Trackers have existed for a while, but the privacy preserving ad-hoc device network approach is definitely an innovation.
I don't have one so I can't conclusively say either way, but it seems like the only "innovation" Apple can probably claim over Tile is that every iPhone should support the network out of the box (I assume) rather than having to rely only on people who already have the app.
Integration into the Apple ecosystem is another huge one that Tile refused.