Happsee is currently being tested for Android. You can sign up above or join this google group to get alpha access now. Depending on interest, Happsee will be made for other platforms, with a web-based tool being the likely next step.
Happsee is being developed by Vik Paruchuri. His background is in machine learning and web development. Prior to working on Happsee, he has been a member of the US Foreign Service, a winner of competitions in automated essay scoring and stock trading, and an engineer at edX. He has a bachelors in american history from the University of Maryland. Feel free to contact him at firstname.lastname@example.org.
Happsee lets you choose whether to sync your data with the cloud or store it locally. If you choose to sync it, it is stored securely on the Amazon cloud. The data is used only for sync/backup and analysis purposes.