Web Inspector vs API Canvas
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Web Inspector
This app provides a suite of web development tools for Safari on mobile devices. Inspect and edit the DOM, view element styles, execute JavaScript commands, monitor network requests, and examine stored resources like cookies.
- DOM inspection and editing
- Element style viewer
- JavaScript console
- Network request monitoring
- Resource storage details
Read full descriptionHide full description
Web Inspector expands Safari on iPhone and iPad with a set of web development tools: Elements: Browse the DOM tree and tap elements on the page to inspect them. View node details, styles, and computed values. Search the DOM, edit an element's HTML, and copy or delete nodes. Console: Type JavaScript commands to debug, modify, and get information about your webpage. Sources: Read the webpage's source with syntax highlighting. Network: See a list of network requests made by the webpage, with headers and responses. Filter requests, or copy one as a cURL command. Resources: Find details about the data stored by a webpage, such as cookies, local storage, and session storage. Tip: If you tap the Web Inspector button and nothing happens, reload the page once..
API Canvas
Read full descriptionHide full description
Your APIs don't stop needing testing when you step away from your desk. API Canvas brings a full-featured, native testing experience to iPhone and iPad—built from the ground up on Apple's Liquid Glass design language, not bolted onto a web wrapper. With API Canvas in your pocket, you have access to: ▶ Send Requests: Make HTTP calls using GET, POST, PATCH, PUT, or DELETE methods. ▶ Inspect Responses: Response bodies and headers are made easy to read and understand. Syntax highlighting makes HTML and JSON responses easy to read, even in dark mode. ▶ Stars & Collections: Mark your requests as starred or add them to a collection of your choice to make them easy to find. ▶ Import Requests: Bring in your request collection from Postman so you're not starting from zero. ▶ Request History: Your most recent requests can be found with the touch of a button. Re-run them at any time. Go Pro to unlock: ▶ Customize Collections: Bring your collections list to life by coloring each collection and adding an icon that suits your personality. ▶ Environment Variables: No need to update the auth token in every saved request when it changes. Write 'Bearer {{token}}' once, and update it across every request. ▶ Export Requests: Package up your API requests into a tidy little JSON file and send it over to Postman or keep it as a backup just in case. You worked hard to build your web service. Your APIs deserve a testing tool that works just as hard. ---- Privacy Policy: https://canadiancat.io/api-canvas/privacy Terms & Conditions: https://canadiancat.io/api-canvas/terms
Screenshots
Verdict
The clearest difference is in-app purchases: Web Inspector at none against API Canvas's 2. Web Inspector also leads on update cadence (weekly vs every 4 months) and chart position (#45 vs unranked). On price, 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
Both are free to download. API Canvas sells 2 in-app purchases, starting at $9.99 per year. Web Inspector asks for nothing beyond the download.
Web Inspector ships an update weekly, API Canvas every 4 months. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | Web Inspector | API Canvas |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (160 ratings) — better | — |
| Positive reviews | 64.7% of reviews | — |
| Number of ratings | 160 — better | — |
| Update frequency | Weekly — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Best chart rank | #45 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.5 |
| Further details — not scored | ||
| Size | 2 MB | 11 MB |
| Age rating | 4+ | 17+ |
| Developer | And a Dinosaur | Canadian Cat, LLC |
Bugs and requests
Web Inspector
Reported bugs
4 issues- Disappears when reloading webpage
- Doesn't work on newer iOS versions
- Doesn't load on crashed tabs
- Permissions issues
Requested features
4 requests- CSS editing capabilities
- Resizable panel
- Improved console functionality
- Better integration with Safari
API Canvas
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Web Inspector
No in-app purchases
API Canvas
- Pro (Yearly)14 Days trial$9.991 Year
- Pro (Lifetime)$19.99









