# DAIG Bookshelf vs CREF9

The clearest difference is review sentiment: DAIG Bookshelf at 25% against CREF9's 0%. DAIG Bookshelf also leads on update cadence (every 5 weeks vs every 6 months) and iOS requirement (8.0 vs 13.0). 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.

DAIG Bookshelf ships an update every 5 weeks, CREF9 every 6 months. The most recent releases landed on June 1, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | DAIG Bookshelf | CREF9 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (7 ratings)](https://appshunter.io/ios/app/daig-bookshelf/id1147298600/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | **25.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 6 months |
| Monetization | Free | Free |
| Size | 402 MB | 18 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | +17 |
| Developer | [TRADOC Mobile](https://appshunter.io/developer/960437358) | [SPIDERWARE CONSULTORIA EM INFORMATICA LTDA](https://appshunter.io/developer/1473963182) |

## 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


### CREF9

[App page](https://appshunter.io/ios/app/cref9-pr/id1639017722)

This app provides news from the council and allows users to consult and update their registration data. It also facilitates the payment of council annuities.

**Highlights:** Council news updates, Consult registration data, Update registration data, Pay council annuities, Manage personal information

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

**In-app purchases:** none


## Frequently asked questions

### Is DAIG Bookshelf free?

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

### Is CREF9 free?

CREF9 is free to download, with no in-app purchases.

### Do DAIG Bookshelf or CREF9 have ads?

Neither DAIG Bookshelf nor CREF9 shows ads.

### Which is updated more often, DAIG Bookshelf or CREF9?

DAIG Bookshelf ships an update every 5 weeks, and CREF9 every 6 months. Most recently, DAIG Bookshelf was updated on June 1, 2026 and CREF9 on September 7, 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.*