iPhone & iPad
AvailableThe original experience, optimized for mobility. iOS 17.0 or later.
App Store →AstroCollect
Track Your Celestial Observations
The essential iPhone, iPad and Mac app for amateur astronomers who want to track their observations and build their personal sky catalog. Your data synced across all your devices via iCloud.
iPhone & iPad (iOS 17.0+) • Mac (macOS 14.0+) • 7-day free trial, then $2.99 / €2.99 • No In-App Purchases
Available on
Your observations synced across every device via iCloud. One app, everywhere.
Mac
New · v1.15Native macOS app with sidebar, multi-window and drag-and-drop. macOS 14.0 or later.
App Store →Apple TV
Coming soonYour observations on the big screen: photo slideshow and catalog browsing. Planned for v1.16.
See roadmap →Android
Under considerationAn Android version is being considered for the long term. No release date yet.
See roadmap →Features
Observation Planner
24-hour visibility chart, plan ahead, calendar export, real-time observing conditions.
Multiple Photos per Object
Add as many photos as you want for each object. Dedicated gallery, sort by date, track your progress.
6 Astronomical Catalogs
Solar System, Messier, Caldwell, NGC, IC and Point Objects. 394 celestial objects with search, type filtering and magnitude sorting.
iCloud Sync
Automatically sync your observations across all your devices. Offline mode, conflict resolution.
Sessions & Notes
Document your observing sessions with date, location, equipment and conditions. Add personal notes to each object.
Suggestions & Siri
Discover what to observe tonight with contextual suggestions. Quick access via voice commands and Siri Shortcuts.
Statistics
Analyze your activity with temporal charts, per-catalog progress, type distribution, locations and equipment stats.
Exports & Sharing
Session PDF reports, annotated photos, progress cards and "My Astro Year" annual report. Optimized for social media.
Badges & Achievements
25 subtle badges reward your progress. First steps, catalogs, night sessions. Can be disabled, iCloud synced.
On Mac too
Native macOS app with sidebar, multi-window, drag and drop from the Finder, and keyboard shortcuts. Your observations synced between iPhone, iPad and Mac.
100% Private
Your data stays on your device or private iCloud. No account required. No analytics, no tracking.
Screenshots
Your Privacy, Our Priority
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All your data stays on your device
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No account required
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No analytics, no tracking
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No data collection
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GPS coordinates not extracted by default
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GDPR & CCPA compliant
Who Is It For?
AstroCollect is perfect for:
🔭 Amateur Astronomers
Track your visual observations through telescope or binoculars.
📷 Astrophotographers
Catalog your deep sky object photos.
⭐ Messier Hunters
Track your progress in the Messier Marathon.
🌠 Astronomy Enthusiasts
Discover and learn celestial objects at your own pace.
Start Your Journey Through the Stars
Try free for 7 days, then $2.99 / €2.99 on the App Store
Compatible with iPhone and iPad (iOS 17.0+) and Mac (macOS 14.0+).