Sagitech VMS vs knock(1)
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sagitech VMS
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Sagitech VMS is a professional software for building hybrid video surveillance systems. Sagitech features a unique intuitive interface, low hardware resource requirements and high reliability. Support for the vast majority of cameras from various manufacturers (more than 2.000 cameras), interactive archive search functions based on a set of features, automatic model detection and camera auto-detection technologies on the network, hierarchical security system and much more! The Sagitech VMS mobile client allows you to instantly connect to your video surveillance system at any time from anywhere in the world using your iPhone/iPad. The main functions of the client are simultaneous viewing of several IP/Web cameras with the creation of viewing profiles, navigation through the video archive with the possibility of accelerated viewing, control of rotary devices.
knock(1)
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.
- 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
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Knock is a minimal, native port-knocking client for iOS. Open ports in your firewall - SSH, VPN, admin panels - by sending a saved sequence from your iPhone. Save named configurations with a host, a list of ports, a delay, and a timeout. Each port can be independently TCP or UDP. Run the sequence with a single tap and watch each knock's result stream in live. FEATURES • Save and reuse multiple host configurations • Per-port TCP or UDP selection • Configurable inter-packet delay and socket timeout • Live per-port result display • Clean SwiftUI interface, native look and feel • No tracking, no analytics, no accounts HOW IT WORKS Port knocking is a technique for opening firewall ports on demand: your server watches for a specific sequence of connection attempts (for example, TCP/7000, UDP/8000, TCP/9000), and only opens a protected service like SSH after seeing the right pattern. knock(1) lets you send those sequences from your phone, allowing you to connect to your servers on the go. COMPATIBLE knock(1)'s behavior matches the reference jvinet/knock client - if your server runs knockd, knock(1) works out of the box. PRIVACY knock(1) connects only to the hosts you configure. It does not send telemetry, does not use analytics SDKs, and does not require an account. Your saved configurations stay on your device.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Sagitech VMS | knock(1) |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | — | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 12 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Sagitech Lab S.L. | Jeffrey Cousens |
In-app purchases
Sagitech VMS
No in-app purchases
knock(1)
No in-app purchases









