You are welcome to use Heart Buddy free of charge. Heart Buddy is fully functional. There are no subscriptions, no in-app purchases and no adverts.
If Heart Buddy has helped you out and you would like to support future development a donation is gratefully accepted.
Thank you, Sean.
Why not take the time to send some feedback? I would love to know how Heart Buddy has helped you and I'd be delighted to hear what you've got to say.
If you have the time, you could help other people find out about Heart Buddy by leaving a review on the Apple Store.