DimLog: Migraine Tracker
One-tap headache log, no glare
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Log a headache with a single tap — even when light hurts. A pure black, low-glare design built for migraine days.
DimLog is a headache and migraine diary designed for the moments when looking at a screen is hard.
ONE TAP, EVEN IN PAIN
Tap Mild, Moderate or Severe and you're done. The buttons sit at the bottom of the screen, within reach of your thumb. Made a mistake? Tap Undo. Pain got worse? Tap again and the record is updated — never duplicated.
BUILT FOR LIGHT SENSITIVITY
A true black background, dimmed gray text and muted colors keep the light your screen gives off to a minimum. No flashy animations, no ads.
LOG FROM YOUR HOME SCREEN
Add the DimLog widget and log a headache without opening the app. The button you tapped stays checked, so you know it was recorded.
SEE YOUR MONTH AT A GLANCE
The calendar shades each day by its strongest headache and marks days you took medication.
REPORTS FOR YOUR DOCTOR
See a one-page A4 report for any month, or for the four weeks up to a day you choose: headache days and episodes, intensity and impact on daily life, and a calendar showing the intensity for each time of day and when you took medication. Viewing the report in the app is free. Saving, printing and sharing it as a PDF, and zooming in, is a one-time in-app purchase.
ADD DETAILS LATER, WITHOUT THE TYPING
- Time of day: Early morning, Morning, Afternoon, Evening or Late night — no need to remember the exact time
- Impact on daily life: Minor, Half capacity or Bed rest
- Medications picked from your own history
- Free-form notes
PRIVATE BY DESIGN
Your records stay on your iPhone. DimLog has no account, sends nothing to any server, and uses no analytics or tracking.
DimLog is free to download and use. PDF export of reports is an optional one-time purchase — no subscription.
DimLog is a personal logging tool and is not intended to diagnose, treat, or prevent any medical condition. Always consult a healthcare professional about your symptoms.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- New headache reports: tap the report button on the home screen to see a one-page summary and calendar for any month (swipe between months) or for the four weeks up to a chosen day.
- Save, print and share reports as PDFs, and zoom in to read the details, with a one-time purchase. Viewing the report in the app stays free.
- The Tip Jar has been removed.
The developer, Kenji Morimitsu, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Kenji Morimitsu
- Size
- 1.9 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- PDF Reports $2.99
- Copyright
- © 2026 Web Studio Sinc