OnAir

Download OnAir

OnAir has two parts, and you need both.

Before you download

The OnAir Host needs OBS Studio (28 or newer) or Streamlabs Desktop on the same PC, and the OnAir app on the tablet. The app needs the host. OnAir is independent: it is not a product of the OBS Project or of Streamlabs.

OnAir Host for Windows

A .msi installer for Windows 10 and 11 (verified on Windows 11), installed per machine: it asks for administrator permission and creates the shortcut and a “NoAr Host” rule in Windows Firewall. The program itself, its installer and its tray icon use the name NoAr. It opens in the tray and can start with the computer (on by default, can be turned off on its page).

Version 0.1.0, published on .

FileSizeSHA-256
Download the portable version (.zip)NoAr-0.1.0-windows-x64-app-image.zip50.1 MBc430330971a364529b131fd0d7c5cdce3dd8ec5ddebdc394e875ca3a4ad184a5
Download the installer (.msi)NoAr-0.1.0.msi51.2 MBf56a838fceb768f1ab36b1e2cdecaa1da7577ac941eef31fa9119d1d3a4385da
The installer is not signed yet

This version has no code signature. Windows may show “unknown publisher” or SmartScreen. To check that the file is the one we published, compare the SHA-256 in the table with that of the downloaded file (see “Check the downloaded file” below).

The address of each version is fixed and does not change once published.

  • Microsoft StoreComing soon

Silent install

To install without windows (for example on several PCs), use the standard MSI package in an administrator terminal: msiexec /i file.msi /qn.

Uninstalling

In Settings › Apps, uninstall NoAr. Uninstalling removes the shortcut, the “NoAr Host” firewall rule and the automatic start. Data stays in %APPDATA%\NoAr (including the tablet pairings); delete the folder to remove it.

Android app

For tablets with Android 10 (API 29) or newer, used in landscape. 10-inch reference, adapted to 8 and 11.

Version 0.1.0, published on .

FileSizeSHA-256
Download the APKNoAr-0.1.0.apk26.7 MBe46fd039a33ddc848b43923ae0e6ac52ad7bf2aec44c8d986d262229f1035d88
Installing from the APK (outside Google Play)

The APK is for people who do not use Google Play. Android asks you to allow installing from unknown sources for the app that opened the file (browser or file manager): tap Settings when it asks, allow it, go back and install. You can turn that permission off afterwards.

Android also has developer verification: outside Google Play it only installs apps from developers registered in that verification (in force in Brazil since September 30, 2026). If Android refuses the APK for that reason, write to support.

  • Google PlayComing soon

macOS and Linux

Host packages for macOS and Linux exist but have never been tested, so they are not available for download. They are in preparation.

Check the downloaded file

Each file has a SHA-256 (a fingerprint). Compute that of the downloaded file and compare it with the one in the table: if they differ, the file is not the published one; delete it and download again.

  • Windows (PowerShell): Get-FileHash .\file.msi -Algorithm SHA256
  • Linux: sha256sum file
  • macOS: shasum -a 256 file

Each version also publishes a SHA256SUMS file (accepted by sha256sum -c).

Requirements

  • A tablet with Android 10 or newer.
  • A PC with Windows 10 or 11, with OBS Studio 28+ (tested on 33.0.0) or Streamlabs Desktop (tested on 1.22.2).
  • Tablet and PC on the same local network. Once installed, OnAir does not need the internet.

See the manual for first setup and the Privacy Policy to learn what OnAir stores.