Study smarter.
Stay calmer.
The only app that connects your subjects, deadlines, and focus time — so you can stop juggling and start studying.
Built for the way
students actually work.
Other screen-time apps are built for everyone. Stratum is built for students — with subjects, deadlines, and sessions as first-class citizens.
Subject-Aware Timer
Every session is tagged to a subject automatically. No manual logging — your stats build themselves as you study. Per subject, per week, all time.
Deadline-to-Session Loop
Add a deadline and Stratum suggests when to study for it. Close the gap between planning and doing — without switching between four different apps.
Tasks on the Block Screen
While distracting apps are blocked, your session to-do list is front and centre. Not a blank timer — a screen with purpose and clear intent.
Start free.
Stay free as long as you like.
No paywalls on your first launch. Build your study habit first — upgrade when Stratum has earned it.
- Up to 3 subjects
- Core study timer with app blocking
- Session to-do list
- Basic deadline calendar
- 7-day stats history
- Everything in Free
- Unlimited subjects
- Full stats history & subject breakdowns
- Subject streaks and milestones
- Smart deadline → session suggestions
- Deep Focus mode (unbypassable blocking)
- Recurring scheduled sessions
- Home & lock screen widgets
- Everything in Student Pro
- Exam countdown dashboard
- Study group leaderboard
- AI-suggested study schedule
- Per-exam subject time planner
- Early access to new features