Junk Jack X is one of the best games available for iPhone. My girlfriend and I have played countless hours, as it lets us focus on different things that interest us at different times (be it exploration, building, crafting, farming, or keeping pets). Anyone who likes Terraria/minecraft type games will love junk jack x, as its obvious it was made for iPhone from the ground up.
However, weve been waiting for this update for months and its a little underwhelming, to be honest. The graphics do look better and the game is more engaging as the mobs are more of a challenge, but it doesnt seem like they needed to keep us waiting for this update for nearly a year. I dont even mind losing my world, by the way, as I understand that they had to rebuild the engine and if anything it gives me more to do as I try to rebuild my empire.
By the way, you DONT have to rebuy your in-app purchases. In the shop menu, press the green circular button and it will restore your in-app purchases. Ive seen some reviews here complaining about the game forcing you to pay for in-app purchases again, and that is simply not true.
All-in-all, I would still highly recommend junk jack x to anyone who wants a game they can sink hours and hours into.