You can install the ALiS desktop app for Windows or Mac below. To attend live sessions in the app you will need a free ALiS Guest account:

ALiS for Windows

Minimum system specification:

2 GB of total system RAM

Intel HD 4000 Graphics or comparable

1GB of available space on your Hard Drive

Windows 7 or newer

ALiS for macOS

Minimum system specification:

2 GB of total system RAM

Intel HD 4000 Graphics or comparable

1GB of available space on your Hard Drive

Mountain Lion or newer

ALiS Portable for Windows

Carry this with you on a USB stick.

Minimum system specification:

2 GB of total system RAM

Intel HD 4000 Graphics or comparable

1GB of available space on your Hard Drive

Windows 7 or newer