# DAIG Bookshelf vs Cold Weather Ops

The clearest difference is rating: Cold Weather Ops at 5.0 against DAIG Bookshelf's 3.3. Cold Weather Ops also leads on review sentiment (33% vs 25%). DAIG Bookshelf's advantage is in-app purchases (none vs 1) and update cadence (every 5 weeks vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. Cold Weather Ops sells 1 in-app purchase, starting at $2.99 per year. DAIG Bookshelf asks for nothing beyond the download.

Cold Weather Ops holds the better App Store score, 5.0 against 3.3. That said, the two scores are not equally well evidenced: DAIG Bookshelf has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 25% of DAIG Bookshelf's written reviews are positive against 33% of Cold Weather Ops's.

DAIG Bookshelf ships an update every 5 weeks, Cold Weather Ops every 3 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | DAIG Bookshelf | Cold Weather Ops |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (7 ratings)](https://appshunter.io/ios/app/daig-bookshelf/id1147298600/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cold-weather-ops/id1611074825/reviews)** |
| Number of ratings | **7** | 1 |
| Positive reviews | 25.0% of reviews | **33.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Monetization | **Free** | Subscription |
| Size | 402 MB | 10 MB |
| Requires iOS | **8.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TRADOC Mobile](https://appshunter.io/developer/960437358) | [Adrian Patterson](https://appshunter.io/developer/1562299789) |

## What reviewers say

### DAIG Bookshelf

[App page](https://appshunter.io/ios/app/daig-bookshelf/id1147298600)

Access a local library of commonly used, publicly available Army Inspector General publications. This app is designed for offline use, saving you time and providing essential documents when disconnected.

**Highlights:** Local copy of publications, Publicly available IG documents, Time-saving access, Disconnected use, Reference material

**Features:** macOS Compatibility

**In-app purchases:** none


### Cold Weather Ops

[App page](https://appshunter.io/ios/app/cold-weather-ops/id1611074825)

Provides pilots with quick access to critical flight information, including snowfall intensity, holdover times, runway conditions, and altimeter corrections. Simplifies complex calculations and reduces the need to consult extensive documentation.

**Highlights:** Snowfall intensity calculations, Anti-icing holdover time access, Runway condition information, Altimeter corrections for cold conditions, Holdover time expiration timer, Runway cleared width calculator

**Features:** Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| App access | $2.99 | per year |


## Frequently asked questions

### Is DAIG Bookshelf free?

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

### Is Cold Weather Ops free?

Cold Weather Ops is free to download, with in-app purchases available.

### Which has better reviews, DAIG Bookshelf or Cold Weather Ops?

Cold Weather Ops is rated higher. DAIG Bookshelf averages 3.3 out of 5 from 7 ratings, while Cold Weather Ops averages 5.0 from 1 ratings.

### Do DAIG Bookshelf or Cold Weather Ops have ads?

Neither DAIG Bookshelf nor Cold Weather Ops shows ads.

### Which is updated more often, DAIG Bookshelf or Cold Weather Ops?

DAIG Bookshelf ships an update every 5 weeks, and Cold Weather Ops every 3 months. Most recently, DAIG Bookshelf was updated on November 2, 2026 and Cold Weather Ops on November 3, 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.*