Hiku provides similar functionality, but it’s a dedicated device that scans barcodes and then adds the item to a shopping list in the cloud. When you’re getting low on milk, scan the barcode on the carton and milk will be added to your shopping list - which is available to your smartphone when you go shopping. If you run out of something that doesn’t have a bar code, just speak into the device.
It’s rechargeable and works for ~2 months on a charge and uses WiFi to connect to the cloud. It’s also magnetic so you can stick it to the side of your refrigerator. About $80.
As embedded controllers get cheaper and smaller, expect to see more single-purpose devices like this.
For more information: http://hiku.us