How to promote a mobile app?

Hello! Make the app for iOS soon planning to release it in the App Store. The question arose - how to promote it? To catch up with the audience? How to form initially of the content, given that app is something like avito, respectively if people will use it to download and it is empty - not suitable. Better to run it first in one city (for example, only in St. Petersburg) or throughout Russia and the CIS ? If anyone have a similar experience - I would be very grateful for councils and answers
April 19th 20 at 12:45

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