# Solar Book vs Eclipse Explorer

The clearest difference is rating: Solar Book at 4.7 against Eclipse Explorer's 4.0. Solar Book also leads on ratings volume (3 vs 1). Eclipse Explorer's advantage is update cadence (every 5 days vs every 14 months) and iOS requirement (10.3 vs 12.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Solar Book holds the better App Store score, 4.7 against 4.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

Solar Book ships an update every 14 months, Eclipse Explorer every 5 days. The most recent releases landed on October 3, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Solar Book | Eclipse Explorer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/solar-book/id1078873201/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/eclipse-explorer/id1252295023/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 5 days** |
| Monetization | Free | Free |
| Size | 5 MB | 47 MB |
| Requires iOS | 12.0 | **10.3** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vixen Co.,Ltd.](https://appshunter.io/developer/536188843) | [Joshua Berlin](https://appshunter.io/developer/1252295022) |

## What reviewers say

### Solar Book

[App page](https://appshunter.io/ios/app/solar-book/id1078873201)

This app provides detailed information about solar eclipses, including timings for different phases based on your location. It allows you to view sequential images and star charts for planning and observation.

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

**In-app purchases:** none


### Eclipse Explorer

[App page](https://appshunter.io/ios/app/eclipse-explorer/id1252295023)

Explore solar eclipses with detailed circumstances for your location between 1900 and 2100. Features countdown timers, Sun and Moon simulations, and real-time shadow mapping. Overlay weather data to avoid clouds during totality.

**Highlights:** Location-based eclipse circumstances (1900-2100), Countdown timers to eclipse events, Sun and Moon position simulation, Real-time Moon shadow mapping, Satellite and radar weather overlays, Offline map functionality

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Solar Book free?

Solar Book is free to download, with no in-app purchases.

### Is Eclipse Explorer free?

Eclipse Explorer is free to download, with no in-app purchases.

### Which has better reviews, Solar Book or Eclipse Explorer?

Solar Book is rated higher. Solar Book averages 4.7 out of 5 from 3 ratings, while Eclipse Explorer averages 4.0 from 1 ratings.

### Do Solar Book or Eclipse Explorer have ads?

Neither Solar Book nor Eclipse Explorer shows ads.

### Which is updated more often, Solar Book or Eclipse Explorer?

Solar Book ships an update every 14 months, and Eclipse Explorer every 5 days. Most recently, Solar Book was updated on October 3, 2026 and Eclipse Explorer on September 16, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*