# Network Sniffer vs Async

The clearest difference is review sentiment: Async at 86% against Network Sniffer's 71%. Network Sniffer's advantage is chart position (#197 vs unranked). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Network Sniffer sells 1 one-off in-app purchase and Async sells 4 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 12, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Network Sniffer | Async |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (188 ratings)](https://appshunter.io/ios/app/network-sniffer/id6450956188/reviews)** | — |
| Number of ratings | **188** | — |
| Positive reviews | 71.1% of reviews | **85.7% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free with in-app purchases | Freemium |
| Best chart rank | **#197** | — |
| Size | 65 MB | 49 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CHENGDU MIAOZHI TECHNOLOGY CO., LTD.](https://appshunter.io/developer/1465440799) | [Its Async](https://appshunter.io/developer/1675153477) |

## What reviewers say

### Network Sniffer

[App page](https://appshunter.io/ios/app/network-sniffer/id6450956188)

**Currently charting:** #197 Top Free · Developer Tools (US App Store)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Premium | $7.99 | one-time |


### Async

[App page](https://appshunter.io/ios/app/async/id6742540851)

Access tech news, quizzes, lessons, project ideas, and conference information. Stay updated with the latest in technology and enhance your skills.

**Highlights:** Tech news updates, Interactive quizzes, Learning lessons, Project ideas, Conference information

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Français | $2.99 | per month |
| Français | $3.99 | per month |
| Abonnement Annuel | $24.90 | per year |
| Async Pro | $44.99 | per year |


## Frequently asked questions

### Is Network Sniffer free?

Network Sniffer is free to download, with in-app purchases available.

### Is Async free?

Async is free to download, with in-app purchases available.

### Do Network Sniffer or Async have ads?

Neither Network Sniffer nor Async shows ads.

### Which is updated more often, Network Sniffer or Async?

Network Sniffer ships an update every 3 weeks, and Async every 3 weeks. Most recently, Network Sniffer was updated on October 12, 2026 and Async on October 8, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*