Two export files in. A clear picture of who follows back.
From your Instagram data export: following.json, and followers_1.json — plus any followers_2.json, … if Instagram split the list.
No analytics. No tracking.
duet does the one job it was built for: turning two export files into clear reports. No accounts, no analytics, no tracking.
Reports expire 7 days after analysis — after that, their links stop resolving. Re-upload your files any time to generate fresh ones.