Comparison

SEO Tracer vs API Canvas

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

Head to head
About

SEO Tracer

Perform comprehensive website SEO audits directly from your iPhone or iPad. This privacy-focused tool identifies technical issues, broken links, and on-page problems without uploading any data. Get professional reports and built-in guidance to improve your site's search engine ranking.

Highlights
  • Full site audit (titles, meta, links, etc.)
  • Technical SEO issue detection
  • Built-in SEO explanations and fixes
  • JavaScript website rendering
  • Robots.txt and sitemap discovery
  • CSV and HTML report export
  • Cross-platform backup with macOS
Features
Read full description

SEO Tracer — Professional Technical SEO Crawler for iPhone and iPad Run detailed website audits from your iPhone or iPad. SEO Tracer is a fast, privacy-first crawler that uncovers technical SEO problems, broken links, and on-page issues directly on your device. Unlike cloud-based tools, your crawl data stays local. No accounts, uploads, or tracking. KEY FEATURES ---- • Scan titles, meta descriptions, H1/H2 headings, canonicals, internal and external links, images, CSS, and JavaScript. • Find missing titles, duplicate headings, redirect chains, and 4xx/5xx errors. • Tap issues for explanations, fix examples, and useful resources. • Search downloaded HTML with text or regular expressions. • Render JavaScript-powered websites for accurate audits. • Detect robots.txt files and discover sitemaps. • Filter and sort pages by response code. • Export clean CSV and HTML reports. • Import and export crawl sessions with SEO Tracer for Mac. FOR SEOS, DEVELOPERS, AND MARKETERS ---- Run quick audits during client meetings, test websites on the go, and check site health before problems affect traffic. PRIVATE BY DESIGN ---- Crawl data stays on your device from start to finish. No cloud dependency, signup, or data collection. PLANS ---- Free tier: Up to 500 pages. Pro tier: Unlimited crawling plus advanced features. Apple Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Terms of Use: https://www.seotracer.app/terms Privacy Policy: https://www.seotracer.app/privacy

About

API Canvas

Features
Read 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

SEO Tracer4 screens
API Canvas4 screens

Verdict

The call

The clearest difference is update cadence: SEO Tracer at every 6 weeks against API Canvas's every 4 months. On price, ads, in-app purchases 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. SEO Tracer sells 3 in-app purchases, starting at $4.99 per month and API Canvas sells 2 in-app purchases, starting at $9.99 per year. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

SEO Tracer ships an update every 6 weeks, API Canvas every 4 months. The most recent releases landed on October 17, 2026 and October 11, 2026 respectively.

Scorecard1 real difference · 9 level
SEO Tracer versus API Canvas: the parameters behind the verdict, then further details
ParameterSEO TracerAPI Canvas
PriceFreeFree
Rating5.0 (13 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings13 — better—
Update frequencyEvery 6 weeks — betterEvery 4 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS18.617.5 — better
Further details — not scored
Size5 MB11 MB
Age rating12+17+
Developerperpetual media ltd.Canadian Cat, LLC

In-app purchases

3 purchases

SEO Tracer

Subscriptions2
  • Monthly Premium$4.991 Month
  • Yearly Premium$44.991 Year
One-time1
  • Lifetime Access$129.99
2 purchases

API Canvas

Subscriptions1
  • Pro (Yearly)14 Days trial$9.991 Year
One-time1
  • Pro (Lifetime)$19.99

Questions

Is SEO Tracer free?
SEO Tracer is free to download, with in-app purchases available.
Is API Canvas free?
API Canvas is free to download, with in-app purchases available.
Do SEO Tracer or API Canvas have ads?
Neither SEO Tracer nor API Canvas shows ads.
Which is updated more often, SEO Tracer or API Canvas?
SEO Tracer ships an update every 6 weeks, and API Canvas every 4 months. Most recently, SEO Tracer was updated on October 17, 2026 and API Canvas on October 11, 2026.

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