--- title: Get the Koyda Tools App: Free Steel Calculators and Guides, Offline | Koyda url: https://www.koyda.com/app/ description: Install Koyda's free tools app on iPhone, Android or desktop: steel weight calculator, Quote Builder, beam span checker, section tables, RAL finder and guides, on your home screen and working offline. No app store, no account. last_modified: 2026-10-11 publisher: Koyda Ltd, Units 27–29 Jesmor Farm, St Piers Lane, Lingfield, Surrey RH7 6PN. 07753 213617, joe@koyda.com --- Free · Works offline # Get the Koyda tools app Koyda's free steel calculators, Quote Builder, section tables and guides on your home screen. Open them in one tap and use them on site, even without signal. Install the app → [Open the toolkit →](https://www.koyda.com/quick-tools/?source=app) On iPhone, Android or a computer: the steps for your device are below. * **Works offline**Tools, section tables and guides are saved on the device, so they open on site without signal. * **One tap**Opens straight to the toolkit from your home screen, without the browser bars. * **Stays up to date**Updates itself in the background when you open it with signal. * **Free, no account**Nothing to pay and no sign-up. No app store needed. On a computer? Scan with your phone's camera to open **koyda.com/app**. [Download the QR code (SVG)](https://www.koyda.com/app/koyda-app-qr.svg) ## How to install It takes a few seconds and needs no app store. Pick your device: ### iPhone and iPad Safari Your device 1. Open **www.koyda.com/app** in Safari. 2. Tap **Share** . On iOS 26, tap **•••** next to the address bar first, then **Share**. 3. Scroll down and tap **Add to Home Screen**. Not in the list? Tap **Edit Actions** at the bottom and add it. 4. Leave **Open as Web App** on, then tap **Add**. 5. Open **Koyda** from your Home Screen. ### Android Chrome Your device 1. Open **www.koyda.com/app** in Chrome. 2. Tap **Install the app** above, or the **Install** banner if Chrome shows one. 3. No banner? Tap the menu **⋮**, then **Add to Home screen**, then **Install** (some versions show **Install app** straight away). 4. Confirm with **Install**. Koyda appears on your home screen and in your app list. ### Computer Chrome or Edge Your device 1. Open **www.koyda.com/app** in Chrome or Edge. 2. Click **Install the app** above, or the install icon at the right of the address bar. 3. Chrome menu: **⋮** → **Cast, save and share** → **Install page as app**. 4. Edge menu: **···** → **Apps** → **Install this site as an app**. 5. Koyda opens in its own window and is added to your apps. Other browsers: open this page in Safari on iPhone or iPad, or in Chrome on Android, then follow the steps above. ## What's in the app 29 tools and guides, grouped the same way as in the app. Tap any of them to try it in your browser first. ### Steel and sections * [Steel weight calculator](https://www.koyda.com/steel-weight-calculator/) * [Steel section tables](https://www.koyda.com/steel-section-tables/) * [Beam span checker](https://www.koyda.com/beam-span-checker/) * [Lintel and padstone helper](https://www.koyda.com/lintel-and-padstone-helper/) * [Plate, flat bar and gauges](https://www.koyda.com/guides/plate-and-flat-bar-weights/) * [S275 vs S355, and RSJ vs UB](https://www.koyda.com/guides/s275-vs-s355-steel-grades/) ### Quoting and ordering * [Steel Quote Builder](https://www.koyda.com/steel-quote-builder/) * [Delivery and lifting check](https://www.koyda.com/steel-delivery-check/) * [Email drawings](https://www.koyda.com/contact-us/) ### Finishes and colour * [Paint and galvanising area](https://www.koyda.com/steel-paint-area-calculator/) * [RAL colour finder](https://www.koyda.com/guides/ral-colour-chart/#chart) * [Galvanising, powder coating and duplex](https://www.koyda.com/guides/galvanising-powder-coating-duplex/) * [Intumescent paint and fire protection](https://www.koyda.com/guides/intumescent-paint-fire-protection/) ### Welding and fixings * [Weld finder](https://www.koyda.com/guides/welding-quick-guide/#finder) * [Interactive Welding Guide](https://www.koyda.com/guides/welding-quick-guide/) * [Welding symbols (ISO 2553)](https://www.koyda.com/guides/welding-symbols/) * [Bolt and fixing guide](https://www.koyda.com/bolt-and-fixing-guide/) * [Bolt sizes, grades and holes](https://www.koyda.com/guides/bolt-sizes-grades-and-holes/) * [Glass balustrade thickness and fixing](https://www.koyda.com/guides/glass-balustrade-thickness-and-fixing/) * [BS EN 1090 execution classes](https://www.koyda.com/guides/bs-en-1090-execution-classes/) ### Site and safety * [Handrail and balustrade regulations](https://www.koyda.com/guides/handrail-and-balustrade-regulations/) * [Balustrade heights and loads](https://www.koyda.com/guides/balustrade-heights-and-loads/) * [Stair regulations](https://www.koyda.com/guides/stair-regulations/) * [Stair rise and going calculator](https://www.koyda.com/guides/stair-regulations/#calculator) * [Automated gate safety](https://www.koyda.com/guides/automated-gate-safety/) * [Gateway 2 for metalwork](https://www.koyda.com/guides/gateway-2-metalwork-packages/) * [Glass balustrade specification](https://www.koyda.com/guides/glass-balustrade-specification/) * [Rooftop plant screens](https://www.koyda.com/guides/plant-screens-specification/) ### Reference * [A–Z glossary](https://www.koyda.com/guides/glossary/) Quick answer The Koyda tools app is a free web app from Koyda Ltd that puts a steel weight calculator, a Steel Quote Builder, a beam span checker, a lintel and padstone helper, a paint and galvanising area calculator, a bolt and fixing guide, a delivery and lifting check, UK steel section tables, a RAL colour finder, a weld finder and Koyda's technical guides on a phone's home screen. It installs from www.koyda.com/app in Safari, Chrome or Edge, needs no app store or account, and works offline once opened. Cite this: Koyda Ltd, “Koyda tools app”, https://www.koyda.com/app/, reviewed 10 October 2026. ## Frequently asked questions Is the Koyda app free? Yes. The tools and guides are free to use, with no account or sign-up. Do I need the App Store or Google Play? No. It installs straight from this page in Safari, Chrome or Edge, as a web app. It takes a few seconds and very little storage. Does it work without signal? Yes, once the app has been opened with a connection: the calculators, Quote Builder, section tables (with CSV downloads) and guides are saved on the device. How does it update? It checks for a new version when you open it with signal and updates itself. If you are part-way through a quote it waits and offers a refresh instead. Where is my data kept? Quotes and saved entries stay on your device. Nothing you type is sent to Koyda unless you choose to email it. How do I remove it? Like any app: press and hold the Koyda icon and remove it, or uninstall it from your browser's apps list on a computer.