# SkyChrono

> SkyChrono (iPhone/iPad app by Bian Dhoan Kwik.)

- Source: https://appshunter.io/ios/app/skychrono/id6756916318 (this page in markdown: same URL + `.md`)
- Developer: [Bian Dhoan Kwik](https://appshunter.io/developer/1793925532)
- Category: Utilities, Education
- Price: Free
- Age rating: 4+
- Requires: iOS 18.0 · 1 MB
- Languages: American English
- Released: 2025-12-24
- Data updated: 2026-05-19
- User reviews in markdown: https://appshunter.io/ios/app/skychrono/id6756916318/reviews.md

## What is SkyChrono?

SkyChrono is a real-time astronomical dashboard for anyone who plans around the sky—astronomers, astrophotographers, navigators, and curious stargazers.

SUN
• Live altitude & azimuth
• Sunrise, sunset, and solar noon
• Civil / nautical / astronomical twilight
• Current lighting state (day, twilight, night) + day length

MOON
• Current phase with illumination %
• Moonrise & moonset
• Live altitude & azimuth
• Phase progression at a glance

TIME SYSTEMS
• Local time + timezone
• UTC
• Julian Date (JD) / Modified Julian Date (MJD)
• Greenwich Mean Sidereal Time (GMST)
• Local Sidereal Time (LST)

LOCATION
• Automatic GPS position (optional)
• Manual coordinates anywhere on Earth
• Decimal degrees or DMS input

ALERTS & NIGHT MODE
• Notifications for sunrise/sunset, twilight boundaries, golden hour, and major moon phases
• Night Vision mode (red theme) to preserve dark adaptation

EXPORT & LEARN
• Save the dashboard as a high-resolution image
• Export data as JSON, or copy any value with a tap
• Built-in explanations for key astronomy concepts

PRIVACY FIRST
• No ads, no subscriptions
• No tracking—your location stays on device
• Manual location mode for complete control

SkyChrono helps you pick the right moment—whether you’re planning a shoot, observing, or learning celestial mechanics.


## Version history (last 1 release)

### 1.0 — 2025-12-25

No release notes.

## More apps by Bian Dhoan Kwik

- [OrbitCalc](https://appshunter.io/ios/app/orbitcalc/id6743425109)

All apps by Bian Dhoan Kwik: https://appshunter.io/developer/1793925532

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-19.*