Thanks for giving the app a try. That notification is just to tell you that the reminder is now active. It’s the confirmation message.

Depending on your location, the GPS may work in the building as well - so you’d be able to set the reminder when you’re inside. Also, FWIW, if you’ve set up a reminder and you subsequently loose GPS (or if the signal diminishes to a point where it’s unreliable), the pedometer fallback will engage.

Thanks for checking out our app.
At this time, you’re only able to set a reminder for one item at a time. We’ve done this for a few very important reasons:

Thanks for checking out our app. Don’t Leave It! primarily uses GPS, but in situations where GPS weak or unavailable, the app uses Pedometer data as a fallback. As you likely have experienced, GPS can be a bit unreliable on mobile, unless the signal is consistent and strong.