Android-First Productivity•Flip to Lock In ⚡

Less scrolling.
More locking in.

The aesthetic study timer that gets you off your phone. Combines a minimalist Pomodoro clock, offline ambient sound mixing (Deep Rain, Cafe, Campfire, Brown Noise), and a physical “Flip to Lock In” gesture that silences distractions instantly.

Zero Ads or Paywalls
100% Offline Audio
Sensor-Driven Flip
lckin mascot
Lock in with me! ☕✨
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5G
lckin home dashboard and focus timer
LESS SCROLLING★MORE LOCKING IN★FLIP PHONE TO START★100% OFFLINE SOUNDS★POMODORO 25/5 & 50/10★ZERO ADS & ZERO TRACKING★RETRO PASTEL AESTHETIC★SPACE GROTESK DESIGN★ADHD & STUDENT APPROVED★LESS SCROLLING★MORE LOCKING IN★FLIP PHONE TO START★100% OFFLINE SOUNDS★POMODORO 25/5 & 50/10★ZERO ADS & ZERO TRACKING★RETRO PASTEL AESTHETIC★SPACE GROTESK DESIGN★ADHD & STUDENT APPROVED★
DEEP RAIN⚡COZY CAFE⚡CRACKLING CAMPFIRE⚡SOOTHING BROWN NOISE⚡BATTERY FRIENDLY DARK MODE⚡NO SUBSCRIPTIONS⚡STUDY SMARTER NOT LONGER⚡DEEP RAIN⚡COZY CAFE⚡CRACKLING CAMPFIRE⚡SOOTHING BROWN NOISE⚡BATTERY FRIENDLY DARK MODE⚡NO SUBSCRIPTIONS⚡STUDY SMARTER NOT LONGER⚡
Built for Modern Attention Spans

Everything You Need to Lock In.
Nothing to Distract You.

Most productivity apps keep you in the app to boost their screen time metrics. lckin is engineered with one metric in mind: your uninterrupted focus.

Pomodoro 2.0

Minimalist Pomodoro Engine

Tailor your sessions to how your brain works: Classic 25/5 Pomodoro, 50/10 Deep Work, Animedoro (40m study + 20m episode), or completely custom focus intervals.

Classic
25 / 5 min
Deep Flow
50 / 10 min
Animedoro
40 / 20 min
Exam Sprint
90 / 15 min
Zero Data

4-Channel Ambient Mixer

Mix Deep Rain, Cozy Cafe, Campfire, and Brown Noise simultaneously. Works offline in flights, subways, or low-signal campus libraries.

🌧 Deep Rain☕ Cafe Hum🪵 Campfire📻 Brown Noise
Hardware Sensor

Flip to Lock In

Place your phone face-down on your desk to automatically trigger your study session. The physical gesture trains your brain to enter focus mode.

Face-down = Locked in. Simple.
No Junk

Zero Ads. Zero Tracking.

No third-party trackers, no interstitial video ads right before an exam, no artificial streaks designed to guilt-trip you.

✓ 100% Privacy Respecting
Efficiency

Ultra-Low Battery Drain

Engineered in lightweight native Kotlin. True OLED dark mode and zero background internet pings mean you can study for 8 hours on a single charge.

⚡Less than 1.5% battery per 50m session
Built-in Ambient Sound Mixing

Offline Ambient Sound Mixer.
Zero Wi-Fi. Zero Interstitial Ads.

Streaming playlists drain your phone battery and pull you into notifications. lckin lets you craft your own cognitive soundscape on-device.

4-Channel Sound Studio

In-App Feature

Seamlessly blend all four tracks to discover your ideal study flow state

ADHD Deep Focus
Popular In-App Presets:
Brown Noise
ADHD Favorite
85%

Deep, smooth low-frequency rumble that cancels mind chatter & library distractions.

0%100%
Deep Rain
Deep Relaxation
70%

Continuous soothing precipitation with soft distant thunder undertones.

0%100%
Cozy Cafe
Focus Vibe
40%

Subtle espresso machine hums and warm ambient background coffee shop warmth.

0%100%
Campfire
Night Study
25%

Gentle timber crackles and glowing hearth atmosphere.

0%100%
Runs 100% offline — study on airplane mode without interruptions
Experience in app →
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lckin ambient sound mixer screen
App Screenshot Slot #2 (Ambient Sound Mixer UI)
Hardware Sensor Automation

Flip to Lock In.
Zero buttons. Pure instinct.

Willpower is weak; physical friction is unstoppable. When you put your phone face-down, lckin detects the gesture and starts your session automatically.

1

Choose Your Study Session

Select your interval (classic 25m Pomodoro, 50m Deep Work, or custom study block) and pick your ambient audio mix.

2

Turn Phone Face-Down

Hero Feature

The moment your phone lies face-down on your desk, built-in proximity & gravity sensors trigger your session. No clicking required.

3

Zero-Distraction OLED Lock

The screen dims completely to conserve battery. Notification popups are blocked. If you pick the phone up prematurely, lckin gently nudges you to stay on task.

Automatic Do-Not-Disturb
Zero Sensor Battery Drain
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Focus
lckin focus session screen
Session in Progress
24:59
Phone Flipped • Do Not Disturb
Audio playing: Deep Rain 🎧
App Screenshot Slot #3 (Flip Detection & Focus)
The Study Session Dilemma

Why Students Struggle to Focus.
And How lckin Fixes It.

You don't lack motivation. Your phone was intentionally engineered to steal your attention. lckin gives you back control.

The Doomscroll Loop

Studying with default phone apps
Exhausting
  • Checking your phone 'just to look at the time' and ending up 40 minutes deep in TikTok reels.

  • Streaming music from Spotify or YouTube where algorithms constantly distract you with recommended videos.

  • Setting a timer on social apps where push notifications break your train of thought every 4 minutes.

  • Feeling guilty at the end of the day because your phone battery died and your assignments aren't finished.

❌Result: 3 hours at your desk, but only 20 minutes of real deep work.

The lckin Routine

Better
Studying with lckin
  • Place phone face-down: gravity and proximity sensors lock in your session with zero tap temptation.

  • Offline 4-channel sound mixer: Deep Rain and Brown Noise play on-device without internet or ads.

  • True OLED blackout display: dims the screen completely, keeping your desk peaceful and battery fresh.

  • End your study day with tangible focus momentum and actual finished coursework.

⚡Result: Clean focus blocks, zero algorithm fatigue, and genuine peace of mind.
App Interface Gallery

Clean, Calm, and Intentional.
Every Pixel Designed to Focus.

No clutter. No flash. Just a thoughtfully crafted interface that gets out of your way so you can get your best work done.

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lckin.
Main Focus Dashboard
Main Focus Dashboard

Aesthetic countdown with quick Start button and ambient audio faders.

09:41
lckin.
Active Focus Session
Active Focus Session

Zero-distraction study mode with no ads during your focus intervals.

09:41
lckin.
Timer Durations & Controls
Timer Durations & Controls

Customize Pomodoro study & rest blocks plus Flip-to-Lock automation.

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lckin.
Daily Study Streaks & Stats
Daily Study Streaks & Stats

Visual streak tracker and session log stored privately on-device.

Ready for your actual app screenshots

All 4 phone frames have pre-calibrated slots ready to accept your high-res screenshots anytime!

public/screenshots/
Got Questions?

Frequently Asked
Questions

Everything you need to know about lckin, the offline sound mixer, and the Flip to Lock In gesture.

Yes! lckin is free to download on Android. We built this app to give students an honest, distraction-free tool without scummy subscription traps or intrusive ads during study sessions.
The Calmer, More Intentional Way to Study

Ready to stop scrolling
and start locking in?

Download lckin on your Android device today. Mix your favorite ambient soundscapes, flip your phone face-down, and unlock the focus you're capable of.

Free Download
Android 8.0+
Zero Ads
lckin study buddy mascot
"Put the phone face-down and let's get to work! ☕📚"
FOCUS • STUDY • GROW