Awesome game bro keep up the good work don't stop doing what you love cause of marketing your time will come.
No money for advertising and it's never worked in the past for us. Also, We've submitted many games to Apple for a feature but we are not a big publisher so we don't receive any response aside from the canned one. Again, we are trying to get out of the mobile market. No room for the little guy it seems. We don't have the market connections to do anything profitable without going through a publisher.
https://developer.apple.com//contact/app-store/promote/ FaceBook ads and Instagram ads let you control how much you spend everyday. The lowest daily budget is $5 I believe, reaches maybe 200 people a day. I made my daily budget $70 day with my click price $0.30, so every time someone tapped the ad I was charged $0.30. The ad reached 20,000 people with it running for two days. FaceBook ads show on instagram feed, facebook feed, and facebook mobile ad network. You can make it a video, video with a picture, multiple pictures, or one picture. https://www.facebook.com/ads/manager/
I spent around $150 and made $240 in ad revenue, pretty good result for me. All experiences will be different though due to all being different games. The game received 3,000 downloads, and 20 ratings. My highest on the charts was #2 in Bermuda and #656 in the U.S. Arcade. The game only took me a day to make so it was not the best, there were only maybe 300 daily users after the ad, I took it off the store after 3 weeks.
ASO mate... you seriously need to do ASO... ASO for Google Playstore is totally different from Apple AppStore.