: Earned by completing missions; used to buy and upgrade planes.
In the standard version, progression is driven by two main resources: Sky Fighters 3D Mod Apk v2.1 (Unlimited Money)
As of current data, the official version has progressed to v2.7 . Mod versions labeled "v2.1" are significantly outdated and may not function correctly on newer Android operating systems. Sky Fighters 3D - Apps on Google Play : Earned by completing missions; used to buy
: A premium currency required for high-tier weapons and certain aircraft. : Earned by completing missions