Crashes often after 1000 pts

I would give the previous version of this app 5 stars, but ever since i updated to the new version it crashes often in all 3 latest versions of the ipad. I even bought the paid HD version to see if the problem did not exist there, but it was the same. Please fix this bug or at least tell us ho to install the previous version.

Most awesome app for computation there is.....when it works.

Startortoise about ArithmeTick - Math Flash Cards, v1.6