Comparison

ApiCatcher vs SiteGrade

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

Head to head
About

ApiCatcher

This tool captures and debugs HTTP/HTTPS traffic on your mobile device. It allows you to modify, resend, and analyze requests, generate API documentation, and apply custom rules for flexible customization. All data is stored locally for privacy.

Highlights
  • Capture HTTP/HTTPS traffic
  • Modify and resend requests
  • Generate API documentation
  • Rewrite and script rules
  • Export traffic as HAR files
  • API scanning and statistics
Features
Read full description

ApiCatcher is a user-friendly mobile HTTP/HTTPS/WS/WSS packet capture and debugging tool. ApiCatcher also offers macOS and Windows versions (ApiCatcher Desktop), and the ApiCatcher can sync captured traffic to ApiCatcher Desktop in real time. [Key Features] • Traffic Capture: Capture HTTP, HTTPS, WS, and WSS traffic (WS: WebSocket; WSS: WebSocket over TLS). • Data Manipulation: Copy, export, encrypt, and decrypt Query Params, Headers, and Bodies. • Host Filtering: Configure blacklists and whitelists to filter captured hosts. • Request Replay: Modify and resend requests. • Combo Replay: Schedule and execute multiple requests sequentially based on dependencies, with support for dynamic parameter injection. • Scheduled Replay: Automate and trigger request replays at set intervals. • Auto-Generated API Docs: Automatically generate API documentation and export directly to Postman or Apifox. • Rewrite Rules: Mock responses, redirect requests, modify requests/responses, or drop requests/responses. • Scripting Engine: Extend capabilities with script plugins to flexibly modify requests and responses on the fly. • History Export: Batch export captured traffic as HAR files. • API Scanner: Run rule-based vulnerability/error detection and statistics on captured traffic, with support for custom scanning rules. • Media Export: Batch export images and videos, with automatic merging for segmented download requests. • Real-Time Sync: Stream captured HTTP/HTTPS traffic instantly to ApiCatcher Desktop for advanced analysis and debugging. It also supports syncing to Burp Suite, which requires installing the plugin provided by ApiCatcher on Burp Suite. • DNS mapping/spoofing: Bypass DNS resolution by sending requests for specified domain names to a designated IP address, achieving an effect similar to editing the hosts file on a computer. • Support decoding request/response bodies encoded with the Protobuf protocol, such as gRPC requests. If a .desc descriptor file is provided, field names can also be decoded. [Personalization Settings] • Configurable code highlighting styles with multiple built-in themes, supporting JSON/XML/HTML/JS. • AI assistant mode available: directly capture and analyze packets through AI dialogue. [How It Works] ApiCatcher establishes a local VPN connection on your device to route all network traffic through a local Man-in-the-Middle (MITM) service. As long as the VPN is active, ApiCatcher can capture any HTTP/HTTPS/WS/WSS traffic passing through Wi-Fi or cellular data. [Data Privacy & Security] ApiCatcher's root certificate is a self-signed certificate generated entirely on your own device. All captured HTTP/HTTPS/WS/WSS data is stored locally on your device and is never uploaded to any remote servers. [Description of automatic subscription service] 1.Subscription service: a) Ultimate Monthly (1 month) b) Ultimate Yearly (12 months) 2.Payment: After the user confirms the purchase and makes payment, it will be credited to the iTunes account 3.Automatic renewal: Apple iTunes account will be charged within 24 hours before the expiration date, and the subscription period will be extended by one subscription period after the successful deduction 4.Close the service: You can close the service by going to "Settings" on your iPhone, entering "iTunes Store and App Store", clicking on "Apple ID", selecting "View Apple ID", entering the "Account Settings" page, clicking on "Subscriptions", and managing automatic subscription services. If you need to cancel, you can close it 24 hours before the end of each billing cycle, and no further charges will be deducted within 24 hours before the expiration date 5.Service Agreement: https://apicatcher.net/en/terms-of-service 6.Privacy Agreement: https://apicatcher.net/en/privacy-policy

About

SiteGrade

Features
Read full description

SiteGrade checks the security configuration a website serves to browsers, grades it A to F, and explains every finding in plain English with the exact change to make. Type a domain on iPhone or iPad, or share a page straight from Safari, and the answer takes seconds. One purchase also covers Mac. WHAT IT CHECKS Security headers - Content-Security-Policy, including report-only policies - Strict-Transport-Security (HSTS), with max-age and includeSubDomains - X-Content-Type-Options - X-Frame-Options and CSP frame-ancestors - Referrer-Policy - Permissions-Policy - Cross-Origin-Opener-Policy, Cross-Origin-Embedder-Policy and Cross-Origin-Resource-Policy - Server and framework version disclosure - Legacy X-XSS-Protection TLS/SSL certificate - Chain validity, trusted root, self-signed and hostname-mismatch detection - Expiry date, with a warning well before it becomes an outage - Negotiated protocol version, TLS 1.0 through TLS 1.3 Transport - Whether plain HTTP redirects to HTTPS, asked on port 80 directly - The full redirect chain, including cross-host and downgrading hops - Mixed content: the page loads in an isolated web view and every insecure subresource request is recorded, active and passive DNS and email - A, AAAA, CNAME and MX records - SPF and DMARC presence and policy - Reported as information only. DNS and email findings never move the letter grade. EXPLAINED, NOT DUMPED Every finding answers three questions: what it means, why it matters, and how to fix it, with copy-ready nginx and Apache values and a command to confirm the fix landed. There is also a fix prompt written from your own report that you can hand to a coding agent. THE GRADE SHOWS ITS WORK Points, caps and bands come from a rubric published inside the app on a "How grading works" screen, so you can always answer "why a B?". Every finding shows the raw evidence behind it: the header value received, the certificate fields, the DNS answers. FREE AND PRO Checking sites is free and unlimited, and every free check shows the grade and the full finding list. Pro is a one-time purchase, never a subscription. It covers iPhone, iPad and Mac, and it is shareable with your family. Pro unlocks: - Every finding's plain-English explanation, fix snippet and evidence - History, kept on your device and grouped by domain, so a grade has a trend instead of a moment - Compare, so a re-check shows what was fixed, what regressed and what is new - Export of the full report as Markdown or PDF, and the fix prompt PRIVATE BY CONSTRUCTION No accounts, no servers, no analytics, no trackers, no ads. Nothing you check is sent to us, because there is nowhere for it to go. Your reports stay on your device. HONEST ABOUT SCOPE This grade reflects the security configuration a site serves to browsers. It is not a security audit. Every check is passive and read-only: a GET request, one TLS handshake, DNS lookups and one page load, which is the same traffic a browser makes when it opens the page. SiteGrade is built for checking your own site or a site you manage. Terms of Use: https://joneslabs.dev/terms

Screenshots

ApiCatcher4 screens
SiteGrade4 screens

Verdict

The call

The clearest difference is in-app purchases: SiteGrade at none against ApiCatcher's 4. ApiCatcher's advantage is iOS requirement (17.0 vs 26.0). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. ApiCatcher sells 4 in-app purchases, starting at $9.99 per month. SiteGrade asks for nothing beyond the download.

Scorecard2 real differences · 8 level
ApiCatcher versus SiteGrade: the parameters behind the verdict, then further details
ParameterApiCatcherSiteGrade
PriceFreeFree
Rating5.0 (6 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings6 — better—
Update frequencyEvery 5 days—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS17.0 — better26.0
Further details — not scored
Size57 MB6 MB
Age rating4+4+
DeveloperNanning Signalling Network Technology Co., LtdJonesLabs LLC

In-app purchases

4 purchases

ApiCatcher

Subscriptions2
  • Ultimate$9.991 Month
  • Ultimate$49.991 Year
One-time2
  • Lifetime Pro$39.99
  • Lifetime Ultimate$89.99
None

SiteGrade

No in-app purchases

Questions

Is ApiCatcher free?
ApiCatcher is free to download, with in-app purchases available.
Is SiteGrade free?
SiteGrade is free to download, with no in-app purchases.
Do ApiCatcher or SiteGrade have ads?
Neither ApiCatcher nor SiteGrade shows ads.

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