Dark Logger: Migraine Tracker

In-app purchases
4.8
20 reviews
Content rating
Everyone
5K+
Downloads
Content rating
Everyone
In-App Purchases
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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.
Updated on
Jun 29, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Location
Data isn’t encrypted

Ratings and reviews

20 reviews
Niccii Starr
May 13, 2026
Very simple to use migraine tracker with one tap to start and stop. There's a pop up screen to select common migraine symptoms to make it easy for users to add details about the type of migraine attack. I wish I could add my own notes for personal symptoms though.
3 people found this review helpful
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ZephLogic
May 13, 2026
Thank you SO Much for your review Feedback received on Notes. Sounds like a good idea and we are now considering it
Sunil Kohli
May 16, 2026
Useful and easy app. Good development.
Did you find this helpful?
ZephLogic
May 17, 2026
Thank you so much 🙏
deepika kohli
May 17, 2026
Excellent App. very helpful.
1 person found this review helpful
Did you find this helpful?
ZephLogic
May 17, 2026
Thank you so much 🙏