Entering the club... Found out 99% disappearing of a note with a few year important statistic buisness info.
After that revealed, that the latest app free version doesn't work on Win7 (haven't planned to update, have some reasons).
Procrastinated too long with plain backups of such info and now have completely clear vision, that this app is not safe at all. Data can disappear at any time wih no way to recover. So there is no sense in this product. Shame for developers, study for naive noobs.