Zelela

Zelela is an essential app for homebodies, as it lets you put in food orders for delivery right from the comfort of your smartphone.

To use Zelela just pick where you want to order food from, select items from the menu, and wait for the delivery to show up. Once you've sent your order you can leave a review of the delivery service, prices, and food itself. You can also read other users' reviews ahead of time and use them to find the place best suited to offer what you're looking for.

The most interesting thing about Zelela is that it lets you send orders via QR code or even offline.

The only issue with Zelela is that you can only order from places registered with the app, so the final experience is left a bit up to luck.