Shopi is a free iPhone application from Aussie developer Sapient Pair that attempts to make grocery shopping easier. The app's main claim to fame is that it "learns" the more you use it, updating your favourite food items and ordering preferences automatically. You can also share your list with friends and get them to make updates while you shop.
I'll often be heading back home from the supermarket when I belatedly remember to check my mobile phone: sure enough, there's a new message from my wife informing me that we're also out of milk/bread/nappies. Gah!!!!
If only there was a way for her to magically add extra items to the shopping list while I shop. That's the concept behind Shopi. The app notifies people you live with when you begin shopping and allows them to add or edit items in real time. It also uses the iPhone's GPS to inform them when you've left the shop.
The app's interface is geared towards automated customisation: it records how you like your shopping list to be arranged, and makes that the default. Crucially, it also has an auto-unlock feature which means the app is open and running each time you pull it out of your bag or pocket.
Shopi is currently free to download on Apple devices iOS 7 or later. However, if you want to get the ad-free version you'll need to pay a rather steep yearly subscription of $4.99. Head to the App Store to get the download.