One-liner
A precise solar and lunar timing calculator for any location and date between 1901 and 2099, with detailed astronomical data.
Strengths
- Highly accurate astronomical calculations across a wide historical and future date range (1901–2099)
- Supports GPS/WiFi location detection and over 30,000 city database for easy location input
- Comprehensive data set including twilight phases, equation of time, declination, equinoxes, solstices, and moon phases
- Clean, focused interface with no ads or in-app purchases—users appreciate the premium feel at €4.99
- Strong user trust reflected in 4.81/5 rating from 470 reviews
Weaknesses
- No dark mode despite being a utility app used during early morning/evening hours (review: 'Would be much better with dark theme')
- Limited customization for sunrise/sunset alerts or notifications (review: 'Missing alarms for golden hour')
- No exportable data or sharing options for calendar integration (review: 'Can’t save times to calendar')
- UI feels dated; lacks modern iOS design language (review: 'Looks like it’s from 2015')
- No support for custom locations beyond cities or GPS (review: 'Need to enter coordinates manually')
Opportunities
- Build a dark mode version to improve usability during night photography or early morning planning
- Add customizable alerts for sunrise/sunset/golden hour with push notification support
- Enable exporting times to calendar (ICS) or sharing via clipboard/email for planners and photographers
- Introduce a simple map view to visually confirm location accuracy before calculation
- Offer a lightweight, free version with basic sun/moon times and a paid upgrade for full features
Competitors
- Sun Surveyor
- The Photographer’s Ephemeris
- Time and Date – Sun & Moon
AI-generated brief · 5/12/2026, 8:49:10 AM
