Will the dedicated Android developer I hire work only on my project?

Yes, the dedicated Android mobile app developer you hire will work full-time on your project only, just like any other regular employee.

Will I get technical support after the app is live on Google Play Store?

Yes, you will get technical support and maintenance services as well. You can communicate complex technical issues to the developer and you can expect a resolution as soon as possible.

How long will it take for completing an Android application?

Development and design time are always dependent on the features needed and the complexity required to achieve the same. So, a fair estimation is only possible after knowing the project requirements.