Download

The app runs on your computer. Adding a server, checking it and installing the monitoring all work right away, with no account.

Latest version: 1.5.1

macOS arm64 · dmg macOS x86-64 · dmg Linux x86-64 · AppImage Linux x86-64 · deb Windows x86-64 · exe

What changed

Fixed: on Windows, version 1.5.0 closed a few seconds after launch. If you have 1.5.0 on Windows, download 1.5.1 from the website and install it over the old version.

Your system will warn you on first launch

The installers are not signed with a developer certificate yet, so both Windows and macOS treat them as coming from an unknown publisher.

Windows: SmartScreen says "Windows protected your PC". Click "More info", then "Run anyway".
macOS: Gatekeeper refuses to open the app. Open System Settings → Privacy & Security, find the message about the blocked app and click "Open Anyway".
Linux: no warning — the .deb and .AppImage install as usual.

A developer certificate has not been bought yet. Updates, however, are signed: the app will not install an update whose signature fails the check — so the program cannot be swapped.

How to tell the file was not swapped

Until the installers carry a certificate, a checksum is how you verify them. Compute the checksum of the file you downloaded and compare it with the one printed here: if they match, nothing touched the file on the way.

macOS arm64 · dmg49b1e0c07f9a39b95e062e9558ed12d279e7f20ecca37d83bad3c04beb232967
macOS x86-64 · dmg49b1e0c07f9a39b95e062e9558ed12d279e7f20ecca37d83bad3c04beb232967
Linux x86-64 · AppImageb471ca75e8c97dcdf908d369d4aaaab716b8910608f7b8e7680388f0bd06e576
Linux x86-64 · deb2fca09c558bb26273e0f758e88235ac6c3d75326e86d1e68ec6f9eb8168d0048
Windows x86-64 · exe6f745bdab1720da44e0a0edfab07eb339396ba9cf4f63d4d2166e64c4d94be11

Windows: Get-FileHash .\file -Algorithm SHA256 · macOS: shasum -a 256 file · Linux: sha256sum file

What the app installs on your server can be checked in advance too — its code is open and every version is signed. What runs on your server →

What you will need

A Linux VPS with SSH access as root, or as a user with passwordless sudo
One free port on it. Ports 80 and 443 may stay with the site already running there — the monitoring takes another one.
A domain whose A record already points at that server

Read the setup guide

Ask an AI about vpsFocus

Not sure whether to put it on your server? Ask ChatGPT or Claude — they will read our description for AI assistants and answer your questions.

Ask ChatGPT Ask Claude