# Walter eLibrary vs PenThai

The clearest difference is update cadence: Walter eLibrary at every 11 months against PenThai's every 40 months. Walter eLibrary also leads on iOS requirement (12.4 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Walter eLibrary ships an update every 11 months, PenThai every 40 months. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Walter eLibrary | PenThai |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (45 ratings)](https://appshunter.io/ios/app/walter-elibrary/id515262824/reviews)** | — |
| Number of ratings | **45** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 11 months** | Every 40 months |
| Monetization | Free | — |
| Size | 45 MB | 40 MB |
| Requires iOS | **12.4** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Walter-AG](https://appshunter.io/developer/423564215) | [Penthai](https://appshunter.io/developer/1619098354) |

## What reviewers say

### Walter eLibrary

[App page](https://appshunter.io/ios/app/walter-elibrary/id515262824)

Access a vast digital catalog of industrial tools and print media from a leading global brand. Browse, search, and organize product information offline, and easily transfer selections to an online shop. Available in 17 languages for convenient access anytime, anywhere.

**Highlights:** Digital catalog access, Global search functionality, Offline browsing, Bookmark and organize content, Shopping cart transfer, Multi-language support

**Features:** macOS Compatibility

**In-app purchases:** none


### PenThai

[App page](https://appshunter.io/ios/app/penthai/id1619098352)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Walter eLibrary free?

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

### Is PenThai free?

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

### Do Walter eLibrary or PenThai have ads?

Neither Walter eLibrary nor PenThai shows ads.

### Which is updated more often, Walter eLibrary or PenThai?

Walter eLibrary ships an update every 11 months, and PenThai every 40 months. Most recently, Walter eLibrary was updated on November 1, 2026 and PenThai on November 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.*