Comparison

Grant TechBox vs PECO Modellers' Library

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Grant TechBox

Features
Read full description

Get access to Grant technical manuals anywhere, anytime with the Grant TechBox mobile support app for iPhone and iPad devices. Designed for heating engineers and installers, the TechBox makes finding installation manuals and technical resources quick and easy, whether you are online or offline. From Grant oil fired boilers, flues and accessories through to air source heat pumps and other renewable heating products, this comprehensive technical library has it all. Find current and historic manuals in a few simple taps of the screen. • Download the Grant product categories most relevant to you and your business • Find documents with ease via user-friendly navigation • Save favourites for documents you regularly use • Toggle between current and archive to access historic manuals • Use offline even when you have no WiFi or internet connection

About

PECO Modellers' Library

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
Read full description

Explore the world of model railways with PECO Publications Whether you are a beginner having fun with your first layout and seeking advice, or an experienced modeller of many years' standing and searching for new inspiration, our leading titles will help you get the very best from this fascinating hobby. ---------------------------------------------- This is a free app download. Within the app users can purchase the current issue and back issues. Subscriptions are also available within the application. A subscription will start from the latest regular issue at the time of purchase. -The subscription will renew automatically unless cancelled more than 24 hours before the end of the current period. You will be charged for renewal within 24 hours of the end of the current period, for the same duration and at the current subscription rate for the product. -You may turn off the auto-renewal of subscriptions through your Account Settings, however you are not able to cancel the current subscription during its active period. -Payment will be charged to your iTunes account at confirmation of purchase and any unused portion of a free trial period, if offered, will be forfeited when a subscription to that publication is purchased. -If a subscription offers a free trial, at the end of the trial period, you will be charged the full price of the subscription. You may cancel a subscription during its free trial period via the subscription settings on your iTunes account. This must be done 24 hours before the end of the subscription period to avoid being charged. Users can register for/ login to a pocketmags account in-app. This will protect their issues in the case of a lost device and allow browsing of purchases on multiple platforms. Existing pocketmags users can retrieve their purchases by logging into their account. We recommend loading the app for the first time in a wi-fi area so that all issue data is retrieved. If your app will not load past the splash page after a first install or an update, please delete and reinstall the app from the App Store Help and frequently asked questions can be accessed in-app and on pocketmags. If you have any problems at all please do not hesitate to contact us: help@pocketmags.com -------------------- You can find our privacy policy here: http://www.pocketmags.com/privacy.aspx You can find our terms and conditions here: http://www.pocketmags.com/terms.aspx

Screenshots

Grant TechBox4 screens
PECO Modellers' Library1 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

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.

Scorecard2 real differences · 8 level
Grant TechBox versus PECO Modellers' Library: the parameters behind the verdict, then further details
ParameterGrant TechBoxPECO Modellers' Library
PriceFreeFree
Rating—4.8 (12 ratings) — better
Positive reviews—15.4% of reviews
Number of ratings—12 — better
Update frequencyEvery 11 months — betterEvery 15 months
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.011.2 — better
Further details — not scored
Size47 MB37 MB
Age rating4+4+
DeveloperGRANT ENGINEERING UK LTDPritchard Patent Product Co. Ltd.

In-app purchases

None

Grant TechBox

No in-app purchases

17 purchases

PECO Modellers' Library

One-time17
  • Setrack N Gauge... (id:472332)$1.99
  • Track Plans for... (id:472341)$1.99
  • 60 Plans For Sm... (id:472340)$1.99
Show 14 more
  • N Gauge Track P... (id:472333)$1.99
  • PECO SETRACK N ... (id:492974)$1.99
  • OO Setrack Plan... (id:472334)$2.99
  • PM-202 A Compen... (id:472330)$3.99
  • Peco Catalogue (pp:988957)$3.99
  • do not use (id:769268)$4.99
  • PM-200 Your Gui... (id:769277)$4.99
  • Your Guide to N... (id:769275)$4.99
  • PM-204 Your Gui... (id:769274)$4.99
  • Your Guide to 0... (id:769276)$4.99
  • PM-201 Your Gui... (id:769272)$4.99
  • Your Guide to O... (id:769280)$4.99
  • Your Guide to M... (id:769279)$4.99
  • Your Guide to M... (id:769278)$4.99

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.

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