Real Build Pro is described as 'provides builders, remodelers, and contractors with tools for pre-sales, project management, budgeting & financials, and customer management' and is an app in the Office & Productivity category. There are four alternatives to Real Build Pro for iPad, iPhone, Online / Web-based and SaaS. The best alternative is Procore. It's not free, so if you're looking for a free alternative, you could try Buildertrend. Other great apps like Real Build Pro are Knowify (Paid) and CoConstruct (Paid).
Procore is enterprise software to help construction professionals manage risk and build projects. Procore has a diversified business model with products for Project Management, Construction Financials, Quality & Safety, and Field Productivity.