Mobile apps have become a necessity for small business owners in today’s world. According to 2014 data from Nielsen, the TV ratings company, the typical American adult spends more than 30 hours per month using apps. Mobile apps are a terrific way to ensure a streamlined user experience across different devices, to engage with customers, and to build brand loyalty. Yet they can be expensive to design and build. Here are 5 key ways to save money while building an app that makes you proud.