After purchasing the a Ioptron SkyTracker, they recommend that you purchase the Ioptron app $0.99 which tells you the exact location that Polaris should be within the retical. Some may argue that you shouldn't have to purchase the App but others may argue that an addition dollar on top of the purchase price isn't enough to warrant complaining. I tried to find free that would give me the same information, and came across a wonderful FREE iPhone app called "Scope Help". Scope Help provided all kinds of useful information for your night of viewing including all GPS information, moon data, offers a "red light" and provides a Polar Align diagram. After downloading I wasn't sure how this translated to the Ioptron retical so I decided to purchase the original Ioptron App. I compared the two apps and provided a screen shot above. On the free app "Scope Help" if you flip both the horizontal and verticle and set the FOV to 5 degrees it will provide you with the same information as the Ioptron App. You'll notice the little green dot on the image on the left is where Polaris should be within the finder scope.