Windows 10 or 11, 64-bit. This page always offers the latest build.
The builds are not code-signed, so the first launch shows a Windows SmartScreen dialog. Choose More info, then Run anyway. The SHA-256 of each file is shown above so you can check what you downloaded: in PowerShell, Get-FileHash .\Brainpower-*-setup.exe.
The guide walks through every tab and card, the limit alarms, alarm actions, schedules and cloud sync.