Doesn't deal with different locations, which makes it harder to see low stock in one location. Alerts always seemed out of sync, like the calculation had been done days before the alert was sent. Good basic app, but not worth the price.
We do offer multiple locations now!
This app often did not work when we needed it, then we would have to contact the developer to fix and wait for it to be fixed. We have deleted it again, as it's just too unreliable. Shame because the app is great when it does work.