# Solar Book

> Solar eclipse timing and visualization app based on user location. (iPhone/iPad app by Vixen Co., Ltd..)

- Source: https://appshunter.io/ios/app/solar-book/id1078873201 (this page in markdown: same URL + `.md`)
- Developer: [Vixen Co., Ltd.](https://appshunter.io/developer/536188843)
- Category: Education, Lifestyle
- Price: Free
- Rating: 4.70/5 from 3 App Store ratings
- Age rating: 4+
- Requires: iOS 12.0 · 5 MB
- Languages: American English, Japanese
- Released: 2016-03-03
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/solar-book/id1078873201/reviews.md

## What is Solar Book?

The Solar Book is an app for smart-phones and tablets for a solar eclipse.  The Solar Book shows at what time each portion of the Sun is covered by the Moon during a solar eclipse. 

The beginning time of a solar eclipse, time of the maximum phase of the solar eclipse and the ending time of the solar eclipse will change depending on the location of your observing area.  The Solar Book will show you the eclipse phases at your location.  Your location for observing the solar eclipse can be designated with use of the location setup dialog box.  This allows you to plan in advance the progression of the eclipse. 

Sequential images of the solar eclipse will be displayed in the appropriate order when you tap on the eclipse thumbnail images icon on the lower right of the screen. 

Solar eclipses can be displayed by designating the date of a solar eclipse in the past or the future if you cannot find it in a list of the selection.  

The Solar Book will show you a star chart of the sky at your place of observation if the solar eclipse is not selected.

## Key features

- Solar eclipse phase timing
- Location-based eclipse calculations
- Sequential eclipse image display
- Star chart visualization
- Past and future eclipse planning


## Frequently asked questions about Solar Book

### What is Solar Book?

Solar Book is a free educational app for smartphones and tablets that provides detailed information about solar eclipses. It calculates eclipse timings based on your specific location and offers visual aids like sequential images and star charts.

### How does Solar Book determine eclipse times?

Solar Book uses your designated location to calculate the precise beginning, maximum phase, and ending times of a solar eclipse. You can set your observing area through a location setup dialog box.

### Can I see images of the eclipse with Solar Book?

Yes, Solar Book displays sequential images of the solar eclipse in the correct order. You can access these by tapping on the eclipse thumbnail images icon.

### Does Solar Book require an internet connection to work?

The provided data does not specify whether an internet connection is required for Solar Book. However, location-based calculations often benefit from or require connectivity.

### What devices is Solar Book compatible with?

Solar Book is available for iPhones, iPads, and iPods. It is designed for smart-phones and tablets.

### How often is Solar Book updated?

The latest version of Solar Book is 2.1.1, last updated on January 27, 2026. This indicates a developer commitment to maintaining and improving the application.

### What is the age rating for Solar Book?

Solar Book has an age rating of 4+, making it suitable for a wide range of users interested in learning about solar eclipses.

### Does Solar Book have ads?

No, Solar Book does not contain advertisements. It is a completely free application without any ad interruptions.

## Version history (last 5 releases)

### 2.1.1 — 2026-01-27

Some bugs have been corrected.

### 2.1 — 2024-12-06

The data on solar eclipses up to the year 2040 have been added.
Eclipse views by thumbnail display become available.

### 2.0.1 — 2021-06-01

The indication on the screen is disturbed with certain models of iPhones has been corrected.

### 2.0 — 2018-12-10

Corrections have been made for some program bugs.

### 1.2.3 — 2017-07-07

The URLs of our support page were changed and some corrections have been made to mend inconvenience.

## Apps similar to Solar Book

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Cosmic Atlas](https://appshunter.io/ios/app/cosmic-atlas/id1305522465) | 3.7 (63) | Free | Education |
| [Solar Coaster](https://appshunter.io/ios/app/solar-coaster/id1218422388) | 5.0 (2) | Free | Education |
| [Moon phases assist](https://appshunter.io/ios/app/moon-phases-assist/id1070111214) | 3.5 (2) | Free | Education |
| [Real Solar System](https://appshunter.io/ios/app/real-solar-system/id6475644962) | — | Free | Education |
| [GlobeViewer Moon](https://appshunter.io/ios/app/globeviewer-moon/id1521271990) | 2.0 (3) | Free | Education |
| [Intergalactic Solar System](https://appshunter.io/ios/app/intergalactic-solar-system/id1505399254) | 4.0 (25) | Free | Education |

## More apps by Vixen Co., Ltd.

- [Comet Book](https://appshunter.io/ios/app/comet-book/id604782335)
- [Moon Book](https://appshunter.io/ios/app/moon-book/id906552724)
- [PF-L Assist](https://appshunter.io/ios/app/pf-l-assist/id940306488)
- [NightVision Light](https://appshunter.io/ios/app/nightvision-light/id1081761997)
- [Mars Book](https://appshunter.io/ios/app/mars-book/id1342509724)

All apps by Vixen Co., Ltd.: https://appshunter.io/developer/536188843

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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.*