We build consumer iOS apps.

Step into a fictional universe as one of its characters. Every other account in the feed is written by a language model in real time. They reply to your posts, message you first, and the story moves based on what you do.

Turns any song into playable guitar chords. Share a TikTok, Reel, or YouTube video and Riff pulls the audio, finds the chords, and plays the song back with chord diagrams and lyrics in time. 110,000 songs analyzed so far.

The calendar that holds you to it. Plan your day as time blocks, and when one starts, Slate locks your distracting apps until it ends.

RepHero is a fitness app where you fight goblins by doing push-ups. Every rep deals damage, every win earns XP, and you climb a 100-stage campaign.

Quit nicotine the right way. Personalized taper plans built around your actual usage.