Question 1

What is FourNumbers?

Accepted Answer

An iPhone app for tracking blood pressure, meals, medications and BMI in one place, with a friendly heart mascot called Beat. It is a wellness tracker, not a medical device.

Question 2

Does FourNumbers measure my blood pressure?

Accepted Answer

No. Your phone can't measure blood pressure. You use your own blood pressure monitor, then type the numbers, take a photo of the monitor's screen, or import readings from Apple Health.

Question 3

Does it work with Apple Health?

Accepted Answer

Yes. You can turn on Apple Health in the app's Settings to bring in blood pressure and pulse that your monitor saves there. FourNumbers only reads this data; it never writes to Apple Health.

Question 4

Is FourNumbers free?

Accepted Answer

It's free to download. Premium costs $9.99 a month or $79.99 a year, with a 7-day free trial for eligible new subscribers. You can cancel anytime in your iPhone Settings before the trial ends and you won't be charged.

Question 5

Is it for people who don't have high blood pressure?

Accepted Answer

Yes. Many people use it to stay on top of their numbers and build heart-healthy habits before there's a problem.

Question 6

Can my family see my numbers?

Accepted Answer

Only if you invite them to your Care Circle. You choose who is in it and can remove anyone at any time.

Question 7

Can I use FourNumbers to keep track of my parent's blood pressure?

Accepted Answer

Yes, with their permission. Your parent uses FourNumbers on their iPhone and invites you to their Care Circle. On the free plan you see their recent meals; with Premium you can also see their blood pressure and medications and get a gentle alert if a reading is much higher than usual. They can remove you at any time.

Question 8

Does FourNumbers use AI?

Accepted Answer

Meal scoring and reading a photo of your monitor use AI, but only after you allow it. You can turn AI features off in Settings. Your Apple Health data is never sent to AI services.

Question 9

Is my health data sold or used for ads?

Accepted Answer

No. FourNumbers does not sell your data and does not show ads. See our Consumer Health Data Privacy Policy.

Question 10

How do I delete my account?

Accepted Answer

In the app, go to Settings → Delete account. This permanently deletes your account and data.

Question 11

Which phones does it work on?

Accepted Answer

iPhone. It isn't currently available in the European Union.