Also with additional door sensors, the Tailwind can control up to 3 garage doors, so the cost for 3 Teslas/doors/iPhones would be only $210 instead of $1050 for 3 HomeLinks.
Honestly, I've been doing a little looking over their website and the details are here and there.
Even if you have an android phone as the previous poster mentioned, you actually have to also have it paired to the car via bluetooth too. Makes sense if you're using multiple cars and can pair to them... but doesn't help if you happen to not be paired to the car you're driving.
As for actually using it on multiple doors... definitely, $1050 is a lot of money (for three cars). Heck, $350 for one HomeLink is more than the $80 TailWind. But here's the thing, I can reprogram my Homelink to open my sister's garage door if I so chose. If I take a road trip to my other three siblings, I can reprogram it to open any of theirs too while visiting. Hell, any number of friends I can do it with as a temporary reprogram, even though its limited to three at a time.
With the Tailwind, you can move it... by physically removing all the parts from your garage, packing it in a bag or box and taking it with you and then installing it there (or hiring someone to install it). Unless all the places you plan on visiting coincidentally already have a TailWind installed.
Conversely, the TailWind, because its app based, is more likely to allow multiple vehicles visiting a single location... assuming you have an android phone paired to a car via BT. For a data point... all my friends and family use iPhones, even though I have an android phone.
Anyway, most of my post is just confirmation bias for my HomeLink purchase.
PS... Amazon currently lists it as out of stock. Its one thing if its a new item, but having been on Amazon since 2018 isn't too reassuring.