Make use of Geena to not only manage your customers' details (Name, Phone Number, Email, and DOB) but also track and manage the lists of products bought by them, the amount owed to or owed by a customer, and the total amount spent/the total products sold to a particular customer...
Don't like the option of printing receipts? Worry no more! With Geena, you can also send customized sales receipt to your customer via WhatsApp or Email.

This is awesome... gotta check it out