App development cost in AustraliaA comprehensive guide to average cost. Do you want to know how much app development costs in Australia?especially in various regions, as well as bonus cost-cutting tips. Depending on the developers you work with and the complexity of the app you want to build, the cost of mobile app development can be low, medium, or high. Apps that are easy to use for small businesses App development in Australia typically costs between $50,000 and $250,000. The exact cost will be determined by a variety of factors.