Dark Logger: Migraine Tracker

ZephLogic

In-app purchases

About this app

Built for the reality of severe migraines. When an attack hits, staring at a bright white loading screen or navigating five complicated menus is pure torture. You need to log your symptoms and put your phone away.
Dark Logger is a strictly offline, photophobia-friendly migraine diary designed specifically for high cognitive load and extreme light sensitivity.
No accounts to create. No cloud syncing. No bloatware. Just a fast, soothing interface that respects your eyes and your privacy.
### KEY FEATURES:
🕶️ ULTRA-LOW CONTRAST UI
True dark mode with muted colors. Designed to minimize visual strain and avoid triggering photophobia during an active aura.
🔒 100% OFFLINE & PRIVATE
Your medical data is nobody's business. There is no cloud, no tracking, and no data collection. Everything stays strictly on your device's local storage.
⚡ 1-TAP QUICK LOGGING
When the pain starts, just tap the main button to instantly timestamp the attack. You can fill in the pain scale, symptoms, and triggers hours later when you feel better.
📄 EASY DATA EXPORTS
Stop handing over messy handwritten notes. Dark Logger automatically generates clean 30-day and 90-day PDF summaries, highlighting total episodes, average pain, and top symptoms to help you spot trends instantly.
⛈️ 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.
### DESIGNED WITH EMPATHY
When dealing with severe photophobia, the last thing you want to do is navigate bright screens and complex menus. I couldn't find a tracker that was purely dark, completely offline, and fast enough to use during an attack—so I built one. Dark Logger is a passion project designed to make logging as frictionless as possible.

Ratings and reviews

The home screen "attack started" is in the way of the daily log. A way to remove wrongly added "attacks" when pressed accidentally. A way to add more than one medication and even a "additional notes" option for attacks would be great.

I haven't used the app for too long but I wish there was a larger tracking section with more options/your own options and more so, a section for premigraine symptoms. I have vestibular migraines and it would be nice to have a bigger, more customizable tracking section

It doesn't show the barimetric info and I paid for the full subscription :/ and the layout of being mom, Tues, Wed, Thurs, Fri, sat then sun, instead of sun, Mon, etc is confusing and annoying.