Aira's FreePower technology seems to be what Apple was trying to achieve with Airpower. Haven't tried it yet (because it's expensive) but from the review I read, it's legit.
I will say having used it, I understand why Apple axed the idea. It is huge and gets hot and I assume it is thicker than Airpower would have been.
https://www.theverge.com/21242641/zens-liberty-review-wirele...