There are thousands of app in the various app repositories, and i'm not one to add an app with looking into it, and to the reviews reasonably closely.

Last weekend I was reviewing some apps for a specific requirement and I was taken aback by the spammy and intrusive nature of the vast majority of apps.
It's now no longer useful apps that dominate, but the apps desperate to hook the user into some kind of trap, whether it be a subscription, or ad vs subscription model, or worse still, seemingly wanting user acceptance of one-sided T&Cs. I back out as soon as I see that. It's been getting worse over the years, but now, after this weekend's exercise, it's now become of little interest installing any more apps at all.