Making Money with Android

Ads for an Arabic Crossword free Game - Target (Middle East and Arab countries)

Hello,

I am used to Facebook ads, my latest (Arabic Crosswords) game is performing better than my previous ones, I don’t know if it is a good rate but I got 450 Downloads for a 30$ (app installs) ad on Facebook, as before i used to get 70 downloads max for the same amount on previously release games. Now Im thinking of using admob banners, do you recommend anything else or any tips and tricks before I release my money into the digital world? For now I have 100$ Budget to start with. My Target Audience is Middle East and Gulf countries, but keep in mind that Egypt is occupying 68% of my downloads.

Thank you in advance for any help.