# 404 Network vs knock(1)

The clearest difference is rating: knock(1) at 5.0 against 404 Network's 3.5. knock(1) also leads on in-app purchases (none vs 3) and iOS requirement (17.0 vs 26.2). 404 Network's advantage is update cadence (weekly vs every 2 months) and device support (5 vs 1). On price, ratings volume and ads there is nothing between them.

Both are free to download. 404 Network sells 3 in-app purchases, starting at $4.99 per month. knock(1) asks for nothing beyond the download.

knock(1) holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

404 Network ships an update weekly, knock(1) every 2 months. Both last shipped on October 12, 2026.

## The numbers

| Metric | 404 Network | knock(1) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (2 ratings)](https://appshunter.io/ios/app/404-network/id6760702536/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/knock1/id6762497209/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 months |
| Monetization | Freemium | **Free** |
| Size | 184 MB | 3 MB |
| Requires iOS | 26.2 | **17.0** |
| Devices | **iPhone, iPad, Mac, Apple TV, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Christine Martin](https://appshunter.io/developer/1874045866) | [Jeffrey Cousens](https://appshunter.io/developer/1877690927) |

## What reviewers say

### 404 Network

[App page](https://appshunter.io/ios/app/404-network/id6760702536)

This app offers a comprehensive suite of network diagnostic tools for iOS and macOS. It provides professional-grade features for network engineers and security enthusiasts, with options for advanced AI assistance and remote diagnostics.

**Highlights:** Real ICMP Ping with live latency charts, Visual Traceroute with hop-by-hop analysis, DNS Lookup with multiple server comparison, Port Scanner with service detection, AI Assistant powered by Claude or Apple Intelligence, Remote Sensor dispatch, NFC Toolkit

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro+ Monthly | $4.99 | per month |
| Pro+ Annual | $49.99 | per year |
| 404 Pro | $9.99 | one-time |


### knock(1)

[App page](https://appshunter.io/ios/app/knock1/id6762497209)

This utility app allows you to remotely open firewall ports on your server using a saved sequence of connection attempts from your iPhone. It supports TCP or UDP for each port and provides live feedback on the connection status.

**Highlights:** Save and reuse multiple host configurations, Per-port TCP or UDP selection, Configurable inter-packet delay, Live per-port result display, Native SwiftUI interface, No tracking or analytics

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

**In-app purchases:** none


## Frequently asked questions

### Is 404 Network free?

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

### Is knock(1) free?

knock(1) is free to download, with no in-app purchases.

### Which has better reviews, 404 Network or knock(1)?

knock(1) is rated higher. 404 Network averages 3.5 out of 5 from 2 ratings, while knock(1) averages 5.0 from 1 ratings.

### Do 404 Network or knock(1) have ads?

Neither 404 Network nor knock(1) shows ads.

### Which is updated more often, 404 Network or knock(1)?

404 Network ships an update weekly, and knock(1) every 2 months. Most recently, 404 Network was updated on October 12, 2026 and knock(1) on October 12, 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.*