Grabby is an E-Commerce App designed to solve the problem of online shoppers by allowing them to browse for items easily, preorder, track their purchases, and make secure payments.
The whole design process from Problem Discovery, Ideation, Design, prototyping, and Usability Testing has been documented in a full Case Study, continue reading on Behance below
https://www.behance.net/gallery/143431793/Grabby-E-commerce-Case-study
Meanwhile, here are some mockups from the design