★★★★★Dan Lv1.62 May 2025
Great program, great customer support! This app is great foe novice or pro. It's great for learning celestial as it shows the user where and in what pub the info is obtained. For the professional it provides an accurate and fast means of sight reduction. I recently used the app to. calibrate a bubble sextant. I was able to make a number of accurate shots in rapid succession using the sun's slope path. I was able to see how accurate the sights were and adjust accordingly. highly recommended!