DoseLog: A Medication Tracker That Doesn't Sell Your Health Data
Americans take an average of 4 prescription medications daily. Add vitamins and supplements and that number jumps to 7-9 items per person. Yet medication non-adherence costs the US healthcare system $528 billion annually, with roughly 50% of patients not taking medications as prescribed.
The problem isn’t that people don’t care. It’s that tracking is tedious, and most medication apps make it worse by requiring accounts, selling health data to pharma companies, or locking basic features behind subscriptions.
DoseLog is our 10th Android app. It tracks medications, vitamins, and supplements with zero network activity.
Why Another Medication App?
The medication tracking space on the Play Store breaks into three tiers:
- Free apps funded by pharma advertising — Medisafe, MyTherapy. They offer refill reminders that conveniently suggest specific pharmacies and drug brands. Your medication data is the product.
- Subscription apps — $5-10/month for features that should be a one-time purchase. Pill Reminder, Round Health.
- Bare-bones free apps — No export, no adherence tracking, no multi-person support.
DoseLog fits a gap: a paid app with no recurring costs, no network requests, and features that actually help you talk to your doctor.
Core Features
Multi-Profile Support
Households share medication responsibility. A parent tracking their own prescriptions, a child’s ADHD medication, and an aging parent’s blood pressure meds needs one app that handles all three without confusion.
DoseLog supports labeled profiles — self, spouse, parent, child — each with independent medication lists, schedules, and adherence history. Switch between profiles with a tap.
Flexible Scheduling
Not every medication follows the same pattern. DoseLog supports 7 scheduling frequencies:
- Daily (morning, afternoon, evening, bedtime)
- Twice daily / Three times daily
- Weekly (pick the day)
- Every other day
- As needed
- Custom intervals
Each medication gets a dosage, form (tablet, capsule, liquid, injection, topical, drops, inhaler, patch, powder), and category (prescription, OTC, vitamin, supplement, herbal).
One-Tap Dose Logging
The daily view shows every medication due for the current day. Tap to log, tap again to undo. No forms, no confirmation dialogs. When you’re groggy at 6 AM trying to remember if you took your thyroid medication, the last thing you need is friction.
Skipped doses are tracked separately so adherence stats stay accurate.
Adherence Tracking
A weekly bar chart shows your adherence rate at a glance — green for good weeks, amber for mediocre, red for missed. A 30-day history view lets you scroll through dose-by-dose records.
This is the feature doctors actually want. “Are you taking your medication?” is the most common question at checkups, and “I think so” is the most common (useless) answer.
PDF Export
Generate a formatted PDF showing medications, schedules, dosages, and adherence stats. Hand it to your doctor, email it to a specialist, or keep it for your records. This turns a $4.99 app into a medical communication tool.
Refill Alerts
Set pill counts and DoseLog will warn you when you’re running low. No more discovering you’re out of a critical medication on a Friday evening.
Technical Notes
DoseLog follows the same architecture as all our apps: Expo 54, React Native, TypeScript strict mode, AsyncStorage for persistence, local notifications for reminders. The codebase is 2,763 lines of TypeScript across a clean component architecture.
The app never connects to the internet. No telemetry, no crash reporting, no analytics. If your phone is in airplane mode, DoseLog works identically.
Privacy and Health Data
Health data is the most sensitive category of personal information. HIPAA exists because health data misuse has real consequences — insurance discrimination, employment decisions, social stigma.
Most “free” medication apps operate in a gray area. They’re not covered entities under HIPAA, so they can share data with third-party analytics, advertising networks, and data brokers. A 2022 study found that 86% of top medication reminder apps shared data with third parties.
DoseLog sidesteps this entirely. If data never leaves the device, there’s nothing to share, sell, or breach.
The Portfolio at 10
DoseLog is our 10th app, and it’s one of the strongest in the lineup because the pain point is so universal. Everyone knows someone who struggles with medication adherence — whether it’s a college student forgetting daily vitamins or a grandparent managing a dozen prescriptions.
At $4.99 with no backend costs, the economics are straightforward. Even modest adoption in a category with 200+ million potential users in the US alone makes this viable.