This document proposes a concept for sharing data balances between users of the same mobile operator service. It describes three ways to share data balances: 1) consuming a fixed amount of the main balance, 2) consuming data balances from each user, or 3) sharing data under the downloading speed limit. The concept provides advantages for both users and the mobile company. For users, it enables easier connectivity, secure data transfers, cheaper access, and efficiency. For the mobile company, it could increase customers and profits from additional phone, plan, and service usage.