Focus fuel

Focus fuel

In-app purchases

About this app

Every minute you focus builds something real.

Focus Fuel turns your productivity into a construction project. Start a focus timer, and a crew of animated workers breaks ground on a new building — from Cozy Cottages to Luxury Villas. Stay focused and watch your house rise. Quit early, and it crumbles.

Your sessions shape a persistent living world that thrives when you're consistent and decays when you're not. It's productivity you can see.

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🏗️ FOCUS TIMER
• Quick-start presets: Pomodoro (25 min), Deep Work (50 min), Quick (15 min)
• Custom timer from 5 to 120 minutes
• Full Pomodoro structure with configurable work, short break, and long break durations
• Pause, resume, or complete early (at 80%+ progress)
• Motivational progress updates as you build

🏠 BUILD REAL STRUCTURES
• 5 house tiers unlocked by session length — from cottages to villas
• Watch your animated crew carry materials, hammer walls, lay bricks, and raise the roof in real time
• Meet the crew: Dave "The Boss", Mike "Hammerhand", Tony "Brickwall", Sam "Muscles" & Jake "Sky Walker"
• Earn coins for every minute of focus

🌍 YOUR LIVING WORLD
• A persistent world that grows with your focus and decays from inactivity
• Health, growth, and decay systems track your habits visually
• Streaks reward consistency; missed days trigger gradual decay
• Watch your world thrive, stabilize, or struggle — it reflects your real habits

🎵 AMBIENT SOUNDS (NO ADS, NO DOWNLOADS)
• 6 mathematically synthesized soundscapes — no audio files needed
• White Noise, Brown Noise, Gentle Rain, Ocean Waves, Lo-fi Drone, and Focus Beats (binaural alpha waves)
• Auto-plays during sessions with full volume control

🔒 FOCUS LOCK
• One-tap Do Not Disturb mode blocks notifications and distracting apps
• Automatically activates during focus sessions
• Grace period system: a 10-second warning if you leave the app mid-session

📊 DEEP INSIGHTS & ANALYTICS
• Hourly and monthly focus distribution charts
• Session success rate tracking
• Weekly consistency score (0–100%)
• Peak focus times, best streaks, and detailed session history
• Performance-based tips tailored to your habits

💌 MESSAGES FROM YOUR FUTURE SELF
• Weekly auto-generated letters based on your real performance data
• Three tone categories: thriving, improving, or struggling
• Personalized with your actual stats — sessions, minutes, streaks, and consistency
• Archive of past messages to track your growth over time

🎯 DAILY GOALS & STREAKS
• Set a daily focus goal (15–480 minutes)
• Visual progress ring on your home screen
• Current streak and best streak tracking
• Consistency scoring that weighs active days, completion rate, and streak length

🔐 100% PRIVATE
• All data stored locally on your device
• No cloud sync, no tracking, no third-party analytics
• Purchases processed securely through Google Play

⭐ PREMIUM (ONE-TIME PURCHASE)
• Unlimited focus time (free tier: 30 minutes)
• All themes unlocked (Ocean, Forest & more)
• Advanced analytics with detailed charts
• Regenerate Future Self messages anytime
• Exclusive building designs and workers
• Premium motivational quotes
• No ads, ever
Start building your world — one focused session at a time.

What’s new

Welcome to Focus Fuel — your productivity companion!
• Build houses by staying focused — the longer you focus, the bigger the building
• Track your focus sessions with detailed analytics
• Write messages to your future self, and track weekly monthly insights
• Ambient sounds and focus music to help you concentrate
• Do Not Disturb mode during focus sessions
• Premium features: Crystal Tower, Sky Fortress & Dragon Castle buildings, advanced analytics, exclusive quotes, and App Blocker Pro