Are app-controlled toys waterproof?

Some are, some aren't. "Waterproof" usually means the toy can be submerged, while "splash-proof" or "water-resistant" means it can handle a rinse but shouldn't go underwater. Always check the product listing. Even with waterproof toys, keep charging ports dry before charging, and remember that Bluetooth signals don't travel well through water, so app control in the bath may be unreliable.