2025-09-10 00:00:00 Grow My Money – Shop, earn and grow Turn your shopping cashback into mortgage payments or superannuation contributions. It's that easy! The Grow My Money cashback app is the quickest and easiest way to start paying down your mortgage or growing your superannuation. Boost your financial well-being and lessen your stress, knowing that every time you shop, you can earn cashback into your mortgage or superannuation account - or both! We're free to join and pay into all Australian financial institutions, super funds and SMSFs.