No doubt five stars are paid.

This is a perfect example of pay per review. Certainly not a monetary outlay, but pro version for five star review.

Hit one number — pop up for winner of Amazon gift card. Tried to finish equation, pop up to install their other app. Hit enter to receive answer, pop up for amazon gift card winner.

My iPad is not infected, it was bought yesterday. Just an epic joke to have a 4.5 Star review to suppress the real reviews. Almost criminal. Welcome to late stage capitalism folks.

Non–Bot Reviews about Calculator Pro+ for iPad, v5.1