ShipCross Pro (b4a.shipcrosspro) on Google Play
With this game-simulator you have to cross a heavy traffic lane with your ship without collide other vessels that navigate around. The complete game has 5 levels but the version free has the initial 2. In each level you will manage rudder and engine of a merchant vessel that gradually is bigger in size. Gradually,with each level, your rank will go up from "Cadet" to "Captain" (Master). This game-simulator has not require from your phone or tablet any permission, there is not ads of publicity, and is not heavy. Good luck and became a wise Captain.