The conversion optimizer for apps allows:

The conversion optimizer for apps allows:

• A) AdWords to automatically take into account dozens of signals (location, time of day, CTR, device, etc) and adjusts bids accordingly across search and display inventory with the goal of helping Advertisers hit their desired Cost Per Installs

• B) AdWords to automatically take into account dozens of signals (location, time of day, CTR, device, etc) and adjusts bids accordingly across search and display inventory to help advertisers hit their desired Cost Per Impression goal

• C) AdWords to automatically take into account dozens of signals (location, time of day, CTR, device, etc) and adjusts bids accordingly across just search inventory to help advertisers hit their desired Cost Per Install goal

• D) AdWords to automatically take into account dozens of signals (location, time of day, CTR, device, etc) and adjusts bids accordingly across search and display inventory to help advertisers hit their desired Cos Per Click goal

Explanation: Conversion Optimizer for apps: AdWords automatically takes into account dozens of signals (e.g., location, time of day, CTR, device) and adjusts bids accordingly across search and display inventory to help advertisers hit desired cost-per-install goals

Read more here: https://support.google.com/partners/answer/6208446?hl=en