An app that tells you how to use the app

You need to use some app, but you don’t remember how. Like an app to check your electricity supply on a smart meter. You used it once, saved it somewhere and now you can’t find it or remember how to find it.<br><br>We need a meta app that you can use to find your apps. Just pull down to see the instructions for the app you want to use.<br><br>It could be called app-help.<br><br>Tag yourself if you have an app idea.