# Cry Wolf vs Solar Book

The clearest difference is in-app purchases: Solar Book at none against Cry Wolf's 1. Solar Book also leads on update cadence (every 14 months vs every 46 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Cry Wolf sells 1 one-off in-app purchase. Solar Book asks for nothing beyond the download.

Cry Wolf ships an update every 46 months, Solar Book every 14 months. The most recent releases landed on September 14, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Cry Wolf | Solar Book |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (3 ratings)](https://appshunter.io/ios/app/solar-book/id1078873201/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 46 months | **Every 14 months** |
| Monetization | — | Free |
| Size | 4 MB | 5 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [丽东 陈](https://appshunter.io/developer/1342184783) | [Vixen Co., Ltd.](https://appshunter.io/developer/536188843) |

## What reviewers say

### Cry Wolf

[App page](https://appshunter.io/ios/app/cry-wolf-by-readpad/id673422665)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock all the content | $0.99 | one-time |


### 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


## Frequently asked questions

### Is Cry Wolf free?

Cry Wolf is free to download, with in-app purchases available.

### Is Solar Book free?

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

### Do Cry Wolf or Solar Book have ads?

Neither Cry Wolf nor Solar Book shows ads.

### Which is updated more often, Cry Wolf or Solar Book?

Cry Wolf ships an update every 46 months, and Solar Book every 14 months. Most recently, Cry Wolf was updated on September 14, 2026 and Solar Book on June 1, 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.*