# Eclipse Countdown — Solar Eclipse precise tool

> High-fidelity astronomical tool for precise solar eclipse timings and observation guidance. (iPhone/iPad app by BESSELIAN ELEMENTS PTY LTD.)

- Source: https://appshunter.io/ios/app/eclipse-countdown/id6746715829 (this page in markdown: same URL + `.md`)
- Developer: [BESSELIAN ELEMENTS PTY LTD](https://appshunter.io/developer/1896001781)
- Category: Education, Weather
- Price: $1.99
- Age rating: 4+
- Requires: iOS 15.1 · 49 MB
- Languages: American English
- Released: 2026-01-14
- Data updated: 2026-08-29
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/eclipse-countdown/id6746715829/reviews.md

## What is Eclipse Countdown?

The Eclipse App is a high-fidelity astronomical tool engineered for observers who demand absolute accuracy as well as beginners who need a guide through the exceptional experience of their first total solar eclipse.

Powered by the latest 3D computational models developed by the Besselian Elements Team, this App provides accurate sub-second eclipse contact timings using lunar limb profile corrections. 

Whether you are a professional researcher, an astrophotographer, or a dedicated eclipse chaser, this app provides the rigorous data necessary for a successful expedition, from interactive map useful for planning, to simulating the countdown and exercise with the equipment, and for real time tracking in case you are moving in search of the right spot.

Core Features:
• Precision Timing Engine: Real-time calculations of Contact Times based on your exact GPS coordinates
• Interactive Mapping: High-resolution path-of-totality overlays including umbral limits an the center-line. The IQP method accounts for the topography on both the lunar limb and at the observer site, as well as relying on an improved value for the eclipse solar radius (959.95" ± 0.05", based on research by the Besselian Elements Team). The eclipse center-line and the northern and southern limits of the umbral shadow path also account for these three factors. Hence, these lines are not smooth lines, as in most publicly-available eclipse maps, but are noticeably jagged. Two lines are presented at each path limit corresponding to two values of the eclipse solar radius (959.90" and 960.00") in order to display a region of uncertainty rather than a single limit line.
• Live Audio Synchronization: A sophisticated voice-cue system that announces critical contact phases and astronomical phenomena (e.g., shadow bands, corona visibility, and solar filtration changes), allowing you to keep your eyes on the sky or your equipment.
• List of phenomena to observe during the eclipse at every step, so that you can be reminded to watch at the right time


Designed for the Rigorous Observer:
The Eclipse App eliminates the margin of error inherent in simplified models.
Prepare for the next Great Eclipse with the most scientifically robust tool available on the App Store.

## Key features

- Precision timing engine
- Interactive mapping
- Live audio synchronization
- List of phenomena to observe
- Lunar limb profile corrections
- 3D computational models

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/eclipse-countdown/id6746715829/reviews.md

### 5/5 — Outstanding app- the most accurate eclipses calculations!

*2026-01-16*

Absolutely incredible and easy to use

## Frequently asked questions about Eclipse Countdown

### What is the price of Eclipse Countdown?

Eclipse Countdown is a paid app priced at $1.99. This one-time purchase grants access to all its features for precise solar eclipse timing and observation.

### What devices does Eclipse Countdown support?

Eclipse Countdown is available for iPhone, iPad, and iPod. It is designed to provide a high-fidelity astronomical experience across these Apple devices.

### How accurate are the eclipse timings provided by Eclipse Countdown?

Eclipse Countdown provides accurate sub-second eclipse contact timings using advanced 3D computational models and lunar limb profile corrections. The Precision Timing Engine calculates these based on your exact GPS coordinates.

### Does Eclipse Countdown offer offline functionality?

The provided description does not explicitly state whether Eclipse Countdown offers offline functionality. However, its core features like real-time calculations and GPS coordinates suggest an active internet connection may be required for full functionality.

### What is the age rating for Eclipse Countdown?

Eclipse Countdown has an age rating of 4+. This indicates it is suitable for children and adults, with content deemed appropriate for a wide audience.

### How often is Eclipse Countdown updated?

The latest version of Eclipse Countdown is 1.2, which was last updated on April 19, 2026. The app was initially released on January 14, 2026.

### Does Eclipse Countdown have ads?

No, Eclipse Countdown does not contain advertisements. As a paid application, it offers an uninterrupted user experience focused on astronomical observation.

### What kind of educational content does Eclipse Countdown offer?

Eclipse Countdown offers educational content through its precise astronomical data and guidance for observing solar eclipses. It educates users on phenomena like shadow bands and corona visibility, aiding in a deeper understanding of celestial events.

## Version history (last 5 releases)

### 1.4.2 — 2026-08-06

new: bug fix of custom events

### 1.4 — 2026-07-29

New: Weather forecast page! Check cloud cover, line-of-sight to the sun, CAPE, convection risk and forecast stability for your eclipse location, plus historical climatology when far from the event.

### 1.3 — 2026-07-23

Updated eclipse data on latest polar motion info

### 1.2 — 2026-04-19

added languages: Deutsch, Espagnol, Français, Italiano, Nederlands
Long press to select a location on the map

### 1.1 — 2026-02-15

Term and condition added in the welcome phase and in the info page

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## Related topics

[eclipse ai](https://appshunter.io/ios/topics/eclipse-ai)

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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 2026-08-29.*