The intention is to determine raw estimates effort in man hours for the development of Android app, based on basic Screen UI/Wireframes.
For example: Design team provided 10-screens. Based on the judgement of development team, and looking at the screen UI, we divided it into Simple, Medium complex and Complex Screens
Also, since this is mobile app, which fetch its data using Web Service using JSON we also need to estimate the backend integration effort for the same.
Are there any tools (web-based or any other form) available, using which the effort in man hours can be calculated for Android App development?