, cover and light controls, sensor readings, and real-time status over WebSocket • "View API call" on any control shows the exact request and response API EXPLORER • Documented contracts for OAuth, inventory, control and real-time events, plus the Gen1 REST and Gen2+ RPC local APIs • Try it: run allow-listed calls against your own devices and inspect the raw response • History of your last 50 calls; copy any call as cURL, Swift or JavaScript with the token masked BUILD • Compose multi-step recipes: read a value, branch on it, wait, show a result or send a raw request • Test-run a recipe inside the app before exporting it • Export it as an App Intent: it appears in Shortcuts and Spotlight and can be run with a Siri phrase PRIVACY BY DESIGN • Your Shelly password is only ever typed into Shelly's page; the app keeps the resulting token in the iOS Keychain • No account with us, no backend of ours, no tracking • 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

Web DevTools+4 screens
Shelly Dev Kit4 screens

Verdict

The call

The clearest difference is in-app purchases: Web DevTools+ at none against Shelly Dev Kit's 2. 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. Shelly Dev Kit sells 2 in-app purchases, starting at $9.99 per month. Web DevTools+ asks for nothing beyond the download.

UpkeepUpdate frequency

Web DevTools+ ships an update every 8 days, Shelly Dev Kit every 10 days. The most recent releases landed on November 9, 2026 and November 6, 2026 respectively.

Scorecard1 real difference · 9 level
Web DevTools+ versus Shelly Dev Kit: the parameters behind the verdict, then further details
ParameterWeb DevTools+Shelly Dev Kit
PriceFreeFree
Rating5.0 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 8 days — betterEvery 10 days
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad — betteriPhone
Requires iOS18.717.0 — better
Further details — not scored
Size8 MB20 MB
Age rating4+4+
DeveloperBeautificationSydcup OU

In-app purchases

None

Web DevTools+

No in-app purchases

2 purchases

Shelly Dev Kit

Subscriptions2
  • Shelly Dev Kit Monthly$9.991 Month
  • Shelly Dev Kit Yearly$79.991 Year

Questions

Is Web DevTools+ free?
Web DevTools+ is free to download, with no in-app purchases.
Is Shelly Dev Kit free?
Shelly Dev Kit is free to download, with in-app purchases available.
Do Web DevTools+ or Shelly Dev Kit have ads?
Neither Web DevTools+ nor Shelly Dev Kit shows ads.
Which is updated more often, Web DevTools+ or Shelly Dev Kit?
Web DevTools+ ships an update every 8 days, and Shelly Dev Kit every 10 days. Most recently, Web DevTools+ was updated on November 9, 2026 and Shelly Dev Kit on November 6, 2026.

Other comparisons