Then use $1.99 from the sponsors to remove the ads????

Later in the video you see a clearer picture of apparently the same tablet and timer app, and no ad.

I saw what I thought was no ad, but you could still see the little widget in the upper right hand corner that still revealed where the ad would appear like when you manually click close ad on a website.

Not everyone wants to spend 2$ on a stopwatch app they can use for free and will only use it once.

That's part of being a content creator. Producing content has expenses. When you cheap out on it, it looks obvious and people will comment. Hi

People are significantly biased not to pay for computer things. Except for Apple users. Any mobile developer knows Apple users will pay for things a lot more than Android users.