Imagine for a moment that you’re blind, and that you’ve a hankering for beans on toast. And you know that you have a tin of baked beans and a tin of custard in the kitchen press, but you can’t remember which one is which. Well now there’s an app to help you out, Be My Eyes, allowing people around the world to see what’s right in front of you through your smartphone and save you from opening the creamy vanilla tin.

Created by Hans Jørgen Wiberg, Be My Eyes was first proposed at a start-up event in Denmark in 2012, and has since become a nonprofit that’s facilitated over 23,000 different interactions between its users. The app works by connecting connecting blind users to volunteers worldwide who can assist with everyday tasks like reading the expiration date on foods, locating the correct doorbell in a block of flats or reading flyers.

As well as donating their time, volunteers are even rewarded for lending their eyes, as the app allows users to ‘level up’ the more they use it, while trolls who use it maliciously can be quickly reported and blocked from the service. Sighted volunteers that are too busy to answer the call can simply ignore it and it will be transferred to the next person in the database.

But you might be waiting a while for that to happen; The Telegraph reports that there are currently 8,500 blind users registered with Be My Eyes, and 103,000 volunteers happy to help.

Free to download, albeit only on iOS for now, you can listen to a recording of the UK composer Kevin Satizabal using Be My Eyes below, to see how it works in the real world: