Tablets are probably going to be computer only...? But I think most of the bigger brands should work on both mac and windows. That said, basic functionality should be available in most art programs that are a step beyond Paint. If you're curious or want to check, any programs that say they support pressure sensitivity means they can at least register thin/thickness based on how hard you press your pen tip on the surface. But even if you use GIMP, which is another free art software that's like a free Photoshop, you should still be able to draw. Both tablets and art programs handle and have different degree of sensitivity, but I'll be honest, I've never run into a time when I feel like I DIRELY need more sensitivity. It's nothing an adjustment to how you approach problems can't handle.
Once more though, I will say some defense for Wacom. It's a very well established brand, and if you don't live in countries where Huion has an established center, you're unlikely to get fucked like I did. It's also likely, however, now that it's more of a name internationally, it's gotten better. However, both my Wacom Bamboo and Intuos Draw (most basic, cheap models they had at the times of purchase) have gone through multiple international moves and been, in eyes of most people, heavily abused LOL and they suffer nothing. I had my Huion medium (forgot the model, but it should be equivalent to Wacom's Bamboo or Intuos Draw) for about 1 month before they started having really frequent problems with cable connection. It was physical; the port was just easy to shake pretty much on purchase. It might've been less of a problem if the center in my country would actually reply to my complaint and offered SOME sort of compensation for selling me a product unusable within 3 months, but they just ghosted me.
But I keep reiterating, if you live in the US or somewhere where Huion is likely to actually care about customer reviews, you'll probably be fine getting a Huion. It's not unlike getting a cheap phone, for me. I got some cheap phone after my old solid-brand one became a total brick. It worked fine with all the functionalities I want and had from my old phone, but it did shatter into literal wafer layers within about 2 years. The other one, while priced quite a bit more, lasted me 4, though. My Bamboo lasted me 5 years. My Intuos Draw is entering its 5th. It's not bad for an $80 investment in a hobby I'm passionate in.
EDIT: Actually I really want to emphasize this: if your friend isn't going to abuse that tablet as much as I do (I take it almost EVERYWHERE. It has been squashed between uni textbooks for 3 years and manhandled in airports and trains dozens of times) a cheaper model ought to suffice. If the reviews are decently good, it's within your budget and will be used only at home or carefully handled, why not get the affordable one after all?