Is Pie Adblock the same thing as Pi-Hole on Raspberry Pi?

No, Pie Adblock is completely different from Pi-Hole or Raspberry Pi and has no affiliation whatsoever.

• Pie Adblocker is a browser-based ad blocker that blocks ads and offers rewards for users who choose to engage with ads.
• Pi-Hole is a network-level ad blocker that runs on a local device (like a Raspberry Pi mini-computer).