I saw the same thing happen with Tetris. It was first released when the App Store came out. It was 99 cents and no ads. It kept working and being available t

I saw the same thing happen with Tetris. It was first released when the App Store came out. It was 99 cents and no ads. It kept working and being available through the 32 bit era. But was never updated for larger screens and was replaced with an ad ridden version. Plants vs Zombies 2 was also much worse than the original because of ads and in app purchases. That being said, they did “bring back” Angry Birds Classic to iOS as a one time 99 cents purchase.