# AstroCal Sky Calendar — Calendar and astronomy in sync

> Calendar and astronomy in sync (iPhone/iPad app by 明杰 曾.)

- Source: https://appshunter.io/ios/app/astrocal-sky-calendar/id6762348929 (this page in markdown: same URL + `.md`)
- Developer: [明杰 曾](https://appshunter.io/developer/1695506895)
- Category: Productivity, Reference
- Price: Free
- Age rating: 4+
- Requires: iOS 15 · 19 MB
- Languages: American English
- Released: 2026-06-03
- Data updated: 2026-08-27
- User reviews in markdown: https://appshunter.io/ios/app/astrocal-sky-calendar/id6762348929/reviews.md

## What is AstroCal Sky Calendar?

AstroCal seamlessly integrates standard calendar planning with real-time astronomical sky events in one simple, elegant experience.

Track your important dates, organize tasks, and monitor the actual movements of the night sky — from precise moon phases and meteor showers to visible constellations and planetary alignments. Whether you are an amateur astronomer planning your next stargazing session, or simply want to track real celestial events as part of your daily routine, AstroCal helps you stay perfectly coordinated with both your schedule and the universe.

Designed for a clean and focused experience, AstroCal makes it easy to browse dates, manage personal events, and access key astronomical parameters at a glance.

Features

• Clean Calendar Utility: An intuitive, minimalist interface to manage your daily schedules and personal events.
• Real-Time Astronomy Data: Track visible constellations, moon phases, solar/lunar eclipses, and upcoming celestial events.
• Stargazing Planning: Stay informed about optimal night sky observation windows based on astronomical timing.
• Streamlined Navigation: Smooth, fluid gesture support designed for quick daily and future planning.
• Lightweight & Focused: A zero-bloat, highly responsive experience tailored for efficient everyday use.

AstroCal is built for individuals who want more than a basic calendar — a practical, functional tool to stay organized while keeping an eye on the wonders of the scientific universe above.


## Version history (last 5 releases)

### 1.3.3 — 2026-08-10

Thank you for your feedback! New features in this release:
New: Added new astronomical event data, including the 2027 annular solar eclipse and 2026 Draconid meteor shower;
Improved: Updated Xcode schemes and Widget Extension target configuration;
Improved: Updated event datasets, observable target presentation, and Watch summary data;
Fixed: Corrected widget event matching for actor isolation.

### 1.3.2 — 2026-07-17

Thank you for your feedback! New features in this release:
New: Based on shared summary snapshot data;
New: Configurable Astro event widgets;
Improved: Added support for timeline refresh for summary widgets and event widgets;
Fixed: Corrected the spherical direction format of coordinates in widget summary data.

### 1.3.1 — 2026-07-05

Thank you for your feedback! New features in this release:
New: Added configurable AstroCal event Widget support using the shared app group summary snapshot;
New: Added static AstroCal summary Widget support using a refactored Widget extension structure;
Improved: Added Widget timeline reload support for summary and event Widgets;
Fixed: Corrected coordinate hemisphere formatting in Widget summary data.

### 1.3.0 — 2026-07-01

Thank you for your feedback! New features in this release:
New: Added Apple Watch companion app support;
New: Added widgets for quick access to astronomy summaries;
Improved: Enhanced moon phase and celestial event display;
Fixed: Improved compatibility and reliability for Watch app submission.

### 1.2.0 — 2026-06-18

Thank you for your feedback! New features in this release:
New: Added an immersive 3D Moon preview to the moon phase detail page;
New: Added higher-resolution lunar surface textures and more realistic surface relief;
New: Enhanced moon phase detail navigation with a clearer reminder entry;
Fixed: Improved 3D Moon preview loading performance;
Fixed: Refined Moon lighting and phase rendering for a more natural viewing experience.

## More apps by 明杰 曾

- [KiCAD PCB Viewer](https://appshunter.io/ios/app/kicad-pcb-viewer/id6450205342)
- [KiCAD FootPrint Editor](https://appshunter.io/ios/app/kicad-footprint-editor/id6504434790)
- [KiCAD Schematic Viewer](https://appshunter.io/ios/app/kicad-schematic-viewer/id6740265241)
- [n8n triage](https://appshunter.io/ios/app/n8n-triage/id6759234238)
- [Axialmark: 3D CAD Model Viewer](https://appshunter.io/ios/app/axialmark-3d-cad-model-viewer/id6803319220)

All apps by 明杰 曾: https://appshunter.io/developer/1695506895

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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 2026-08-27.*