Absolutely great!
I feel mentally and physically sharper from this
Black screen
I have been enjoying this app for a couple of months now. Recently a rather irritating black screen has been interfering. I have to close the app and reset it, so I can resume the session.
Is anyone else experiencing this?
Is anyone else experiencing this?
Terrible. They don’t answer emails.
I want to upgrade to unlock the levels but they don’t answer. What’s the point of your crappy app if you can’t even unlock it?
Much potential, not well implemented
Very worth downloading for the first few levels. Several annoying bugs though and getting the later levels isn’t clear and it seems it’s not even possible.
A little buggy
Opened a chart and had to restart my phone to get back to the Home Screen.









