# Nan - Packet Capture — TCP/IP layer, NOT system proxy

> Network packet capture and decryption tool for TCP/IP layer traffic. (iPhone/iPad app by TxThinking, Inc..)

- Source: https://appshunter.io/ios/app/nan-packet-capture/id1534485108 (this page in markdown: same URL + `.md`)
- Developer: [TxThinking, Inc.](https://appshunter.io/developer/1634589596)
- Category: Developer Tools, Utilities
- Price: $34.99
- Rating: 4.60/5 from 9 App Store ratings · 9 written reviews indexed
- Age rating: 17+
- Requires: iOS 15.0 · 177 MB
- Languages: American English, Chinese (Simplified, China)
- Released: 2020-11-06
- Data updated: 2026-08-20
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/nan-packet-capture/id1534485108/reviews.md

## What is Nan?

Why You Need This:

- Capture on TCP/IP layer, NOT system proxy. Avoid some applications not going through the proxy
- Detect TLS connection and ALPN
- Only capture and decrypt HTTPS the address you specify, to prevent certain applications from malfunctioning due to addresses that cannot be captured by packet capture.
- Also support decrypt WebSocket

How it works:

- This app captures all IP packets (IP layer)
- Next assemble into TCP stream (TCP layer)
- Probe TLS connections and ALPN information to help you determine if there's any possibility of packet capture.
- Next assemble into HTTPS/WebSocket packet (Application layer) if you MITM it

## Key features

- TCP/IP layer capture
- System proxy bypass
- TLS connection detection
- HTTPS capture and decryption
- WebSocket decryption
- IP packet assembly

## Chart rankings

- #107 in Top Paid · Developer Tools (US App Store)

## Recent user reviews (9 of 9)

All indexed reviews: https://appshunter.io/ios/app/nan-packet-capture/id1534485108/reviews.md

### 5/5 — 这个必须写一个好评

*2026-03-26*

就是好，好的不得了，革名级别的抓包软件！一个手机搞定！

### 5/5 — Better than Charles

*2026-01-15*

If an app ignore system proxy in its code, then Charles can not capture it. But Nan can!

### 5/5 — The Best Packet Capture App

*2025-11-15*

This is the only best packet capture app on iOS platform I sawed. I tried many many apps, but they are using system proxy and a desktop requested, except this. This is the only packet capture app that works at real network interface, ip packet layer, and without needing a desktop. Nan can works standard alone on iOS.

### 5/5 — 新版好

*2025-11-14*

新版本简直太好了，比之前的好多了

### 5/5 — Useful App

*2025-11-14*

This is a useful app for me

### 5/5 — New version good

*2025-11-13*

The new version is so best than previous, thank you.

### 5/5 — Really nice

*2025-11-11*

Nice new version

### 1/5 — bug

*2022-12-05, version 20221010*

3台苹果手机全部都是打开VPN WI-FI自动就关了，这还抓个啥呀

### 5/5 — Really nice

*2020-11-07*

Mostly only iOS app that support Wireshark

## Frequently asked questions about Nan

### What is Nan - Packet Capture used for?

Nan - Packet Capture is used to capture and decrypt network traffic at the TCP/IP layer, including TLS and WebSocket connections. It helps developers analyze network behavior and debug applications.

### How does Nan - Packet Capture differ from a system proxy?

Unlike system proxies, Nan - Packet Capture operates at the TCP/IP layer, allowing it to capture traffic from applications that may not go through a standard proxy. This provides deeper network visibility.

### Can Nan - Packet Capture decrypt all HTTPS traffic?

Nan - Packet Capture can capture and decrypt HTTPS traffic for specified addresses. This selective approach helps prevent certain applications from malfunctioning due to unexpected capture.

### What devices support Nan - Packet Capture?

Nan - Packet Capture is supported on iPhone, iPad, and iPod devices, indicating compatibility with Apple's iOS ecosystem.

### What is the price of Nan - Packet Capture?

Nan - Packet Capture is a paid application, with a listed price of $34.99. This one-time purchase grants access to its full functionality.

### How often is Nan - Packet Capture updated?

The application was last updated on 2025-11-11, with the latest version being 20260101. This suggests a relatively recent update cycle for the developer tools.

### What is the age rating for Nan - Packet Capture?

Nan - Packet Capture has an age rating of 17+, which is common for developer tools that may involve complex technical concepts or require a mature understanding.

### Does Nan - Packet Capture have ads?

No, Nan - Packet Capture does not contain advertisements. As a paid application, it offers an ad-free experience for its users.

## Version history (last 5 releases)

### 20260101 — 2025-11-11

Optmized for iOS 26

### 20221010 — 2022-10-19

- ipv6 first

### 20220703 — 2022-08-04

- bug fixes

### 20220404 — 2022-03-16

- built with xcode 13 and iOS sdk 15

### 20211222 — 2021-12-22

- Memory optimization

## Apps similar to Nan

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Storm Sniffer - Packet Capture](https://appshunter.io/ios/app/storm-sniffer-packet-capture/id1610958307) | 3.9 (121) | Free | Developer Tools |
| [Debug Anywhere](https://appshunter.io/ios/app/debug-anywhere/id1555924269) | 4.6 (54) | Free | Developer Tools |
| [HTTPS Traffic](https://appshunter.io/ios/app/https-traffic/id1522630336) | 5.0 (1) | Free | Developer Tools |
| [Http traffic capture](https://appshunter.io/ios/app/http-traffic-capture/id1585539533) | 4.6 (188) | Free | Developer Tools |
| [Hodor - HTTP(s) Packet Sniffer](https://appshunter.io/ios/app/hodor-https-packet-sniffer/id1608857736) | 4.3 (23) | Free | Developer Tools |
| [Network Sniffer](https://appshunter.io/ios/app/network-sniffer/id6450956188) | 4.5 (184) | Free | Developer Tools |

## More apps by TxThinking, Inc.

- [Brook.app](https://appshunter.io/ios/app/brookapp/id1216002642)
- [Shiliew](https://appshunter.io/ios/app/shiliew/id1217072703)
- [mitmproxy client by txthinking](https://appshunter.io/ios/app/mitmproxy-client-by-txthinking/id1528537342)
- [菜根谭](https://appshunter.io/ios/app/id1565952174)
- [Server Dashboard](https://appshunter.io/ios/app/server-dashboard/id1571021877)

All apps by TxThinking, Inc.: https://appshunter.io/developer/1634589596

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-20.*