Android 8.0+ · Beta release · Built with exam prep in mind
01 / A BETTER DEFAULTOPEN BOOK. CLEAR MIND.
THE NEXT CHAPTER STARTS HERE.Actual app · v3.4.44 · Android emulator
✦
Attention is a practice. Make it your default.
YOUR GOALS, UP FRONT.YOUR LIMITS, ON PURPOSE.YOUR PROGRESS, VISIBLE.YOUR NEXT CHAPTER, WAITING.
02 / EVERYTHING HAS ITS PLACE
A home screen that remembers what you came here to do.
Less switching. More studying.
Inside the actual app. Captured from v3.4.44 on an Android emulator with a test profile. Tap any screen to view it full size.
01 / SYLLABUS
See the syllabus become progress.
Track chapters, mark what you've learned and keep your next revision in sight.
02 / APPS & LIMITS
Limits you set deliberately.
Choose app timers, weekly openings and a shared daily games budget. Ordinary YouTube videos remain available unless another rule applies.
03 / STUDY
Give each session a purpose.
Choose theory or questions, use focus audio and keep your study tools close at hand.
03 / ONE THING AT A TIME
A small start. A real session.
Theory or questions? Give the next block of time a purpose. In question mode, mark each question as you finish and see your average solving time.
Try this browser demo. It does not connect to your phone or save study records.
YOUR FOCUS SPACEReady when you are
25:00
One chapter. Your full attention.
0 completed · Average: —
Start now. You don't have to feel ready.
04 / START SMALL
Set it up once. Come back to what matters.
01 — MAKE IT YOURS
Give your goals a home.
Add your exam date, choose your app limits and follow the guided tutorial.
02 — CHOOSE YOUR NEXT STEP
Make today's plan doable.
Add tasks, pick a chapter, import the material you need and start a session.
03 — KEEP SHOWING UP
Watch the work add up.
Review daily progress, your syllabus and study sessions. Adjust your plan as you learn.
A FEW THINGS TO KNOW
Clear from the start.
Is this a replacement operating system?
LOCKIN OS is an Android launcher: it changes your home screen and adds study tools. It does not replace Android or require rooting your phone.
Can I still use my normal apps?
Yes. Apps you have not chosen to limit remain available, including during study. Core utilities such as supported phone and payment apps stay accessible. Games have a shared daily budget of up to 30 minutes.
Which permissions does blocking need?
Accessibility and Usage access help enforce app limits. You decide whether to grant them and can change permissions in Android settings. Protection depends on the service running and on your phone and app versions. Channel checks may request public video metadata from YouTube.
Is it on Google Play yet?
This page offers the Android beta APK. A Google Play release is being prepared; there is no live store listing or paid subscription here.
Does it work offline?
Local tasks, imported PDFs and study records are stored on your device. YouTube channel metadata checks need internet access. Export a local backup to keep a copy of your study data and app-limit settings.
YOUR NEXT CHAPTER
Make space. Then make progress.
Start with a calmer home screen and one thing you want to finish.
LOCKIN
