100% Offline & Private

Built for the reality of severe migraines.

A photophobia-friendly diary designed specifically for high cognitive load and extreme light sensitivity. No accounts. No cloud. No torture.

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"I couldn't find a tracker that was purely dark, completely offline, and fast enough to use during an attack — so I built one."

The Founder's Story

Designed with Empathy.

When the pain starts, you shouldn't have to navigate five complicated menus. Dark Logger respects your eyes and your cognitive state.

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Ultra-Low Contrast UI

True dark mode with muted colors. Designed to minimize visual strain and avoid triggering photophobia during an active aura.

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100% Offline & Private

Your medical data is nobody's business. No cloud, no tracking, and no data collection. Everything stays strictly on your device.

1-Tap Quick Logging

Just tap the main button to instantly timestamp the attack. Fill in the details hours later when you feel better.

Weather & Pressure Tracking.

Automatically log the barometric pressure and weather conditions at the exact moment of your attack to see if environmental drops are your hidden trigger.

  • Automatic pressure detection
  • Local weather snapshots
  • Correlation insights
Weather Tracking Interface

Professional Data Exports.

Stop handing over messy handwritten notes. Dark Logger automatically generates clean 30-day and 90-day PDF summaries to help you spot trends instantly.

  • 30/90 Day PDF Summaries
  • Average pain tracking
  • Top symptoms & triggers
Data Export PDF Preview

Respect your recovery.

Experience a migraine diary that understands the torture of bright lights and complex interfaces.