UPDATE: So far since they updated this app, I havent had any problems with it crashing. Even though I also have the paid version, I still find this useful. One can only keep track of so many words at a time anyway. ORIGINAL REVIEW: I have the same problem with it crashing on my ipod touch. The solution is to delete & reinstall. This solves the problem (at least it did for me), but of course means you lose all the words in your word bank. I found I had to do this about 5-6 times. Frustrating, but hard to complain since the apps free. Now, the $10 paid version I upgraded to and have the same problem with is a different story! But this is a great app, otherwise. Hei hei!