# Solar Book vs ColoredMath

The clearest difference is update cadence: ColoredMath at every 6 months against Solar Book's every 14 months. Solar Book's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support 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 ships an update every 14 months, ColoredMath every 6 months. The most recent releases landed on October 19, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Solar Book | ColoredMath |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/solar-book/id1078873201/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 6 months** |
| Monetization | Free | — |
| Size | 5 MB | 8 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vixen Co.,Ltd.](https://appshunter.io/developer/536188843) | [Sven Bergmann](https://appshunter.io/developer/1062987574) |

## 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


### ColoredMath

[App page](https://appshunter.io/ios/app/coloredmath/id6475593223)

**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 ColoredMath free?

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

### Do Solar Book or ColoredMath have ads?

Neither Solar Book nor ColoredMath shows ads.

### Which is updated more often, Solar Book or ColoredMath?

Solar Book ships an update every 14 months, and ColoredMath every 6 months. Most recently, Solar Book was updated on October 19, 2026 and ColoredMath on October 14, 2026.

---

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