Does the app measure my blood pressure?

No. Cuffday does not measure blood pressure. It records readings you take with a validated blood pressure monitor. Apps that claim to measure BP with your finger or camera are not reliable.

How do I share my readings with my doctor?

Open Report, choose 7, 30 or 90 days or any date range, and create a PDF. It contains your averages, a chart and a full table of readings. Show it on your phone, print it or email it.

Are averages shown as numbers?

Yes. 7-, 30- and 90-day averages and morning and evening averages appear as large numbers such as 130/83, and three-digit values never get cut off.

Can I type the numbers instead of using scroll wheels?

Yes. A big number keypad lets you type 128, 82, 71 and save.

Can I fix the date or time of a reading?

Yes. Open any reading to edit its date, time, values or note. You can also add readings for an earlier date, and the history shows the year.

How do I back up my data or move to a new phone?

Readings are stored on your phone. Export a CSV, install Cuffday on the new phone and import that CSV. You can also import a CSV from another app.

Can I open my data in Excel or Google Sheets?

Yes. The CSV export opens directly in Excel and Google Sheets.

Which blood pressure categories does Cuffday use?

The 2017 ACC/AHA guideline. The labels are for reference only and are not a diagnosis; talk to your doctor about your readings.

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Blood pressure categories explained (2017 ACC/AHA)

The 2017 American College of Cardiology / American Heart Association (ACC/AHA) guideline groups adult blood pressure into Normal (under 120/80), Elevated (systolic 120–129 and diastolic under 80), Stage 1 hypertension (systolic 130–139 or diastolic 80–89) and Stage 2 hypertension (140 or higher, or 90 or higher). Readings over 180 and/or over 120 are a hypertensive crisis. When the two numbers fall into different categories, the higher category applies.

2017 ACC/AHA blood pressure categories (adults)

Category	Systolic (top number)		Diastolic (bottom number)
Normal	Less than 120	and	Less than 80
Elevated	120–129	and	Less than 80
Stage 1 hypertension	130–139	or	80–89
Stage 2 hypertension	140 or higher	or	90 or higher
Hypertensive crisis	Higher than 180	and/or	Higher than 120

How to read the chart

Categories are based on averages, not a single reading. The 2017 guideline bases them on the average of two or more readings taken on two or more occasions, and recommends home readings to confirm office numbers. Guidelines in other countries may use different cut-offs; for example, European guidelines define hypertension as 140/90 or higher.

If a reading is over 180/120, rest a few minutes and measure again. If it is still that high and you have chest pain, shortness of breath, numbness or weakness, difficulty speaking, vision changes or a severe headache, call emergency services (911 in the US) right away. Even without symptoms, contact your doctor promptly.

How Cuffday labels your readings

Cuffday labels each reading Normal, Elevated, Stage 1, Stage 2 or Crisis using these 2017 ACC/AHA categories, with color and text, and shows your 7-, 30- and 90-day averages as numbers. The labels are for reference only and are not a diagnosis.

This guide is general information, not a diagnosis or treatment plan. Talk to your doctor about your blood pressure goals and medication.

See which category your average falls in

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