"It was important for us to find the right investors and to build a board that has an understanding of the telecommunications and advertising industries - people who are in a position to provide the right governance to help myself and our exec team achieve our goals in 2017 and beyond."
The company wanted to expand globally, and was currently placing an emphasis on large developing markets in South East Asia where Android was dominating the market. The company was also looking to expand into Australia.
The phenomenon of "sponsored data" was on the rise, with mobile data being the most sought-after source of connectivity, Reinartz said.
People were increasingly unwilling to pay for minutes or SMS, instead using services like WhatsApp and Facebook Messenger to make calls and send texts. Postr gave mobile operators another revenue-raising tool.
People who download Postr's white-label apps get personalised advertising appearing on the lock screen of their cellphone or tablet, where they can either click to engage with it or unlock and use their device as they normally would.
They earn benefits from their telecommunications provider, ranging from 200MBs to 1GB of monthly mobile data, call time or other credits, depending on market conditions and telco offerings.