AdWords Campaign Optimization for Android App

I'm seeking an expert in Google AdWords, specifically experienced in optimising campaigns for Android apps.

The primary goal of this campaign is to increase the number of downloads for my app. While I am open to all strategies and ideas, I am particularly focused on maximising the effectiveness of my budget and reaching as many potential users as possible.

While I didn't specify a target age group, I'm hoping that you, as an expert in this field, will be able to advise me on the most viable demographic for my app.

Ideal Skills:
- Expert knowledge in Google AdWords
- Previous experience with Android app campaigns
- Ability to identify effective strategies for increasing downloads
- Strong understanding of audience targeting on the AdWords platform