In many countries, the consumer protection laws are strong enough that consumers probably can return such appliances, as long as the facts about app requirements weren't made abundantly clear to them at the store.
Though, it's usually the store who's responsible for that refund, not the manufacturer . Still, stores are motivated to reduce return rates and will put pressure on manufactures to not do stupid things.
For things you can carry back to the store, that works well. When I buy a new washing machine, though, it's a bit more complicated:
- I go to the store and make the purchase.
- A delivery crew brings the washing machine to my house.
- They unhook my old washing machine and take it away.
- They attach my new washing machine in its place.
Even with the strongest reasonable protection laws I can imagine, the most the store would be obligated to do if the new machine is unsatisfactory would be to detach the new machine and take it away. And I've probably had to pay for one or two visits from the installers at that point. Regardless of whether the extra visit from the installers carries any extra cost for me, there's enough hassle associated with this that I can easily imagine keeping a machine where I'm not happy with some app requirement because it'd be too much trouble to make the change.
Though, it's usually the store who's responsible for that refund, not the manufacturer . Still, stores are motivated to reduce return rates and will put pressure on manufactures to not do stupid things.