Ed-tech · New York
Writing Process Visibility for Teachers
Teachers had no reliable way to tell how a student's work was actually written. AI detection scores guess, and guessing wrong has real consequences for a student.
Revision History replays a document from first keystroke to final draft, so the process is visible instead of inferred.
Two products, built from zero on a three-person team. Slide replay extends that visibility from Google Docs to Google Slides. Byline lets students use AI openly while giving teachers visibility into how — rather than trying to keep AI out of student writing altogether. Both run on architecture and data pipelines built from reverse-engineered, undocumented structures.
Used by 200,000+ teachers.



