# Armillary Sphere

> 3D astronomical app for celestial measurement and recording based on the Ptolemaic model. (iPhone/iPad app by HKU TELI.)

- Source: https://appshunter.io/ios/app/armillary-sphere/id1225026601 (this page in markdown: same URL + `.md`)
- Developer: [HKU TELI](https://appshunter.io/developer/1153931100)
- Category: Education, Utilities
- Price: Free
- Rating: 4.00/5 from 6 App Store ratings · 7 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.0 · 275 MB
- Languages: American English
- Released: 2017-04-11
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/armillary-sphere/id1225026601/reviews.md

## What is Armillary Sphere?

Armillary is a handy astronomical application for measurement and recording specific times, locations and movement of the Sun and the stars, based on a Ptolemaic model. With this app, we can easily determine the time and position of sunrise and sunset, the length of a day, the altitude of the sun at different times of the year and the position of celestial objects.

This 3-dimensional Armillary app reconstructs the ancient armillary sphere with the help of modern technology. The ancient device, believed to be first invented around 200 B.C., had been in use for over 2,000 years in history.

FEATURES
•	This modern-day counterpart can be displayed in any scale and rotated by any angle. 
•	You can make desired measurements by making relevant adjustment of the “Meridian”, “Equator”, “Horizon”, “Ecliptic” and “Altitude” on the app.

USER CONTROLS
•	Touch-screen rotation – Gently swipe or slide fingers for desired rotation of armillary sphere rings 
•	Swipe-touch panel – Swipe fingers on the display panel for desired movement of armillary sphere rings 
•	Pinch-to-zoom – Use index finger and the thumb in a pinch motion to enlarge or shrink the screen as desired.

## Key features

- 3D astronomical model
- Measure celestial positions
- Record Sun and star movements
- Determine sunrise/sunset times
- Calculate day length
- Adjustable Meridian, Equator, Horizon, Ecliptic, Altitude

## Recent user reviews (7 of 7)

All indexed reviews: https://appshunter.io/ios/app/armillary-sphere/id1225026601/reviews.md

### 1/5 — The Worst apps ever

*2025-02-28*

I am student from UST, this app is so good that deserve a star!!!

### 5/5 — Amazing app - perfect

*2020-10-21*

Amazingly, this is exactly what I wanted. I’ve always wanted an Armillary sphere, but I never liked the cheap fake ones that are decorative only. 

This is better than the real thing because it is accurate, with me all the time, and comes with instructions. I’ll learn on this one and know what I’m doing if I ever find a real one to own.

Thank you, developer, for doing some brilliant work! Congratulations!!

### 5/5 — So Amazing!

*2018-07-25*

What an awesome app. So friggin cool!!

### 5/5 — Schön und wunderbar!

*2017-04-13, version 1.0*

Die app ist sehr schnell, einfach und total nett. Empfehlen👍🏻

### 5/5 — Dickie C

*2017-04-13, version 1.0*

Awesome tools for education, useful!

### 5/5 — Meko

*2017-04-13, version 1.0*

素晴らしいツール

### 5/5 — AY

*2017-04-13, version 1.0*

Amazing tool!

## Frequently asked questions about Armillary Sphere

### What is the learning methodology of Armillary Sphere?

Armillary Sphere utilizes a visual and interactive 3D model to help users understand astronomical concepts. By manipulating the virtual armillary sphere, users can directly observe and measure the positions and movements of celestial objects.

### How does Armillary Sphere track user progress?

Armillary Sphere is primarily a measurement and recording tool. While it allows for the recording of specific times and locations, it does not offer formal progress tracking or certifications for learning.

### Is Armillary Sphere suitable for young learners?

Yes, Armillary Sphere has an age rating of 4+ and is supported on iPhone, iPad, and iPod. Its interactive 3D display can make learning about astronomy engaging for a wide age range.

### What devices does Armillary Sphere support?

Armillary Sphere is available for iPhone, iPad, and iPod devices. It was last updated on March 19, 2019, with version 1.0.4.

### How often is Armillary Sphere updated?

The latest version of Armillary Sphere, 1.0.4, was released on March 19, 2019. The app was initially released on April 11, 2017.

### What do users like most about Armillary Sphere?

Based on its 4.0-star rating from 6 reviews, users likely appreciate its educational value and the ability to visualize and interact with a 3D astronomical model. The app reconstructs an ancient scientific instrument with modern technology.

### Does Armillary Sphere have ads?

No, Armillary Sphere does not contain advertisements. It is a completely free application.

### Can I use Armillary Sphere offline?

The provided description does not specify offline functionality. However, as an educational tool focused on measurement and recording, it is likely designed to function without a constant internet connection.

## Version history (last 5 releases)

### 1.0.4 — 2019-03-19

UI update for iPhone X

### 1.0.3 — 2018-05-26

Further enhancement on tutorial - now separated according to different functions

### 1.0.2 — 2018-05-18

Added a tutorial

### 1.0.1 — 2017-04-13

UI enhancement

### 1.0 — 2017-04-11

No release notes.

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All apps by HKU TELI: https://appshunter.io/developer/1153931100

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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 2026-06-01.*