Featherline
Log doses, see your routine, keep your records private.
A thoughtful medication tracker
Featherline is a medication tracker built for people on long-term hormone therapy who want to keep their personal records private.
Build a personal medication schedule, daily or weekly. Get reminders at dose times, with quick actions to mark doses as taken, log them later, or note when you've taken something outside your plan.
Visualize your routine
Featherline shows how your dose timing flows across the day and week.
Designed with privacy in mind
- Local encrypted storage — your data stays on your device by default.
- Optional app lock with biometrics or device password.
- Optional screen-content hiding for screenshots and recent apps.
- Password-encrypted backup files you control.
Features at a glance
Custom schedules
Daily or weekly medication plans.
Smart reminders
Locally-scheduled reminders with batch logging.
7-day routine view
A weekly visualization with target-range overlays.
Month-view history
Look back at any month and drill into a day.
Personal records
Log lab values with built-in and custom fields.
Body weight input
Optional weight input for personalization.
Screens
Get the app
Featherline is a personal tracking tool, not a medical device.