How do I delete a user?
Make sure that account editing is enabled (Is the '+' icon visible? If not enable editing from the settings screen.) Then simply swipe an account to delete.
I want to delete a transaction
Allowabank acts like a bank account and as such, transactions were designed to stay around forever. However you can delete the last entered transaction if you made a mistake.
My child's account was just credited with $9,876,543.21
Have words with your child and enable the Allowabank pin function.
Can I synchronize between devices (iPad/iPhone)
Not yet, although we are working on it.