Cardiogram occasionally runs in-app messaging that asks our users questions about their health. Typically, they look something like this:
Each one generally has an explanation for why we’re asking (e.g., contributing to medical research) and a question (e.g., have you been diagnosed with type 2 diabetes?). Whether or not you answer these questions is completely up to you – if you’re at all uncomfortable with doing so, please feel free to dismiss them by tapping the ‘X’ in the top right-hand corner.
These questions are also shown to all users – seeing them does not imply that there is something alarming about your heart rate patterns. (If you are at all concerned, we advise you to reach out to your doctor just in case!)
This FAQ covers the messaging we’re currently running, our rationale behind it, as well as what we intend to do with the data we collect. If there is anything that isn’t covered here, please email [email protected] – our customer support team would be more than happy to answer your questions.
Tracking effects of flu on heart rate
Cardiogram is curious about how your heart rate might change when you have the flu and how understanding these changes might help you better contextualize your heart rate patterns. For more details, check out our article on How your heart rate can show signs of the flu.
Health conditions
This question helps us understand what users might be using Cardiogram for and what our user base looks like; this allows us to build better features that accurately reflect the needs of our users.
Type 2 diabetes / sleep apnea / high blood pressure / high cholesterol
Some research suggests that your heart rate patterns can change when you develop conditions like diabetes, hypertension, sleep apnea, and others. We want to learn whether we can observe these differences. If you see this question, it does NOT mean that we think you have the condition—we ask it to everyone.
We’ve also recently introduced Insight cards that appear on the top of your Timeline:

Some of these are Q&A insights and they operate on the same principles as the other questions—responding is completely voluntary and their appearance is not a sign that anything is wrong (we are just curious about our users and want to build a better app!)
Previous Diagnoses

We’re working on making Cardiogram a heart-rate based journal companion that provides tailored insights to our users. This question is meant to help us understand what insights might be most useful for you so that we can show you relevant content.
You might also see ‘Journal Insight’ cards. These are meant to provide helpful insights based on the symptoms you’ve been tracking.
Fatigue
We’ll show you a card like this if you’ve tagged Fatigue as one of your symptoms. It explains how your heart rate might contribute to your level of energy.
On the last page of most Insights, you’ll see a section to provide feedback on the Insight. This feedback will help us determine which insights users like and dislike so that we can generate more or less of them.
If it was helpful, tap ‘More like this.’ If not, tap ‘Fewer like this.’ Please also feel free to send us more detailed feedback. You can do this either by emailing [email protected] or by going to ‘Submit Feedback’ in the sidebar (to open the sidebar, tap the three lines in the top left corner of the Timeline pane).