Sky Planner vs Caelo

Is tonight worth heading out under the stars? Make your plan before you pack. DarkScout brings cloud cover, Moon conditions, darkness and observing targets into one place. Every feature is included, with no trial or subscription required. KNOW WHEN TO GO Check your Tonight recommendation, Astro Score and best observing window. Open Score Lens to understand which conditions help your night and which get in the way. PLAN YOUR NEXT SESSION Choose a target, date and location. Plan up to 14 nights ahead, compare observing locations and explore the full astronomical object catalog. NEW: LEONIDS METEOR WATCH Explore the 2026 field guide, check the radiant and Moon for your observing place, and record a timed watch with a red-screen meteor counter. Pause for breaks, save your counts and share a summary. The new field guide is in English and works offline. BUILD YOUR OBSERVING HABIT Explore 14 observing challenges with practical steps, local progress and direct links to the planning tools you need. CHECK BEFORE YOU DRIVE Review the 72-hour cloud-cover map, save unlimited observing spots and use horizon profiles to plan around your view. Set location alerts and your own thresholds. ENJOY THE NIGHT TOGETHER Browse astrophotos, share original-quality images, or join and host observing sessions with participant chat and weather backup plans. For stargazing with your eyes, binoculars or a telescope, and for planning astrophotography. Forecasts can change; recheck conditions before leaving. Requires iOS 26 or later. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Your sky's quiet lookout — honest, even when it's "not tonight." Caelo knows your sky because you mapped it: the trees, the fence line, the roof next door, whatever actually stands between you and a clear shot of the night sky. Caelo Pro puts that horizon to work everywhere it matters. Open your Observing Plan and every recommendation already accounts for your yard. Not a generic transit time off a star chart, but the real window: when a target clears your roof, and when it drops behind next door's oak tree. A flat-horizon planner can't do that. Pro plans your night, not a generic one. Pro also shows you further ahead: This Week lays out seven nights of visibility at a glance, and This Year shows the whole season a target climbs through your sky, so you can plan around months instead of guessing at them. Caelo would rather tell you "not tonight" than send you out for nothing.