There is no shortage of well done apps that cost very little (most of them cheaper than the cheapest korg tuner) and packing in way more functionality. If OP's comment was something to the tune (heh) of "I tried a bunch of paid top-rated apps and I prefer my hardware tuner", I'd consider it a fair comparison.
Name three.
The problem with app stores (both Google's and Apple's) is that it's impossible to find those good quality apps for commodity needs, in the sea of advertisement/IAP-backed garbage.
The free one from Fender is not terrible - but still behaves like crapware.
So, cough up for Netflix, or move to an area where people have expended effort to make sure billboards are not permitted, or, I dunno, go watch the ponies. It’s all out there, just got to pay one of the prices.
If you don’t want ads, you pay, or pick up one of dozens of perfectly serviceable used hardware tuners on eBay for 5 quid all day long.
Edit: google "best tuner apps" and the two I use are consistently at the top. If those aren't in the top 30 of your appstore search, then we have a discoverablity problem, not a free or ad supported software problem. And again, if you picked random tuner from Amazon instead of going to store or reading reviews your experience might be the same. So - let's focus on what true issue / rage is, and compare apples to apples :)
And no, "just" move to another place is not a proper argument:
I didn't mean to say “move to an area where people have expended effort to make sure billboards are not permitted”.
I meant to say “expend effort to make sure billboards are not permitted, or move to an area where people have expended effort to make sure billboards are not permitted”.
Absolutely nothing wrong with criticizing any of that. Paying for TV channels yet being forced to see ads is an indignity. Billboards and all other forms of advertising are nothing but visual pollution, cities that have banned them are nicer. Stickers on racing cars are also visual pollution.
You block them.
They chose not to charge money for it. They chose to ruin it with annoying ads nobody wants to see. It is absolutely fair.