Why track blood pressure in ClinicalTools
Home blood pressure monitoring only helps if the numbers are written down consistently and read the same way your doctor reads them. Paper logs get lost, and the Health app on its own doesn't tell you what a reading means. ClinicalTools fills that gap with a purpose-built blood pressure diary for iPhone and iPad.
Every reading you log is classified instantly using the 2017 ACC/AHA thresholds — Normal, Elevated, High (Stage 1), High (Stage 2) or Hypertensive Crisis — with a short plain-language note on what that category generally means. A crisis-level reading is flagged in red so you know to seek care rather than just save the number.
Readings can carry the context clinicians ask about: which arm, whether you were sitting, standing or lying down, the time of day (detected automatically), and a free-text note for anything unusual like a missed dose or a stressful morning.
Three steps, every time.
Take your reading
Use any home cuff. Rest for five minutes, then note the systolic and diastolic values and your pulse.
Log it in seconds
Type the three numbers, confirm arm and position, add a note if you like. The classification appears immediately.
Review the trend
Switch between 7-day, 30-day, 90-day, 6-month, 1-year and all-time charts, with averages for systolic, diastolic and pulse.
What the Blood Pressure tool does
Automatic AHA classification
Each reading is labelled Normal, Elevated, Stage 1, Stage 2 or Hypertensive Crisis using the 2017 ACC/AHA cut-offs, colour-coded so patterns stand out at a glance.
Trend charts with averages
See systolic and diastolic plotted over 7 days to a full year. Average values for the selected range are shown alongside the chart.
Arm, position and time of day
Record left or right arm, sitting, standing or lying, and let the app tag morning, afternoon, evening or night automatically.
Apple Health sync
Systolic, diastolic and heart-rate values are written to Apple Health as a proper blood-pressure correlation, so other apps and your doctor's portal can use them.
PDF report for your doctor
Export your full history as a formatted PDF in one tap, or include blood pressure in the combined Doctor Share report alongside weight, labs and more.
Crisis warning
Readings above 180 systolic or 120 diastolic are flagged as a hypertensive crisis with a clear prompt to seek emergency care.
Blood pressure categories used by the app
ClinicalTools follows the 2017 ACC/AHA guideline for adults. A reading falls into the higher category if either number qualifies.
| Category | Systolic (mmHg) | Diastolic (mmHg) | |
|---|---|---|---|
| Normal | Less than 120 | and | Less than 80 |
| Elevated | 120 – 129 | and | Less than 80 |
| High — Stage 1 | 130 – 139 | or | 80 – 89 |
| High — Stage 2 | 140 or higher | or | 90 or higher |
| Hypertensive Crisis | Higher than 180 | and/or | Higher than 120 |
Categories are a screening aid, not a diagnosis. Your doctor may use different targets depending on your age, conditions and medications.
Built for people managing hypertension
Whether you were just told to "monitor at home for two weeks", you are adjusting a new medication, or you have tracked your pressure for years, the tool is designed around what a clinician needs: consistent readings, honest context, and a trend rather than a single scary number. Caregivers logging readings for a parent will find the arm and position fields especially useful when different people take the measurement.
Your blood pressure data stays yours.
No account, no login, no server run by us. Data lives on your iPhone or iPad and, if you turn on iCloud sync, in your own end-to-end-encrypted iCloud account. Every export and share is something you start.
Blood Pressure — common questions
Is the blood pressure tracker free?
Yes. Blood Pressure is one of the 12 tools included free in ClinicalTools, with no ads and no subscription. Charts, classification, Apple Health sync and PDF export are all included.
Does it work with my blood pressure cuff?
ClinicalTools works with any cuff: you read the numbers from the monitor and type them in. It does not pair over Bluetooth, which keeps the app simple and lets you use whichever monitor your doctor recommended.
Which guideline does the classification use?
The 2017 American College of Cardiology / American Heart Association guideline for adults: Normal, Elevated, Stage 1, Stage 2 and Hypertensive Crisis.
Can I share my readings with my doctor?
Yes. Export a PDF of your blood pressure history in one tap, or generate a Doctor Share report that combines blood pressure with weight, blood work, BMI, sleep and mood for a chosen date range. Share it by email, AirDrop or Messages.
Does it sync with Apple Health?
Yes. Each reading is written to Apple Health as a blood pressure correlation with heart rate, so the Health app and other apps you allow can see it.