How it works
Upload your drawings
PDF plans, structural calcs and spec sheets — or just a photo. Add any notes on the scope.
Check the scope
The AI reads the drawings and lists the items. You confirm the dimensions and quantities before anything is priced.
Get your estimate
Priced against a UK rate book with your margins applied. Edit any line, then share it as a PDF.
See it in action
The AI reads. It doesn't guess the price.
QSApp uses AI (Anthropic's Claude) to do the one job it's genuinely good at: reading your drawings and working out what's involved. Your plans and scope notes are sent to Anthropic for that analysis — and nothing else.
The pricing is not AI. Once the scope is confirmed, every item is priced deterministically from a fixed UK rate book, adjusted for your region and your margins. That means the same job priced twice gives the same number — no invented rates, no drifting totals.
You see the full item list before anything is priced, and you can change any quantity or rate afterwards. Details of what's shared and how are in our Privacy Policy.
Built for the way you actually work
- UK rate book built in — supply-and-fix rates covering groundworks, structure, roofing, finishes, plumbing, electrics and externals.
- Regional pricing — rates adjust from the site postcode, from Greater London down to the North East.
- Your margins, not ours — set your own material and profit margins in your business profile.
- You stay in control — every quantity and price is editable before the estimate goes out.
- Professional PDF estimates — branded with your details, ready to send to the client.
- Everything saved — projects stored to your account and available across your devices.
Pricing
Free trial
Try it on a real job before you pay anything.
Credit pack
Pay as you go. Credits never expire — use them whenever the work comes in.
Annual
Best value if you're estimating regularly. Fair-use guideline of 25 estimates a month.
Estimates are indicative. QSApp is a fast, consistent starting point — not a certified quantity surveying assessment or a formal quotation. Always check the figures against the job before quoting a client. See our Terms.
Be first to know
QSApp is in final testing ahead of launch. Drop us a line and we'll let you know the moment it's on the App Store — or if you'd like to try it early.
Already using QSApp? Head to support — we normally reply within 2 working days.