I made a math game that was ad-free. It started out with a $1 purchase price at first launch, but I decided to make it free since it was not being downloaded. I'm curious if you have any advice on how to market to your audience of "parents that will pay for ad-free kids' games".

Free to download, then $1 to remove ads or unlock the full game. I get the frustration, but I'm someone who pretty much never pays up front for an app, but the bar for getting me to pay $1 to remove ads or unlock features is extraordinarily low. I basically need about an hour or so of use before I'm willing to invest (which is unfortunately necessary thanks to the hundreds of essentially useless apps I've downloaded in the past).

Honestly I'm not sure. My process for buying a game would generally be: Open Play store, search for e.g. "toddler math", filter for "Paid" and then look for something with good reviews. Even with that criteria you are likely competing with 100's of other apps.

I understand. Most developers don't care once they've got their ad impression.

Although I don't assume people would outright buy the game without trying first. Especially from a first time developer. So the free version is a necessity for me.