Free
In-App Purchases

Details

Released
January 29, 2015
Updated
September 8, 2026

Features

iHeart Internal Age screenshot #1 for iPhone
iHeart Internal Age screenshot #2 for iPhone
iHeart Internal Age screenshot #3 for iPhone
iHeart Internal Age screenshot #4 for iPhone
iHeart Internal Age screenshot #5 for iPhone
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About

Measure your Internal Age by assessing aortic stiffness with a fingertip device. Monitor key health metrics, track your progress over time, and encourage healthier lifestyle choices. This system is for personal wellness education, not medical diagnosis.

✓30-second Internal Age test
✓Monitor blood oxygen and heart rate
✓Track aortic stiffness (PWV)
✓Review pulse shape and trending results
✓Online dashboard access
✓Create user profiles
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What's New in iHeart Internal Age

1.155

September 8, 2026

ui bug fix for jpn users

3

Subscriptions & In-App Purchases

Premium Monthly Subscription

Gives you access to up to 5 profiles

$1.991 Month
How to cancel iHeart Internal Age subscription ⁉️

User reviews

Cool idea, poor execution

This app is extremely glitchy and provides almost zero information to help on your health journey. The internal age portion is neat and works ok, though it would be nice to have in-app insights on your health and more advice. The iheart Brain portion is pretty useless. I spent five minutes doing a sit-stand test only to be given a graph with no interpretation of the results. It doesn’t even tell you what the lines on the graph represent, so I don’t know how even a medical expert would know how to interpret it. And then when I went back to view my results again, they disappeared and my calendar entry was gone. I’m not sure why this app or this device is still available when it seems like it should still be in the development phase.
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Perhaps the worst app of all time?

Let's start out by saying I really love the hardware and have been using it for years, but the app, OMG. It is functional in the sense that you get the readings you want to get but it looks like it was designed as part of a high school class project. The hardware is not cheap so I cannot imagine

Nice App!

I appreciate this app for enhancing my awareness of aspects of my well-being that my Apple Watch doesn't track. Highly recommended for fitness and wellness enthusiasts!

良い商品だと思います。

測れましたが、プロフィールで身長を登録したのですが、プロフィール一覧から再度確認すると身長のセンチメーター数がクリアされています。
これはバグなのでしょうか?

Great device but..,

The great and simple device to use. Brilliant actually period. Unfortunately it does not connect to Apple Health app. Which is very unfortunate. It’d be helpful to have all information in the one app.

Developer apps

FAQ

What does the iHeart Internal Age app do?

The app works with the iHeart Internal Age system to measure your Internal Age by assessing aortic stiffness using a fingertip device. It allows you to monitor key health metrics like blood oxygen and heart rate, track your progress over time, and access your data via an online dashboard.

What are the key features of the iHeart system?

Key features include a 30-second test to determine your Internal Age, monitoring of blood oxygen and heart rate, tracking of aortic pulse wave velocity (a measure of aortic stiffness), review of recordings and trending results, optional online dashboard access, and the ability to create user profiles for family and friends.

How much does the iHeart system cost?

The app itself is free to download. However, it requires the iHeart Internal Age system, which includes a fingertip device. Information on how to order this device can be found at goiheart.com. The system is for personal health and wellness education and is not a medical device.

Is the iHeart system a medical device?

No, the iHeart system is NOT a medical device. It is intended for personal health and wellness education only and should not be used for any medical diagnosis or management of medical conditions.

Who is the target audience for this app?

This app is designed for individuals who are interested in proactively monitoring their personal health and wellness, particularly their cardiovascular health. It's for those who want to understand their Internal Age and make lifestyle choices to improve their health metrics.