About

We've all reread a chat at 2am wondering “do they really care about me?” or “why am I always the one reaching out?”. Otto reads everything, counts everything, and tells you what the messages really show: who texts first, who replies in 3 minutes and who takes 3 hours, the week everything changed.

OttoKnows is published by Drift Studio, the studio of Josselin Biot, a sole trader based in Pontoise, France, who builds consumer apps.

• Your chat is read in your browser and isn't stored on our servers.
• Your messages are never used to train an AI or for advertising.
• No hidden subscription: you pay for a report when you want one.

Details in the privacy policy. A question? Write to us.