The maker of the free-to-download game Smurfs' Village said the last thing they want "is to be misperceived as taking advantage of children."
Capcom, the parent company of games maker Beeline, said: "Since this issue has come to our attention we’ve added a number of features and messages to the game to help protect customers.
"If a customer purchases in-App content by accident, they may also request a refund.”
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The former reality TV star will follow in the footsteps of Abraham Lincoln and John F Kennedy when he takes his oath later on Friday.
The President-elect's comments on Twitter will come under even closer scrutiny when he takes office on Friday.
Cold, quiet and calm