An Android app development cost is generally charged either on a fixed cost or an hourly rate. In both cases, several factors define the base rate which is the experience, skill, and location of the
developers, along with the number of features and complexity of the application. The hourly rate is defined based on the amount of work completed per hour. The number of hours is officially recorded and
the customer gets a continuous update on the tasks completed. In contrast, fixed cost is an estimated cost defined right in the beginning considering different factors in the development process.
In terms of numbers, an hourly charge varies between $25 and $150, while a fixed-cost project can range from $10,000 to $100,000.