Clockin Duo, for two people trying to do things together

Field notes

The product organizes three shared activities around a fixed two-person room: a countdown with a common goal, synchronized playback from a pasted link, and turn-based games. Its examples include a 25-minute grant-draft session, a 1.5-second synchronization claim, paired clocks for different time zones, and a meetup countdown showing city and flight status. The page states that free accounts include one focus session per day, while the $6 monthly plan covers both participants.