Packet Capture Pro vs FlowSpy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Packet Capture Pro
Capture and analyze HTTP/HTTPS/WebSocket traffic on your device. Inspect full request/response details, filter by keywords, and rewrite/replay network responses. Collaborate with PC clients and import/export HAR files for seamless debugging.
- Real-time HTTP/HTTPS/WebSocket traffic capture
- Detailed request and response inspection
- Keyword-based filtering
- Rewrite and replay network responses
- Cross-device collaboration with PC client
- HAR file import and export
- Integrated encryption/decoding tools
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Packet Capture Pro is a professional network analysis, packet capture, HTTP proxy, and API testing tool for iPhone and Mac. Built for developers, QA engineers, API testers, and cybersecurity professionals, it helps you capture, inspect, intercept, and debug HTTP, HTTPS, and WebSocket traffic. Debug APIs, analyze app traffic, monitor networks, and automate testing with rewrite rules, request replay, and JavaScript scripts. Core features HTTP/HTTPS/WebSocket Packet Capture Capture and inspect network traffic in real time using a secure local VPN proxy. ● Capture HTTP, HTTPS, and WebSocket requests ● View requests, responses, cookies, headers, and payloads ● Multiple data viewers: Raw, Text, JSON, XML, HTML, Image, Media, and HEX ● Store capture history locally for offline analysis and replay Perfect for packet analysis, traffic inspection, API debugging, and network monitoring. Advanced API Testing & Request Debugging Powerful tools for API development and troubleshooting. ● Edit URLs, query parameters, headers, and request bodies ● Import captured requests for rapid API testing ● Monitor response times, status codes, and performance metrics ● Diagnose API failures, SSL issues, timeout errors, and network exceptions Ideal for REST API testing, mobile app debugging, and backend service validation. Rewrite Modify requests and responses dynamically with flexible rewrite rules. Supported Rewrite Modes: ● Request Replacement ● Response Replacement ● Request Modification ● Response Modification ● URL Redirection Automate testing workflows and simulate real-world network scenarios without changing application code. JavaScript scripts Automate API testing and network debugging with JavaScript. ● Modify HTTP/HTTPS requests and responses ● Process URLs, headers, bodies, JSON, text, and binary data ● Redirect requests and import or export scripts Advanced Replay Replay captured requests with configurable loops, delays, and intervals. ● API reproduction and debugging ● Performance validation ● Stress testing and load simulation ● Regression testing workflows Real-Time iPhone-to-Mac Traffic Sync Analyze mobile traffic on a larger screen. ● Mirror iPhone network traffic directly to Mac ● Instant connection via QR code scanning ● Manual connection through IP and Port configuration ● Real-Time packet inspection and traffic monitoring Built for seamless debugging across the Apple ecosystem. Import / Export Work efficiently with industry-standard traffic formats. ● Import HAR files for packet analysis ● Export captured sessions as HAR or CSV ● Share debugging sessions with teammates ● Archive traffic data for future investigation. Precision Capture Rules Filter traffic intelligently and focus on what matters. ● Exclude specific domains from packet capture ● Capture HTTPS traffic only from selected domains Reduce noise and improve debugging efficiency. Developer Network Toolbox Everything you need for everyday network diagnostics. ● AES Encryption & Decryption ● URL Encoding & Decoding ● Base64 Encoding & Decoding ● Unicode Conversion ● MD5 Hash Generation ● Ping & TCP Ping Diagnostics ● Regular Expression Tester ● JSON Viewer / XML Viewer / HEX Viewer Privacy First Packet Capture Pro uses a local VPN configuration to capture and analyze network traffic securely on your device. ● No cloud uploads ● No data collection ● No third-party servers ● All captured traffic remains on your device Your requests, responses, API data, and packet capture history are stored locally, ensuring maximum privacy and security. Privacy Policy: https://pcp.realsignal.com/privacy Terms of Service: https://pcp.realsignal.com/terms Official Website & Support Download the companion Mac application and learn more about Packet Capture Pro: https://pcp.realsignal.com Discover more tools from RealSignal: https://www.realsignal.com
FlowSpy
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FlowSpy is an AI-powered network debugging tool for developers, QA engineers, and security researchers. Capture, inspect, filter, replay, analyze, and export HTTP/HTTPS traffic directly on iPhone and iPad. [LOCAL VPN CAPTURE] FlowSpy uses a local VPN and on-device proxy to capture HTTP/HTTPS traffic. The VPN is only used for local network debugging. It does not provide remote VPN service, anonymization, censorship circumvention, network acceleration, or remote traffic forwarding. [HTTPS INSPECTION AND CERTIFICATE GUIDE] To inspect HTTPS payloads, users must explicitly install and trust a self-signed CA certificate generated locally on the device. FlowSpy provides guided setup steps, and users can stop capture, remove the VPN configuration, or clear certificates at any time. [AI ANALYSIS] Local rule analysis is available by default and does not upload data. Pro cloud AI analysis only runs when the user explicitly starts analysis for selected traffic. It helps identify anomalous requests, performance issues, security risks, and suggested fixes. [DEVELOPER WORKFLOW] • Browse requests grouped by domain • Filter by method, status code, host, protocol, and content type • Inspect headers, body, cookies, timing, and response payloads • Replay requests and edit parameters before replaying • Export HAR, JSON, CSV, and cURL • Scan token, cookie, and privacy-field risks [PRIVACY FIRST] Captured traffic is stored locally on the device by default. FlowSpy does not include advertising SDKs and does not track users across apps or websites. Use packet capture and HTTPS inspection only on devices, apps, websites, and networks you are authorized to inspect. [SUBSCRIPTION INFORMATION] FlowSpy offers a free tier and Pro auto-renewable subscriptions: Free tier: • Basic packet capture • Local rule analysis • 3 free daily uses each for AI analysis, advanced filters, and professional export Pro Monthly: • $9.99 / month • Unlocks unlimited AI analysis, advanced filters, and professional export Pro Annual: • $59.99 / year • Saves 50% each year compared with monthly billing • Unlocks the same Pro features as the monthly plan Payment will be charged to your App Store account. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. You can manage or cancel subscriptions in your App Store account settings. Actual pricing and duration are shown in the App Store purchase confirmation sheet. Privacy Policy: https://flowspy.bytestrans.info/privacy.html Terms of Service: https://flowspy.bytestrans.info/terms.html Support: smartnetworkinc@hotmail.com
Screenshots
Verdict
The clearest difference is ads: FlowSpy at none against Packet Capture Pro's shown. Packet Capture Pro's advantage is chart position (#98 vs unranked) and iOS requirement (15.0 vs 17.0). On price, 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
Both are free to download. Packet Capture Pro sells 5 in-app purchases, starting at $1.99 per 7 days and FlowSpy sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | Packet Capture Pro | FlowSpy |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (14 ratings) — better | — |
| Positive reviews | 92.9% of reviews | — |
| Number of ratings | 14 — better | — |
| Update frequency | Weekly | — |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Best chart rank | #98 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 52 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | REALSIGNAL PTE. LTD. | Chongqing Spell Technology Co., Ltd. |
In-app purchases
Packet Capture Pro
- Unlock all the features3 Days trial$1.997 Days
- Unlock all the features3 Days trial$4.991 Month
- Unlock all the features$4.991 Month
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- Unlock all the features3 Days trial$49.991 Year
- Unlock all the features$49.991 Year
FlowSpy
- FlowSpy Pro Monthly$9.991 Month
- FlowSpy Pro Annual$59.991 Year









