Hi Bloke,
Checkout Boost app is exactly what you are looking for.
This app allows you to set free gifts, free shipping or discount (of your choice) to customers if they share their cart on Facebook, Twitter,... It will not only encourage them to finish their cart to catch your offer, but it will also help you reach more new customers on social networks.
Free ship / Free gift / Discount can be set for many purposes:
- Add free gifts some specific products. For example: buy iPhone get a cover for free
- Add free ship or discount depending on the amount in cart (greater than or less than is both applicable)
- Mix condition. For example: cart which contains "T-shirt" product and has total amount greater than $50
Hope it helps. Please feel free to drop me an email if you need any support :)
Helen