Data loss over 7 days

I used to love this app but I just realized today the the app now keep the data only for the past 7 days!!! I’m horrified since I wanted to keep track of my sleep habit!
Why is that and how can I change it? It seems to be a complete mystery.

Hi @Dominou, we do not have anything similar reported, this sounds like a corrupted installation or memory issues. The app does not have any limitations for the number of records, and never deletes graphs from the history (even in the limited free version). If you open the list of graphs, is the whole history missing?
Which backup service do you use?