Well, it depends.
Your app will be live in the My Mobile App Directory within a few minutes of you completing your app setup.
All apps are reviewed by our Internal Review team; if there's any issue with your app, it will be removed from the Directory and you'll be informed of the reasons why.
Your stand-alone app will take a little longer before it's live in the app stores.
All apps undergo full review by the relevant app stores, which may take up to a week. This is at the discretion of the app stores, and we have no control over the pace of their review. Usually it's quick, but at times it has been known to go over a week too.
Apple may taken longer, still, as you need to set up your own Apple Developer Account in order to have an Apple app. We work with you to make this process as smooth as possible, and get your app published as quickly as possible.