Comparison

Network Sniffer vs Preloop

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

Preloop

This app acts as a human approval layer for AI agents, intercepting risky actions and routing them for your one-tap approval. It allows AI to handle routine tasks while you maintain control over critical decisions, ensuring compliance and an audit trail.

Highlights
  • Human approval for AI actions
  • Instant notifications with context
  • One-tap approve/decline
  • Audit trail for compliance
  • Risk-based policy enforcement
  • Works with Claude and Cursor
Features
Read full description

Preloop is the human approval layer for autonomous AI agents. When your agents attempt risky actions like deployments, refunds, or data changes, Preloop intercepts the request and routes it to you for approval right on your iPhone or Apple Watch. The right people in your organization get instant notifications with full context, approve or decline with one tap, while your organization maintains a complete audit trail for compliance. Preloop enables event-driven automation through Agentic Flows - let AI agents handle routine work automatically while you control critical decisions. Setup takes 3 minutes as an MCP proxy, works with Claude and Cursor, and requires no infrastructure changes. Risk-based policies ensure only high-stakes actions need approval while low-risk operations run automatically. AI agents can't take legal or moral responsibility for their actions - Preloop ensures humans stay in control. Perfect for engineering teams, DevOps, and anyone deploying autonomous AI in production. Enterprise-ready, designed for SOC2 compliance, role-based access, and secure end-to-end encryption.

Screenshots

Network Sniffer4 screens
Preloop2 screens

Verdict

The call

The clearest difference is in-app purchases: Preloop at none against Network Sniffer's 1. Preloop also leads on rating (5.0 vs 4.6). Network Sniffer's advantage is ratings volume (197 vs 1) and update cadence (every 3 weeks vs every 3 months). 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. Preloop asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Preloop holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Network Sniffer has 197 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Network Sniffer ships an update every 3 weeks, Preloop every 3 months. The most recent releases landed on October 25, 2026 and October 11, 2026 respectively.

Scorecard6 real differences · 4 level
Network Sniffer versus Preloop: the parameters behind the verdict, then further details
ParameterNetwork SnifferPreloop
PriceFreeFree
Rating4.6 (197 ratings)5.0 (1 ratings) — better
Positive reviews71.1% of reviews—
Number of ratings197 — better1
Update frequencyEvery 3 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS15.6 — better18.2
Further details — not scored
Size65 MB4 MB
Age rating4+4+
DeveloperCHENGDU MIAOZHI TECHNOLOGY CO., LTD.Spacecode AI Inc

Customer experience

Network Sniffer

All ratings188 ratings
Positive88.3%
Neutral3.2%
Negative8.5%
Written reviews38 reviews
Positive71.1%
Neutral2.6%
Negative26.3%

Preloop

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Network Sniffer

One-time1
  • Lifetime Premium$7.99
None

Preloop

No in-app purchases

Questions

Is Network Sniffer free?
Network Sniffer is free to download, with in-app purchases available.
Is Preloop free?
Preloop is free to download, with no in-app purchases.
Which has better reviews, Network Sniffer or Preloop?
Preloop is rated higher. Network Sniffer averages 4.6 out of 5 from 197 ratings, while Preloop averages 5.0 from 1 ratings.
Do Network Sniffer or Preloop have ads?
Neither Network Sniffer nor Preloop shows ads.
Which is updated more often, Network Sniffer or Preloop?
Network Sniffer ships an update every 3 weeks, and Preloop every 3 months. Most recently, Network Sniffer was updated on October 25, 2026 and Preloop on October 11, 2026.

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