# Sagitech VMS vs knock(1)

The clearest difference is device support: Sagitech VMS at 3 against knock(1)'s 1. Sagitech VMS also leads on iOS requirement (12.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Sagitech VMS | knock(1) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/knock1/id6762497209/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Monetization | — | Free |
| Size | 12 MB | 3 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Sagitech Lab S.L.](https://appshunter.io/developer/1853802959) | [Jeffrey Cousens](https://appshunter.io/developer/1877690927) |

## What reviewers say

### Sagitech VMS

[App page](https://appshunter.io/ios/app/sagitech-vms/id6755425448)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 Sagitech VMS free?

Sagitech VMS is free to download, with no in-app purchases.

### Is knock(1) free?

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

### Do Sagitech VMS or knock(1) have ads?

Neither Sagitech VMS nor knock(1) shows ads.

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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.*