New version is available on Amazon appstore. We fixed bug which could pop up after selection skill level
"2nd grade end".
All is working correctly now!
Description of the bug
We find out that after selecting "2nd grade end" in option "skill level" you can experience certain problems in "comparison" and "find element" tasks ( application can unexpectedly stop or you get task "12 + [ ] =27" without possibility to solve).
If you encounter such problem in version you downloaded before 4th of April, please enter into menu "options" then select "tasks to do" and then press OK or just exit. After that app will work without any problems.