App Blocking
Block it.
TikTok, Instagram, YouTube — all silenced the moment your session starts. Break the bad habits for good, without relying on willpower.
Now available on iOS
Study with no distractions. Study smarter.
The only app that connects your subjects, deadlines and focus time — so you can stop juggling and start studying.
100%
Free to start
iOS
Available now
0
Distractions
Without Stratum
The honest truth
Your phone was
built to win.
Infinite feeds. Perfectly-timed notifications. An algorithm that knows you better than you know yourself. Willpower alone was never a fair fight.
So Stratum changes the game — it locks the apps for you.
With Stratum
Try it right here
Lock in. Right now.
Start a real focus session below. The moment the clock runs, the noise goes quiet.
ACTL3142 · Focus
25:00
Ready to focus
Silenced while you focus
TikTokBlocked
InstagramBlocked
YouTubeBlocked
SnapchatBlocked
See it in action
Everything you need.
Nothing you don't.
Focus Timer
Lock in.
Your tasks and your timer, together in one session. Pomodoro or countdown — your choice. Every minute is tracked to the right subject automatically.
Deadlines
Plan ahead.
See every deadline and exactly how far away it is. Know what's coming before it sneaks up on you — colour-coded by urgency.
Calendar
Never miss a thing.
Built by students, for students. See exactly when things are due, plan your sessions around them, and stop relying on memory.
Why Stratum
Built for students.
By a student.
Other screen-time apps are built for everyone. Stratum treats subjects, deadlines and sessions as first-class citizens.
Deep Focus
Your to-do list in front of you, distractions behind a wall. TikTok, Instagram and YouTube are silenced the instant you start.
Subject-Aware Timer
Every session is tagged to a subject automatically. No manual logging — your stats build themselves as you study.
Clear Deadlines
Add a deadline and Stratum shows exactly when it lands. Close the gap between planning and doing — in one app, not four.
4
apps in one — timer, blocker, planner, stats
$0
to download and start studying
100%
of your focus time, tracked automatically
Start today
Your future self
is already grateful.
Download Stratum, set your first block, and find out what an hour of real focus feels like.