Duffy does not transmit any information to any of our servers or to any third party. Duffy requests permission to read your steps data from the Apple Health app and only displays that information to you in an easily consumable way on your iPhone and Apple Watch. All of your data stays stored within the Apple Health app which is encrypted on your device. Read more information about how Apple Health stores your data.
Duffy is an open source project. If you still have concerns about what Duffy does or how it works, the source code is available for review on our GitHub repository.Back to Duffy