Star Exposure Calculator vs Shutter Sky

Star Exposure Calculator is an app that helps you calculate the right exposure settings for pin-sharp stars in astrophotography. Features: • Calculate star exposure via simple or complete NPF rule for pin-sharp stars • Calculate star exposure via 500 rule • Calculate focal ratio of your telescope • Telescope magnification calculator • Maximum telescope magnification calculator • Telescope true field of view calculator We constantly update the app to provide more features that users are looking for, so expect even more with future updates.

Shutter Sky is the ultimate weather assistant designed for photographers. Whether you're a professional or enthusiast, our app helps you plan the perfect shoot by analyzing weather conditions specifically for photography. Shutter Sky makes it easy to know when to go. KEY FEATURES - Shutter Score: Our custom algorithm gives a simple rating of shooting conditions from 0-100%, so you instantly know when to grab your camera - Light Quality Analysis: Detailed insights on light harshness, diffusion, and photography suitability - Optimal Timing: Shutter Sky lets you know when the best upcoming conditions are expected - Weather Impacts: See how cloud cover, temperature, wind and precipitation affect your photography - Location-Based Recommendations: Save your favorite shooting locations Why Photographers Love Shutter Sky Generic weather apps don't understand what photographers need. Shutter Sky eliminates the hassle of checking multiple apps and analyzing conditions manually to answer the simple question: is now a good time to go shoot? - Know exactly when light quality will be high - Plan landscape shoots when visibility is optimal - Save time and go only when conditions are worth it Download Shutter Sky today and never miss the perfect conditions again! SHUTTER SKY SUBSCRIPTION For optimized user experience, access to Shutter Sky requires a paid subscription after a 7-day free trial. All subscription tiers provide unlimited access to Shutter Sky's premium photographic weather condition forecasts. You can subscribe to the following plans: - 1 month - 12 months Due to the costs associated with retrieving realtime weather data, we are unable to offer a free tier at this time. Subscription automatically renews unless auto-renew is disabled at least 24 hours before the end of the current period.  Account will be charged for renewal within 24 hours prior to the end of the current period at the cost of the selected plan.  Subscriptions may be managed by the user and auto-renewal may be disabled by going to the user's Account Settings after purchase. Any unused portion of a free trial, if offered, will be forfeited when the user purchases a subscription. Usage subject to Apple's standard End User License Agreement https://www.apple.com/legal/internet-services/itunes/dev/stdeula/