# Shadow Book vs Wind Reader

The clearest difference is price: Wind Reader at Free against Shadow Book's $14.99. Wind Reader also leads on rating (4.0 vs 3.3) and update cadence (weekly vs every 15 months). Shadow Book's advantage is review sentiment (33% vs 0%) and chart position (#192 vs unranked). On ratings volume, ads, in-app purchases and device support there is nothing between them.

Wind Reader is free to download; Shadow Book costs $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Wind Reader holds the better App Store score, 4.0 against 3.3. Both are backed by a comparable volume of ratings — 6 and 5 respectively. Written reviews complicate that: 33% of Shadow Book's written reviews are positive against 0% of Wind Reader's, so the app with the better star average is not the one people write more warmly about.

Shadow Book ships an update every 15 months, Wind Reader weekly. The most recent releases landed on October 7, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Shadow Book | Wind Reader |
| --- | --- | --- |
| Price | $14.99 | **Free** |
| Rating | [3.3 (6 ratings)](https://appshunter.io/ios/app/shadow-book/id1482820623/reviews) | **[4.0 (5 ratings)](https://appshunter.io/ios/app/wind-reader/id6469385660/reviews)** |
| Number of ratings | **6** | 5 |
| Positive reviews | **33.3% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Weekly** |
| Monetization | Paid | **Free** |
| Best chart rank | **#192** | — |
| Size | 26 MB | 2 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Shadow Hog Tactical and Consulting](https://appshunter.io/developer/1482820622) | [James Eagleman](https://appshunter.io/developer/1464839727) |

## What reviewers say

### Shadow Book

[App page](https://appshunter.io/ios/app/shadow-book/id1482820623)

**Currently charting:** #192 Top Paid · Sports (US App Store)

This digital data book helps responsible shooters track and maintain valuable information for various firearm types. It's designed for both professionals and sportsmen, offering essential features and more for managing round counts, maintenance, and range sessions.

**Highlights:** Track round count, Log maintenance history, Record range sessions, Supports rifles, shotguns, pistols, bows, Digital data book for shooters

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Wind Reader

[App page](https://appshunter.io/ios/app/wind-reader/id6469385660)

This application calculates real-time wind speed for long-range shooting using the Eagleman Technique. It leverages your phone's inclination sensor to convert mirage and rain angles into accurate wind speed measurements, a method patented in the US.

**Highlights:** Real-time wind speed calculation, Eagleman Technique implementation, Uses phone inclination sensor, Converts mirage and rain angles, Patented wind reading method

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Shadow Book free?

Shadow Book costs $14.99, with no in-app purchases.

### Is Wind Reader free?

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

### Which has better reviews, Shadow Book or Wind Reader?

Wind Reader is rated higher. Shadow Book averages 3.3 out of 5 from 6 ratings, while Wind Reader averages 4.0 from 5 ratings.

### Do Shadow Book or Wind Reader have ads?

Neither Shadow Book nor Wind Reader shows ads.

### Which is updated more often, Shadow Book or Wind Reader?

Shadow Book ships an update every 15 months, and Wind Reader weekly. Most recently, Shadow Book was updated on October 7, 2026 and Wind Reader on September 23, 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.*