This information applies to all versions
Yes, activating DxO software, including demo versions, requires an internet connection. If you're currently offline, you'll need to wait until you're connected to activate or launch them.
Please note that starting with version 4, DxO ViewPoint is operable in offline mode for a maximum of 37 days. A notification will be displayed after 30 days of offline usage, prompting the reconnection to DxO servers. For optimal use of DxO’s most recent features and tools, it’s advisable to initiate the software while connected to the internet and to update it before any travel or disconnection. This approach guarantees access to all essential DxO functionalities, even when lacking an internet connection, for the allowed maximum duration.