Window Calculator App

The most-used window calculator app among fabricators and installers. Every window type, every material, every market — priced accurately on your phone.

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Why Put the Calculator on Your Phone?

Window pricing happens on the job, not at a desk. Four reasons the app format matters.

1

On-Site Instant Quoting

Meet a client on site, measure, configure, and quote within the visit. Average site-visit to signed deposit: 45 minutes with the app vs 3-7 days with email-later workflow. Higher close rate is the biggest financial benefit window businesses see from mobile pricing.

2

Offline Capability

No signal? No problem. The calculator runs fully offline — measure, configure, quote, and show the price. Syncs when you're back in signal. Essential for rural jobs, high-rise concrete cores, and basements where mobile data vanishes.

3

Photo-Anchored Quotes

Each window in the quote can carry a site photo. Client receives a quote where every price point is tied visually to the window they're buying — no confusion about which window is which. Particularly valuable for larger multi-window retrofits.

4

Syncs Phone ↔ Tablet ↔ Desktop

Surveyor measures on phone; estimator reviews on desktop; salesperson closes on tablet. Same job file, real-time sync across devices. The role-split model large window businesses need, without the friction of emailing survey sheets around.

Frequently Asked Questions

Is a phone too small for serious window calculation?
For site survey and initial pricing: phone is ideal — always in the installer's pocket, fast for a 5-window quote. For detailed 50-window commercial estimation: switch to tablet or desktop — same app, bigger screen, side-by-side configuration panels. Choose the right device for the task — Doorwin runs on all three.
Does it work on iPad and Android tablets?
Yes. Native iPad app (M-series chip optimised) and native Android tablet app. Layout uses the full screen — side-by-side window schedule + configuration panel + live quote — the way a tablet should be used, not just a stretched phone interface.
Does the app cost money?
Free to download and use for single-user work including commercial use. Team plans for multi-user businesses (5+ users) include sync, role permissions, and premium integrations (CRM, accounting, ERP) at a monthly per-seat fee — competitively priced against window-specific competitors.
How does it compare to Excel?
Excel is a terrible window calculator — static formulas don't adapt to profile system changes, no image output, no mobile workflow, no CRM integration, no supplier price-list import. Every window business we've migrated from Excel saves 5-15 hours/week in pricing admin alone — quantified from real customer measurements.

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The Only Window Calculator App You Need

Available on App Store and Google Play. Free to start. Try it on your next site visit.

App StoreGoogle Play