# Technical Pocket Guide (STT) vs DAIG Bookshelf

The clearest difference is rating: Technical Pocket Guide (STT) at 5.0 against DAIG Bookshelf's 3.3. Technical Pocket Guide (STT) also leads on review sentiment (55% vs 25%). DAIG Bookshelf's advantage is update cadence (every 5 weeks vs every 9 months) and ratings volume (7 vs 1). 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.

Technical Pocket Guide (STT) 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: 55% of Technical Pocket Guide (STT)'s written reviews are positive against 25% of DAIG Bookshelf's.

Technical Pocket Guide (STT) ships an update every 9 months, DAIG Bookshelf every 5 weeks. The most recent releases landed on September 21, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Technical Pocket Guide (STT) | DAIG Bookshelf |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/technical-pocket-guide-stt/id426818450/reviews)** | [3.3 (7 ratings)](https://appshunter.io/ios/app/daig-bookshelf/id1147298600/reviews) |
| Number of ratings | 1 | **7** |
| Positive reviews | **55.0% of reviews** | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 5 weeks** |
| Monetization | Free | Free |
| Size | 55 MB | 402 MB |
| Requires iOS | 17.0 | **8.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Schaeffler Technologies GmbH & Co. KG](https://appshunter.io/developer/426470435) | [TRADOC Mobile](https://appshunter.io/developer/960437358) |

## What reviewers say

### Technical Pocket Guide (STT)

[App page](https://appshunter.io/ios/app/technical-pocket-guide-stt/id426818450)

This mobile reference guide offers essential technical knowledge for students, engineers, and technicians. It features a comprehensive search function, customizable bookmarks, and offline access, making it a convenient tool for daily work.

**Highlights:** Mobile technical reference, Full-text search, Table of contents with links, Customizable bookmarks and notes, Email content sharing, Offline functionality

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Technical Pocket Guide (STT) free?

Technical Pocket Guide (STT) is free to download, with no in-app purchases.

### Is DAIG Bookshelf free?

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

### Which has better reviews, Technical Pocket Guide (STT) or DAIG Bookshelf?

Technical Pocket Guide (STT) is rated higher. Technical Pocket Guide (STT) averages 5.0 out of 5 from 1 ratings, while DAIG Bookshelf averages 3.3 from 7 ratings.

### Do Technical Pocket Guide (STT) or DAIG Bookshelf have ads?

Neither Technical Pocket Guide (STT) nor DAIG Bookshelf shows ads.

### Which is updated more often, Technical Pocket Guide (STT) or DAIG Bookshelf?

Technical Pocket Guide (STT) ships an update every 9 months, and DAIG Bookshelf every 5 weeks. Most recently, Technical Pocket Guide (STT) was updated on September 21, 2026 and DAIG Bookshelf 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.*