LockinBuilt for What Students Actually Need
How re-reading fails you
Rote memorization wastes your time and actively holds you back
Passive Review
- Re-reading notes for 6 hours straight, only to get lost on actual exam problems.
- Falling into the illusion of competence because the page looks familiar.
- Suffering from the forgetting curve and losing 80% of what you read within 48 hours.
Active lock-in
- Ace exam problems with absolute confidence from focused test preparation.
- Minimize low-quality work sessions and distractions.
- Review past topics less by using high-retention study techniques in the first place.
Three steps to lock in
Optimize your focus and studying in three easy steps.
Set the atmosphere
Lockin helps you bridge the gap between procrastination and flow state with a custom physical and mental checklist.
Track focus with flow mode
Lockin synchronizes instantly across all tabs. Close the tab, open it elsewhere — your timer remains synchronized.
Switch from input to retrieval
Lockin integrates active recall directly into your dashboard. Build question databases, track your progress, and improve through practice.
Everything you need, quietly running
Just the fundamental tools you need for deep work.
Pomodoro timer
Fully synchronized Pomodoro timer featuring dynamic break scheduling, subject tagging, and a practice problem database.
Practice mode
Create questions and practice sets directly in your dashboard. Test yourself with active recall checks to keep track of difficult concepts and problems.
Subject tagging
Organize study sessions by topic or class. Track your time invested in each subject.
Stats dashboard
Monitor focused hours and tag distributions. Analyze logs and weekly patterns to verify if today was more productive than yesterday.
Keyboard shortcuts
A zero-mouse interface. Use shortcuts to dynamically control timer states.
Free to start, Pro to go deeper
Start free. Upgrade when you need unlimited sets, stats, and themes.
$0
For getting started
- Pomodoro clock
- Up to 3 folders
- Up to 3 problem sets
$2.99/mo
After your 30-day free trial
- Pomodoro clock
- Unlimited folders & problem sets
- Studying statistics
- Custom themes
30-day free trial · Then $2.99/mo · Cancel anytime · Payments secured by Stripe
Passive review is a comforting lie. Lockin is built for active recall.
In his bestselling book How to Become a Straight-A Student, Cal Newport highlights a core cognitive reality: most students spend hours re-reading notes or highlighting textbooks, which creates a false "illusion of competence." They recognize the words, so they assume they know them.
Cognitive science indicates that true learning only happens through retrieval practice—the difficult, active process of forcing your brain to retrieve knowledge.
Lockin replaces passive cramming with active self-testing. By wrapping deep focus sessions with structured activation routines and integrated self-testing lists, we ensure you study less, but study deeper.
How to
Become a
Straight-A
Student
Active Recall Strategies