SAN FRANCISCO–(BUSINESS WIRE)–REVELRY – Revel Systems, the leader in iPad Point of Sale Solutions, today announced a global framework agreement with Shell Retail, which allows for the implementation of Revel’s iPad based POS system services at selected retail fuel sites worldwide. This agreement follows a proof of concept in 2015 – 2016. Revel is an iPad Point of Sale solution for single and multi-location businesses founded on the mission of keeping business owners and operators ahead of the