Privacy policy
Last updated 9 November 2026
Who we are
TWELVE is an invigilation check system made by Keystone Labs. Schools use it so that teachers can record test-room checks by scanning a QR code, and so that the principal can see those reports live. The school decides who can use TWELVE; Keystone Labs runs the service for the school.
What we collect
- Staff and admin details the school enters: name, email address and role (teacher, floor incharge, principal or coordinator).
- Sign-in details: when you sign in with Google we receive only your name, email address and profile picture from Google. We do not receive your password or access your Gmail, Drive or any other Google data.
- Reports: the room, the time, the answers to each check, attendance counts, and the names of students recorded as not attempting the paper, as entered by the teacher.
- Technical data: a sign-in cookie that keeps you signed in, and standard server logs.
How we use it
Only to run TWELVE for your school: to let listed staff sign in, to save and show test-room reports, and to alert the school's principal and coordinators about problems. We do not sell personal data, show advertising, or use the data for any other purpose.
Who can see it
People your school has listed as admins (principal, coordinators) can see reports and the staff list. Teachers see only their own check flow. Our service providers store and serve the data for us: Supabase (database and sign-in) and Vercel (hosting). Google provides the "Continue with Google" sign-in.
How long we keep it
Reports and staff records are kept for as long as the school uses TWELVE. The school can edit or delete staff, rooms and other records at any time, and can ask us to delete all of its data.
Your choices
You can ask your school's admin, or us, to see, correct or delete your details. If you are removed from the staff list you can no longer sign in.
Contact
Questions about this policy or your data: ahnaf7624@gmail.com