Organisations going digital recognise that mobile app development is critical to their growth. Given the variety of mobile platforms, enterprise development teams have adopted a cross-platform approach which enables them to innovate new products that serve the largest range of users. However, mastering a cross-platform approach distils down to choosing the right development environment. This whitepaper helps developers assess the two leading frameworks for cross-platform development i.e. Facebook’s React Native and Google’s Flutter. It offers an in-depth comparison across a number of key factors that relate directly to development performance and enterprise cost efficiency.