Duolingo

If you're sharing the Duolingo Max plan, you'll be given a selection of nudges to use. These are pre-filled with that user's data (like their current streak).

Duolingo will encourage you to nudge friends (in a single tap), which acts as a hook to bring them back into the app.

If you extend your streak early in the day, Duolingo will reward you by telling you how well you did compared to everyone else.

If you’re on a Duolingo family plan, you’ll see all of your avatars together in a banner.

To give you a shot of motivation, Duolingo will tell you when you've broken a daily record.