I been working with heyzap mediation for a week now. I never have I ever faced so much difficulties. From the integration to making build. Here are things that you may see after integrating heyzap mediation: 1# The itunes connect will not accept your build: You build will get stuck on a loop while uploading. Later it will say itunes is not available or some error. 2# Image issue ERROR ITMS-90096 Issue With Uploading Game To iTunes This issue is very common, the heyzap mediation conflict with the integral image sprite system, as a result itunes will say your launch image is missing for iphone 5. and your game will not be accepted. 3# Your game will crash if you integrate admob network or turn on from the dashboard. The admob google SDK conflicts with the hey zap mediation. as a result the game crashes on start. The error has been reproduced. Hope @Andy can give solutions to your problems in future. I think #heyzap team should work together with buildbox to make a perfect SDK only for buildbox. Comments are appreciated.