Bring your doctor the numbers .
Hypertension Diary is the iOS blood-pressure logbook for adults monitoring at home between cardiology follow-up visits. AM and PM averages tracked separately, medication changes overlaid on the trend chart, and a one to two page doctor PDF you can email, AirDrop, or print before your next appointment.
Sound familiar?
Forgetting the numbers
Your cardiologist wants 90 days of twice-daily readings at the next follow-up. By week four you forgot, restarted, then forgot again. The notes on your fridge are illegible by the time the appointment arrives.
Apple Health is not a logbook
Manual entry works, but Apple Health does not separate AM and PM averages, does not correlate to medication changes, and exports a JPG chart your cardiologist cannot read.
Hardware apps want hardware
Withings and Omron apps want you to buy their cuff first. If you already own a $40 Walgreens cuff or use the office machine, those apps lock you out of the logbook function.
A printed doctor report no one ships
Cardiologists want AM averages, PM averages, and a list of medication changes on a single page. Cardio Journal exports CSV. Withings exports a JPG. Wellmy exports nothing useful.
Everything you need
AM and PM averages tracked separately
The 2017 ACC AHA guideline treats morning and evening readings as clinically distinct. Hypertension Diary computes AM and PM averages as separate first-class values, not one mashed-together number.
Medication overlay on your trend chart
Log every dose change. The trend chart shows a vertical marker on each titration date so you can see how a Lisinopril 10 to 20 mg change moved your numbers across the next two weeks.
Doctor-ready PDF in three seconds
Tap Generate doctor PDF and the app renders a one to two page report with date range, AM average, PM average, medication-change timeline, and every reading in the range. Share via iOS share sheet.
Apple Health import (optional)
Read existing readings from Apple Health, including any paired arm cuff or Apple Watch. The read happens on device. The app never writes back to Apple Health.
Twice daily reminders, gentle by design
Pick a morning time and an evening time during onboarding. Local notifications fire from your iPhone. No promotional pings, no nags, no remote push infrastructure.
On-device only, no account, no cloud
Every reading, medication entry, and generated PDF stays on your iPhone in the app sandbox. There is no account system. We have no server. The PDF you generate is the only data that leaves the device, and only because you choose to share it.
Simple, transparent pricing
Start free, upgrade when you need more power.
- 7-day free trial
- AM and PM averages tracked separately
- Medication overlay on the chart
- Doctor PDF export
- Apple Health import
- Unlimited history
- One-time payment
- All future updates
- Everything in Annual
Frequently asked questions
Does Hypertension Diary measure my blood pressure?
No. Hypertension Diary is a logbook for the readings from your cuff or your doctor office machine. It does not measure or estimate blood pressure using the iPhone camera or any other sensor. Apple App Store policy and AHA guidance both rule out consumer smartphone BP estimation, and the science is not there yet.
Who is this for?
Adults who have been told to monitor their blood pressure at home between cardiology visits. The wedge cohort is people newly diagnosed in the last 12 months, but anyone who needs an AM and PM averaging logbook with a clean doctor-facing PDF will get value.
Do I need a specific cuff?
No. Use any arm cuff, wrist cuff, or office machine. You type the numbers in. The app does not require any hardware brand. If you already use a Bluetooth cuff that writes to Apple Health, the Apple Health import option will pull those readings in.
Does my data leave my iPhone?
Only when you explicitly share. Every reading, medication entry, and generated PDF stays on your device. The only network use is to load App Store subscription pricing on the paywall. There is no account, no cloud sync, no analytics SDK.
How do I cancel?
Open iPhone Settings, tap your name, tap Subscriptions, tap Hypertension Diary, then Cancel. Apple manages all billing.
Walk into your next follow-up with the numbers.
Coming soon to the App Store. 7 day free trial, then $49.99 a year. Lifetime $129.