I long ago concluded that the app stores are useless wastelands. Even if you know the exact name of what you want, there will be 30 scammy knockoffs that show up in the search results. (All "free" with in-app purchases and ads, of course.) Okay, so can you search the broader internet for what you want, then click on a direct link to the desired app? Sorry, no -- the search results are dominated by garbage articles about "50 apps for X." It's pretty much hopeless.