Draw what is there.
Set your datum, enter site measurements and build the outline. Add holes, curves and the details that matter.
ExploreYOUR SITE. EVERY DETAIL.
Measure.
Draw. Verify.
From the first measurement to the final handover. Bring your drawings, site checks and job documents together.
On your phone. On your tablet. On the job.
See what you can do REAL MEASUREMENTS. CLEARER CHECKS.
Check before you leave.Compare drawing dimensions on site.
MADE FOR THE WORKSurveyingFabricationInstallationSite teams
FROM SITE TO HANDOVER
Keep the detail.
Keep the job moving.
Record your measurements once, build the drawing and check it against the real opening before preparing the next stage.
GRAND CALCULATE · NEW IN 1.2
A little less maths.
A lot more doing.
Two practical calculators, free to use in the app. Get the result on site; share or print it with Pro.
FREE CALCULATOR
Equal spacing. Every gap.
Calculate spindle numbers and equal clear gaps, including both ends.
FREE CALCULATORYour next cut, planned.
Plan cuts across materials, with bar quantities, saw-cut thickness and offcuts.
Set your own maximum railing gap. Cutting plans are suggestions, not a guarantee of the fewest stock lengths.
GRANDVERIFY PRO
From site
to report.
Give the next person the drawing, the checks and the context.
- PDF reportsDimensions, angles and revision details together.
- DXF drawingsTake the recorded geometry into your CAD workflow.
- Site photosCamera photos marked with the user, date and time.
- View, then sendKeep project documents together and share from the device.
INTRODUCING VERSION 1.2
More tools.
More confidence on site.
Work in your units.
Choose millimetres or inches in Settings, across the app.
More ways to draw.
Aligned, horizontal and vertical lines and measurements, plus Offset and Cut / Extend.
Learn by doing.
Follow illustrated guidance from datum setup to verification, with a Pro walkthrough for exports.
START WITH WHAT YOU NEED
Useful from the first job.
Explore the workflow for free. Add Pro when you’re ready to prepare and share the deliverables.
INCLUDED
Draw. Check. Calculate.
Get started without a Pro subscription.
- Create projects and record site measurements
- Draw and verify openings; keep drawings in the app
- Use both calculators and view their results
- Learn the workflow with the illustrated tutorial
GRANDVERIFY PRO
Take the work further.
Prepare the files the next stage needs.
- Create and export PDF reports and DXF drawings
- Prepare and share drawing reports and site photos
- Share or print calculator reports
- Follow the Pro walkthrough for document handover
Optional subscription. The app shows your local price and purchase terms before you subscribe.
A HAND WHEN YOU NEED IT
Get familiar. Get to work.
LEARN
Your first drawing
Start with the in-app tutorial and follow the job from datum to verification.
CHECKVerify an opening
Compare drawing dimensions with the measurements you take on site.
HAND OVERFrom measurements to DXF
Bring recorded geometry into the next stage of your CAD workflow.
Working on glazing? Read the opening survey guide.
TAKE GRANDVERIFY TO WORK
Your next job.
Start here.
For iPhone, iPad and Android. Start with drawings, site checks and calculators. Add Pro when you need reports and sharing.
Free to download. Optional Pro subscription for exports, sharing and printing.