AstroPup Horizon
Automatic & Accurate Horizons
Free
AstroPup Horizon allows rapid and accurate capture of your local horizon, using your iPhone or iPad's on-device Neural Engine. No need to capture individual points, just capture a panorama and let machine learning determine figure it out. Magnetometer calibration gets a boost if you include the sun in your image; we'll improve calibration with astrophysics. If needed, make surgical edits or repaint the horizon line within the app. After capture, you can export the data astronomy software such as N.I.N.A., Stellarium, Cartes du Ciel, and SkySafari, and our own AstroPup Sky.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- Aa new PNG Image option in Export saves your horizon as a PNG. Thanks for the suggestion, Chris!
- The SkySafari export now shows a preview share it.
The developer, Aaron Freimark, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Aaron Freimark
- Size
- 120.7 MB
- Category
- Utilities
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later.
• iPhone 6S
• iPhone 6S Plus
• iPhone SE (1st generation)
• iPhone 7
• iPhone 7 Plus
• iPhone 8
• iPhone 8 Plus
• iPhone X
• iPhone XS
• iPhone XS Max
• iPhone XR
• iPhone 11
• iPhone 11 Pro
• iPhone 11 Pro Max
• iPhone SE (2nd generation)
• iPhone 12 mini
• iPhone 12
• iPhone 12 Pro
• iPhone 12 Pro Max
• iPhone 13 Pro
• iPhone 13 Pro Max
• iPhone 13 mini
• iPhone 13
• iPhone SE (3rd generation)
• iPhone 14
• iPhone 14 Plus
• iPhone 14 Pro
• iPhone 14 Pro Max
• iPhone 15
• iPhone 15 Plus
• iPhone 15 Pro
• iPhone 15 Pro Max
• iPhone 16
• iPhone 16 Plus
• iPhone 16 Pro
• iPhone 16 Pro Max
• iPhone 16e
• iPhone 17 Pro
• iPhone 17 Pro Max
• iPhone 17
• iPhone Air
• iPhone 17e
• iPhone 18 Pro
• iPhone 18 Pro Max
• iPhone Duo - iPad
Requires iPadOS 26.0 or later.
• iPad Pro (9.7‑inch)
• iPad Pro (9.7‑inch) Wi‑Fi + Cellular
• iPad Pro (10.5‑inch)
• iPad Pro (10.5‑inch) Wi‑Fi + Cellular
• iPad mini (6th generation)
• iPad mini (6th generation) Wi-Fi + Cellular
• iPad mini (A17 Pro)
• iPad mini (A17 Pro) Wi-Fi + Cellular
- iPhone
- Languages
English and 6 more
- English, French, German, Hungarian, Italian, Japanese, Spanish
- Age Rating
4+
- 4+
- Copyright
- © 2026 Aaron Freimark