A way to clean out completed ToDo's
I once read somewhere, that this could be done with synchronizing to the Mac version (see also http://support.appigo.com/support/discussions/topics/35000), obviously like when synchronizing Calendar via iTunes.
Can't confirm this, didn't buy Todo for Mac up to now (14,99 € just for purging old tasks?).
But why not let a 3rd party App clean it's otherwise ever growing memory itself?