Download direct :- http://www.cheatsandroid.com/tap-paradise-cove-cheats-hack/
As you level up you can buy more ships with coins. You can also buy some ships with rubies but again you will have to buy them with cash to get the amount that it is asking for those ships.
If you have made a commitment to not spend money then just avoid those. At level 9 I have four ships. Setting your ships out to sale is a great way to bring back goodies. You can get Pearls, Coins, and other Gems.
You can also do battle with other ships but I avoid this because most often it leaves your ship with damage that is costly to repair. The battle scenes are fun. You have to attack when the circle over the other ship is green.
I just wish it did not cost so much to get your ship fixed after the battle. To me it is not worth whatever you get for winning the battle.
As you level up there will be other items you can get to protect your ship and items to help you in battle. You can also visit others through the Game Center.
Again I have not really been interested in the battles so this does not interest me but if you like that sort of thing, check it out.
VideoDorks
BookDorks
AudioDorks
CssDorks
TVDorks
PhotoDorks
ThemeDorks