Any adult in the group can start 30 days of Plus from the group plan screen, with no card and no automatic charge. The trial includes up to 5 GB of new uploads. Buying Plus or Together during the trial starts the paid subscription immediately. Plus covers one group. Together covers up to five of the payer’s groups; unused slots can be filled any time, and moving coverage waits until the billing period ends. One subscription covers everyone in each covered group.