I was arguing with my best buddy today about it. I consider that "Learn To Fly" is waaay easier, and does not need much attention. I seek difficulty in games, I like to beat them as a principle, as a core of my geekness. "Pirate launch" has lesser achievement and upgrade options. "Pirate launch" clouds are not making funny faces. But game needs your attention, control, grip. Getting to the end of level in "Learn to fly" could be done with eyes closed. Just go in wawes left right left right left right with amplitude needed. Whole process is boring. Nothing differs, nothing happens. You just fly, listening to boring music.
Both are Great games but I like Learn to Fly better. It has a funny ending and I like thats its different than the other launching game. It doesnt use a cannon you use a big slide to launch yourself. Pirate Launch I had difficulty since it takes forever to get to the treasure and I got bored of playing it half way there.
Pirate launch is just a rip-off of many different games, I'd prefer NANACA CRASH then it any day. It lacks replay value, I've beat the game only half of the upgrades.
At least in NANACA CRASH I tried some over 1000 times coming up some 16.8km having the right to brag about it.