Wait, but the user is asking specifically about "install." So maybe they need to install the app first, then activate it. Need to separate the installation steps from the activation. Also, maybe the activation is part of the installation process. Clarify that depending on the purchase, the activation key is applied during setup.
First, they should download the installer from the official website. Then install the software. After installation, during the first run, they might need to enter the activation key. If it's after installation, they'd find the activation option in the settings or account menu. sketchcut lite activation key install
Hmm, the user mentioned "activation key install." So they probably have a key from purchasing the software and need steps to activate it. Let me outline the general steps for installing and activating with a key. Wait, but the user is asking specifically about "install