Comparison

Network Sniffer vs PAC Tester

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

Head to head
About

Network Sniffer

Analyze your device's network activity to understand app behavior. Identify which apps are connecting to the internet, their data usage, and potential privacy risks. Gain control over your network with detailed visual reports and advanced inspection tools.

Highlights
  • Deep network analysis with visual reports
  • Capture HTTP/HTTPS/WebSocket traffic
  • External proxy for custom inspection
  • JavaScript scripting for custom rules
  • Request replay and rewrite
  • Real-time speed and data usage widgets
Features
Read full description

Network Sniffer is an intelligent network activity analyzer that helps you understand what your apps are really doing online. No technical skills required — easily identify: Which apps are secretly connecting to the internet? Are they sending requests frequently in the background? Is your privacy at risk or data being wasted? You're no longer a passive user — you're in control. Core Features (not limited to): 1. Deep Network Analysis: Visual reports showing which apps are connecting, what they are sending, how often, and whether there’s abnormal or wasteful activity. 2. Network Sniffing: Capture HTTP/HTTPS/WebSocket traffic on your iOS device, with full MITM support for encrypted traffic analysis. 3. External Proxy: Route device traffic through an external proxy server, enabling custom inspection, filtering, and debugging of network requests. 4. JavaScript Scripting: Create custom rules and behaviors using JavaScript to enhance and personalize your network inspection. 5. Request Replays: Resend captured requests to test app behavior under various conditions — ideal for debugging and performance testing. 6. Request/Response Rewrite: Modify headers and bodies of requests and responses on the fly, giving you unmatched control over data flows. 7. Client Proxy: Forward requests from other devices on your local network to this device for centralized debugging. 8. Upstream Proxy Support: Forward HTTP requests to a third-party proxy server for advanced testing or network routing scenarios. 9. Widgets & Dynamic Island Support: Monitor upload/download speeds and data usage in real time via homescreen widgets or the iPhone Dynamic Island. Permissions Network Sniffer requires VPN permission to function. This is only used for local traffic capture — no remote servers or proxying involved. Privacy Notice Network Sniffer does not upload any of your data and does not include any proxy, VPN bypass, or "scientific access" functions. Your data stays on your device. If you have any feedback or questions, please feel free to contact us at miaozhi.ai@gmail.com

About

PAC Tester

Features
Read full description

With PAC Tester you can create, download, test and validate .pac files directly from your device! Enter any url and see which proxy it would travel through (if any). Uses built in proxy handlers to see exactly how iOS would handle it. • Automatically convert your current proxy settings (hand entered, via .pac file, MDM) into .pac format! • Download remote .pac files • Example .pac files built in • Netscape's original Proxy Auto-Config documentation • Test proxy responses!

Screenshots

Network Sniffer4 screens
PAC Tester3 screens

Verdict

The call

The clearest difference is in-app purchases: PAC Tester at none against Network Sniffer's 1. Network Sniffer's advantage is chart position (#63 vs unranked) and iOS requirement (15.6 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. Network Sniffer sells 1 one-off in-app purchase. PAC Tester asks for nothing beyond the download.

Scorecard3 real differences · 8 level
Network Sniffer versus PAC Tester: the parameters behind the verdict, then further details
ParameterNetwork SnifferPAC Tester
PriceFreeFree
Rating4.6 (198 ratings) — better—
Positive reviews71.1% of reviews—
Number of ratings198 — better—
Update frequencyEvery 3 weeks—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
Best chart rank#63 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better26.0
Further details — not scored
Size65 MB3 MB
Age rating4+4+
DeveloperCHENGDU MIAOZHI TECHNOLOGY CO., LTD.Casey Evanoff

In-app purchases

1 purchases

Network Sniffer

One-time1
  • Lifetime Premium$7.99
None

PAC Tester

No in-app purchases

Questions

Is Network Sniffer free?
Network Sniffer is free to download, with in-app purchases available.
Is PAC Tester free?
PAC Tester is free to download, with no in-app purchases.
Do Network Sniffer or PAC Tester have ads?
Neither Network Sniffer nor PAC Tester shows ads.

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