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Install the Nanus desktop app

Download and install Nanus on Windows, macOS or Linux: which file to choose, how to verify it and what happens the first time you start it.

Where to find it
nanus.it website → Download

Available in the desktop app.

What it is for

The desktop app is the same Nanus, installed on your computer: data is kept in a folder on the computer and you can work offline (sending invoices to the SDI or contacting support still needs the internet). It asks for no account: it opens directly. With the Free plan you can issue up to 100 documents a year.

Which file to choose

  • Windows 10 or 11, 64-bit: the .exe installer is the recommended choice and installs Nanus for your user; the .msi package is meant for company networks.
  • macOS 11 or later: one file for Macs with Apple Silicon (M1 or newer) and one for Macs with an Intel processor.
  • Linux: AppImage, .deb package (Debian, Ubuntu) or .rpm package (Fedora, openSUSE).

If the Download page says Coming soon for your system, the package has not been published yet: meanwhile you can use Nanus in your browser.

How to do it

  1. Open the Download page of nanus.it and download the file for your system.
  2. If you like, verify the file: next to each file there is its SHA-256 fingerprint; compute it on your computer (in PowerShell with Get-FileHash, in the Terminal with shasum -a 256) and compare it with the one on the page.
  3. Open the downloaded file and follow your system’s installation.
  4. Start Nanus: after the start-up screen the initial setup opens, where you enter your company details or bring your data from another installation with a backup.

After installing

  • Every day Nanus saves a copy of your data by itself; in Settings → Import and backup → Backup and restore you see which folder and how many copies it keeps.
  • Updates arrive by themselves and install when you close the app, or straight away with Update now.
  • To remove the Free limit, paste the licence key generated in the cloud into Settings → Subscription.
  • You can connect the app to your cloud account or share the data with the other office computers over the local network, from Settings → Users and sign-in.
  • Nanus opens only once: if you start it again, the window already open comes to the front. Closing the window shows Close Nanus?, because unsaved changes would be lost.

Common problems

  • Nanus fails to start: close and reopen the app. If the problem persists, send support the log file shown on the same page.
  • With the .msi, .deb or .rpm package, updates ask for the administrator password: this is normal.

Before reinstalling or changing computer, download a backup from Backup and restore: the data lives in the app’s folder on that computer.

Frequently asked questions

Do I need an account to use the desktop app?

No, it opens directly. An account is only needed to connect it to the cloud or for sign-ins over the local network.

How do I move my data from one computer to another?

On the old computer download the backup; on the new one, in the initial setup, choose to bring your data with a backup and select the file.

See also