At first the gaps available to make combos of airplanes are scarce, but when you level up they increase. So the possibility of making larger, more complex combinations and unblocking several newer, faster aircrafts will get you even more profit.
Gameplay is very similar to Merge Cakes! and to Train Merger, where your business will prosper thanks to the combos you put together, offering the possibility of investing your earnings by buying directly better planes, some with coins and others with diamonds which reduces the amount of time spent in merging them.
Merge Plane numbers your airplanes so that there is no confusion and so that you know exactly which models are available to you at any time. Plus there are also different bonuses, like for speed or for multiplying your profit within a certain timeframe.
Android 4.1 or higher