Comparison

RustDesk Remote Desktop vs knock(1)

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

RustDesk Remote Desktop

This open-source application provides remote desktop access and control capabilities. It allows users to remotely manage their computers. Please note it only supports controlling other devices, not being controlled or screen sharing.

Highlights
  • Open-source remote desktop
  • Remote access and control
  • TeamViewer alternative
  • Control other devices
Features
Read full description

An open-source remote desktop application. The open source TeamViewer alternative. Source code: https://github.com/rustdesk/rustdesk Doc: https://rustdesk.com/docs Please be reminded that this app only has the ability to control, and it does not have the functionality of being controlled or screen sharing. WARNING: YOU MAY BE BEING SCAMMED! If you are on the phone with someone you DON'T know AND TRUST who has asked you to install RustDesk, do not install and hang up immediately. They are likely a scammer trying to steal your money or other private information.

About

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.

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
Read full description

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

RustDesk Remote Desktop4 screens
knock(1)4 screens

Verdict

The call

The clearest difference is rating: knock(1) at 5.0 against RustDesk Remote Desktop's 4.2. RustDesk Remote Desktop's advantage is ratings volume (77 vs 1) and device support (3 vs 1). On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

knock(1) holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: RustDesk Remote Desktop has 77 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 19, 2026 and October 12, 2026 respectively.

Scorecard4 real differences · 6 level
RustDesk Remote Desktop versus knock(1): the parameters behind the verdict, then further details
ParameterRustDesk Remote Desktopknock(1)
PriceFreeFree
Rating4.2 (77 ratings)5.0 (1 ratings) — better
Positive reviews59.4% of reviews—
Number of ratings77 — better1
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better17.0
Further details — not scored
Size69 MB3 MB
Age rating4+4+
DeveloperPurslane LimitedJeffrey Cousens

Bugs and requests

RustDesk Remote Desktop

Reported bugs

38 issues
  • Recent update broke iPad mouse alignment
  • No image displayed from PC (black screen)
  • Remember Password function doesn't work
  • Black screen when remoting into Raspberry Pi Linux server (Wayland)
  • Keyboard issues when remoting from iPhone to PC
Show 33 more
  • Cannot control Mac
  • iPad app fails to connect or shows key mismatch error
  • App crashes or becomes unresponsive
  • Connection issues over mobile data network
  • Session closes after a short period
  • Key presses duplicated or not registered with external keyboard
  • Settings/Preferences not preserved
  • iOS language icon covers toolbar collapse icon
  • Previous direct IP sessions not saved
  • Enter key does not work in address bar
  • Copy/Paste broken
  • Latest update deleted saved connections
  • App not responding after update
  • Connection Error, Operation not permitted (error 1) on iOS
  • Mouse overflows monitor content, preventing clicks on edges
  • Double-clicking behavior in touch mouse/pad options
  • App launches but window vanishes on old iPads
  • Crash on app startup (v1.2.7, iOS 12.2)
  • Cannot paste remote ID by holding text input
  • iOS client attempting to control Android results in frozen interface
  • Cannot control Windows PC typing from iPhone
  • Version 1.2.7 has issues on iPad (cannot launch)
  • Address book empty on Pro version
  • Arrow keys do not function like a desktop keyboard
  • Phone heats up during use
  • Mouse pointer on desktop and iPad not lined up
  • Flakey behavior with keyboard and trackpad on iPad
  • Scaling displays issues on iPad
  • Key mismatch error with iPad app
  • Virtual machine control issues (keyboard repeats or fails to register)
  • Mobile network connection issues
  • Cannot connect over mobile data network
  • UI icon not centered

Requested features

13 requests
  • Add option to view and modify USB drives in file transfer mode
  • Improve mouse and keyboard control configurability
  • Allow Apple Pencil to function as a mouse
  • Support iPhone remote control of each other
  • Add option to automatically switch display/monitor to follow remote window focus
Show 8 more
  • Sync remote ID list by iCloud
  • Improve Wayland support
  • Add option to change two-finger gesture behavior (scroll vs. move canvas)
  • Center remote screen when zooming
  • Remap controls for mouse actions
  • Integrate arrow keys with device keyboard
  • Support iPhone to Android control
  • Support Windows remote typing from iPhone

knock(1)

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

RustDesk Remote Desktop

No in-app purchases

None

knock(1)

No in-app purchases

Questions

Is RustDesk Remote Desktop free?
RustDesk Remote Desktop is free to download, with no in-app purchases.
Is knock(1) free?
knock(1) is free to download, with no in-app purchases.
Which has better reviews, RustDesk Remote Desktop or knock(1)?
knock(1) is rated higher. RustDesk Remote Desktop averages 4.2 out of 5 from 77 ratings, while knock(1) averages 5.0 from 1 ratings.
Do RustDesk Remote Desktop or knock(1) have ads?
Neither RustDesk Remote Desktop nor knock(1) shows ads.
Which is updated more often, RustDesk Remote Desktop or knock(1)?
RustDesk Remote Desktop ships an update every 2 months, and knock(1) every 2 months. Most recently, RustDesk Remote Desktop was updated on October 19, 2026 and knock(1) on October 12, 2026.

Other comparisons