requiem.http vs ApiCatcher
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
requiem.http
Easily construct complex HTTP requests by chaining actions like adding headers, bodies, and parameters. Send requests and view syntax-highlighted, color-coded responses with timing details. Share requests as simple URLs without needing an account or server.
- Chain actions to build requests
- Add headers, body, path, and query parameters
- Syntax-highlighted, color-coded responses
- View response timing
- Share requests via URL
- Uses standard .http file format
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**Build Complete HTTP Requests** Start with a URL, then chain actions to add headers, a body, path segments, and query parameters. Each action modifies the request and passes it to the next — no scripting required. Compose complex API calls the same way you build any shortcut. **Send and See What Comes Back** Send requests and get syntax-highlighted responses. Methods, headers, status codes, and body content are color-coded. JSON is pretty-printed. Response timing tells you exactly how long each call takes. **Share Requests With a Link** Encode any request as a req.to URL — method, headers, body, everything. No server, no account. Anyone who opens the link sees the full request. Great for sharing API examples or debugging with teammates. **Standard Format** Requests are stored as .http files — the same plain-text format used by VS Code REST Client, JetBrains, and httpYac. Portable, readable, and not locked in a proprietary database. Read the spec at http-files.org.
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.
- Capture HTTP/HTTPS traffic
- Modify and resend requests
- Generate API documentation
- Rewrite and script rules
- Export traffic as HAR files
- API scanning and statistics
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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) Pro Monthly (1 month) b) Pro Yearly (12 months) c) Ultimate Monthly (1 month) d) 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
Screenshots
Verdict
The clearest difference is price: ApiCatcher at Free against requiem.http's $5.00. ApiCatcher also leads on update cadence (every 4 days vs every 9 days) and ratings volume (8 vs 2). requiem.http's advantage is in-app purchases (none vs 6) and rating (5.0 vs 4.8). On 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
ApiCatcher is free to download; requiem.http costs $5.00 up front. ApiCatcher sells 6 in-app purchases, starting at $4.99 per month. requiem.http asks for nothing beyond the download.
requiem.http holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 2 and 8 respectively.
requiem.http ships an update every 9 days, ApiCatcher every 4 days. The most recent releases landed on October 30, 2026 and November 9, 2026 respectively.
| Parameter | requiem.http | ApiCatcher |
|---|---|---|
| Price | $5.00 | Free — better |
| Rating | 5.0 (2 ratings) — better | 4.8 (8 ratings) |
| Positive reviews | — | 93.8% of reviews |
| Number of ratings | 2 | 8 — better |
| Update frequency | Every 9 days | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 27.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 11 MB | 66 MB |
| Age rating | 17+ | 4+ |
| Developer | X-AMZ LLC | Nanning Signalling Network Technology Co., Ltd |
Customer experience
requiem.http
ApiCatcher
In-app purchases
requiem.http
No in-app purchases
ApiCatcher
- Pro Monthly Renewal$4.991 Month
- Ultimate$9.991 Month
- Pro Yearly Renewal$19.991 Year
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- Ultimate$39.991 Year
- Lifetime Pro$39.99
- Lifetime Ultimate$69.99









