DeepFlow: Pomodoro Focus Timer

Build laser-sharp concentration, overcome distractions, and enter deep flow.

DeepFlow is a 100% offline, privacy-first Pomodoro focus timer and real-time ambient sound synthesizer. Designed for software developers, students, writers, remote workers, and ADHD minds seeking structured, uninterrupted concentration.

Zero accounts. Zero cloud sync. Zero telemetry. Just pure mathematical audio and distraction-free time management.

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🎧 REAL-TIME PROCEDURAL SOUND SYNTHESIZER
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Unlike standard noise apps that replay short, repetitive audio files with jarring loop seams, DeepFlow uses real-time mathematical Digital Signal Processing (DSP) to generate endless, organic soundscapes at 44.1 kHz stereo:

• Science-Backed Color Noise: White noise for crisp masking, Pink noise for reading, and deep Brown noise (popular for calming racing thoughts and ADHD sensory focus).
• Nature & Weather Engines: Heavy Rain on glass, Rolling Thunder, Forest Birds, Ocean Waves, Mountain Wind, Night Crickets, and Campfire.
• Atmospheric Focus: Warm Cafe Murmur, Library Silence, and Train on Tracks.
• Binaural Brainwave Entrainment: Alpha Waves (10Hz for creative flow & writing), Beta Waves (18Hz for coding & logic), Theta Waves (6Hz for meditation), and Gamma Waves (40Hz for working memory).
• 3-Channel Multi-Track Mixer: Layer up to 3 sound engines with independent volume controls to design your personal study soundscape.

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⏱️ FLEXIBLE DEEP WORK INTERVALS
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Adapt your focus session to your personal cognitive rhythm:
• 25 / 5 Pomodoro: The classic 25-minute sprint followed by a 5-minute break.
• 50 / 10 Split: Extended intervals ideal for programming, deep research, and writing.
• 90m Ultradian Rhythm: Align your work blocks with natural 90-minute human energy cycles.
• Open Flow Mode: An uninterrupted count-up timer for open-ended creative sessions.
• Custom Interval Timer: Set your own exact focus and break durations.

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📱 PHYSICAL FLIP-TO-FOCUS AUTOMATION
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Eliminate digital phone distractions with hardware sensor automation. Turn your device face-down on your desk to automatically start or resume your focus timer. Lift your phone to pause. No buttons required.

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🫁 MINDFUL BREAKS & STOIC WISDOM
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Resting your brain between sessions prevents cognitive burnout:
• Box Breathing Pacer (4-4-4-4): Guided visual and haptic breathing to regulate heart rate variability and reduce stress.
• 50+ Stoic & Focus Quotes: Offline philosophical reflections from Marcus Aurelius, Seneca, and modern deep-work thinkers.
• Quick Break Extensions: Add extra rest minutes with a single tap.

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📊 PRODUCTIVITY METRICS & 100% DATA PRIVACY
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• Track daily focus minutes, session completion streaks, and cycle history.
• Tag sessions with custom categories (#Coding, #Study, #Writing, #DeepWork).
• Full Data Sovereignty: Export your complete session logs anytime to CSV or JSON.
• Pure OLED Black Theme: True black design that saves battery on AMOLED displays.
• Completely Offline: Every sound calculation and session database record stays strictly on your local device.

Master your attention and accomplish your most meaningful work with DeepFlow.