Your wrist doesn't nag on a schedule. Flinch uses random-interval nudges — the same psychology behind slot machines — to build habits that actually stick. No streaks. No gamification. Just a sharp little reminder when you least expect it.
Variable-ratio reinforcement is the most effective conditioning schedule in behavioral psychology. Flinch puts it on your wrist.
Features:
• Define custom habits with personalized nudge text
• Random-interval wakeups throughout the day — never predictable
• Per-habit active hours, frequency range, and vibration pattern
• 5 vibration patterns: Gentle, Normal, Strong, Double Tap, Triple Tap
• Quick mute: long-press SELECT to silence all nudges for 30 minutes
• Mute status visible per-habit with countdown
• Optional acknowledgment tracking (tap SELECT = "I did the thing")
• Daily acknowledgment count per habit
• Dark-themed config page with clean card-based UI
• Zero backend, zero cloud, zero accounts — everything on watch + phone
• Survives watch reboots (uses Pebble wakeup API)
Build a habit. Break a habit. Flinch doesn't care which — it just nudges.
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