# Grant TechBox vs PECO Modellers' Library

The clearest difference is in-app purchases: Grant TechBox at none against PECO Modellers' Library's 17. PECO Modellers' Library's advantage is iOS requirement (11.2 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. PECO Modellers' Library sells 17 one-off in-app purchases. Grant TechBox asks for nothing beyond the download.

Grant TechBox ships an update every 11 months, PECO Modellers' Library every 15 months. The most recent releases landed on October 4, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Grant TechBox | PECO Modellers' Library |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (12 ratings)](https://appshunter.io/ios/app/peco-modellers-library/id1070154983/reviews)** |
| Number of ratings | — | **12** |
| Positive reviews | — | 15.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 11 months** | Every 15 months |
| Monetization | — | Free with in-app purchases |
| Size | 47 MB | 37 MB |
| Requires iOS | 15.0 | **11.2** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [GRANT ENGINEERING UK LTD](https://appshunter.io/developer/1042420331) | [Pritchard Patent Product Co. Ltd.](https://appshunter.io/developer/1460257095) |

## What reviewers say

### Grant TechBox

[App page](https://appshunter.io/ios/app/grant-techbox/id1042420332)

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

**In-app purchases:** none


### PECO Modellers' Library

[App page](https://appshunter.io/ios/app/peco-modellers-library/id1070154983)

This app provides a digital library of model railway publications for enthusiasts of all levels. Explore advice, inspiration, and detailed guides to enhance your hobby. Purchase individual issues or subscribe for ongoing access.

**Highlights:** Model railway publications, Advice for beginners, Inspiration for experienced modelers, Purchase individual issues, Subscription options, Cross-platform access with account login

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

**In-app purchases (17)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Setrack N Gauge... (id:472332) | $1.99 | one-time |
| Track Plans for... (id:472341) | $1.99 | one-time |
| 60 Plans For Sm... (id:472340) | $1.99 | one-time |
| N Gauge Track P... (id:472333) | $1.99 | one-time |
| PECO SETRACK N ... (id:492974) | $1.99 | one-time |
| OO Setrack Plan... (id:472334) | $2.99 | one-time |
| PM-202 A Compen... (id:472330) | $3.99 | one-time |
| Peco Catalogue (pp:988957) | $3.99 | one-time |
| do not use (id:769268) | $4.99 | one-time |
| PM-200 Your Gui... (id:769277) | $4.99 | one-time |
| Your Guide to N... (id:769275) | $4.99 | one-time |
| PM-204 Your Gui... (id:769274) | $4.99 | one-time |
| Your Guide to 0... (id:769276) | $4.99 | one-time |
| PM-201 Your Gui... (id:769272) | $4.99 | one-time |
| Your Guide to O... (id:769280) | $4.99 | one-time |
| Your Guide to M... (id:769279) | $4.99 | one-time |
| Your Guide to M... (id:769278) | $4.99 | one-time |


## Frequently asked questions

### Is Grant TechBox free?

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

### Is PECO Modellers' Library free?

PECO Modellers' Library is free to download, with in-app purchases available.

### Do Grant TechBox or PECO Modellers' Library have ads?

Neither Grant TechBox nor PECO Modellers' Library shows ads.

### Which is updated more often, Grant TechBox or PECO Modellers' Library?

Grant TechBox ships an update every 11 months, and PECO Modellers' Library every 15 months. Most recently, Grant TechBox was updated on October 4, 2026 and PECO Modellers' Library on October 11, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*