Honeywell Installer Assistant vs Grant TechBox
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Honeywell Installer Assistant
This app provides installation guidance for specific heating controls, including setup, service reminders, and technical information. It offers diagrams, wiring details, and a merchant finder for Honeywell products.
- Setup guidance for heating controls
- Service reminder configuration
- Technical knowledge base
- Pictorial and wiring diagrams
- Merchant finder by location
- PDF installer and user guides
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The Honeywell Installer Assistant has been designed to help you successfully install the Sundial RF², ST9000 range and CM range heating controls your customer has requested. It has information that helps you in a number of areas: How to ensure that you can easily set up the controls so that they reflect the choices your customers has made when it comes to choosing a variety of features i.e 12 or 24 hour clock or how many timing periods they require. This App gives you easy menu choices which are then automatically translated into information on what parameters you need to change within the Installer Set Up area. This information can then be emailed to you and your customer for future reference An area that explains how you can set up a service reminder. You can then email the details that you have set to yourself and your customer for future reference A knowledge base that contains the basic technical information you need to install the Sundial RF², ST9000 range and CM range of products you have chosen. This includes: A pictorial overview of the controls and the functions of each button Schematic diagrams Wiring diagrams Replacement wiring information Advice on binding and re-binding the wireless components A commissioning checklist and a completion checklist PDF Installer and User Guides Advice on positioning the units and how to carry out signal strength tests A Find a merchant feature that is searchable by postcode or current location. The merchants listed on this feature have a wide range of Honeywell products always in stock A link to the Honeywell UK website for further information.
Grant TechBox
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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
Screenshots
Verdict
The clearest difference is iOS requirement: Honeywell Installer Assistant at 6.0 against Grant TechBox's 15.0. On price, update cadence, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Honeywell Installer Assistant ships an update every 6 months, Grant TechBox every 11 months. The most recent releases landed on October 5, 2026 and October 4, 2026 respectively.
| Parameter | Honeywell Installer Assistant | Grant TechBox |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| Update frequency | Every 6 months — better | Every 11 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 6.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 16 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | HH Global Interactive Ltd | GRANT ENGINEERING UK LTD |
In-app purchases
Honeywell Installer Assistant
No in-app purchases
Grant TechBox
No in-app purchases
Questions
Is Honeywell Installer Assistant free?
Is Grant TechBox free?
Do Honeywell Installer Assistant or Grant TechBox have ads?
Which is updated more often, Honeywell Installer Assistant or Grant TechBox?
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