If it solves a pain point.

Good question. When something is waiting for me? I should make that the case with my app...

1. A usecase that benefits me. eg bank, maps, uber... 2. A buzz about the app. eg. Instagram, clubhouse.. 3. Curiosity based on reports or reviews. eg opencamera, snapseed 4. Advertising that hits home. eg. Camo, 5. To encourage alternatives. eg. Koo, Blusmart

If it reduces my day-to-day work or increases my productivity I will install for sure

Word of mouth. If 5 closest people I know are using it, I might install it. Playstore / app store listing copy & creative have zero impact on the decision to install an app.