Too easy for adults, inaccurate control

I've got the app, nachdemich read in other reviews that it's too easy.
However, for a child. Angetestet short, and still a little disappointed.
The guiding of the pads is a little strange.
Instead of directly under the Figer moves the block apparently arbitrarily irgwndwo finger next to it.
Conclusion: for adults too easy for children to hakelig.
(Tested on Google / Asus Nexus 7 2nd Gen)