Screenshots
See it in action
Six precision calculators, a digital spirit level, and photo-based site documentation with PDF reports. Works completely offline.
Set a base point and calculate Reduced Levels from staff readings using the Height of Instrument method. Save points, search your log, and recalculate the lot when your base changes.
Convert instantly between slope ratio, percentage and degrees. Calculate run and rise distances for any gradient. Live-sync fields update as you type.
Solve right triangles by entering any two values — sides or angles. See the result drawn in real time with colour-coded sides. Perfect for setting out square corners.
A bubble level that switches automatically between surface mode (phone flat) and edge mode (phone upright). Set your tolerance, lock readings, calibrate to your device.
Calculate volumes for slabs, columns, footings, beams and stairs. Add a wastage factor, toggle pump washout, save calculations and share them with your team.
Capture progress photos and track issues with status, category and priority. Generate date-ranged PDF reports for clients with cover pages and before/after shots.
Every tool runs without a network connection. Useful in basements, tunnels, and remote sites where you actually need it.
All photos, points and calculations stay on your device. Nothing is uploaded. No analytics or tracking.
Switch units globally in Settings. Concrete volumes available in m³, yd³ or ft³.
No account, no subscription, no in-app ads. Install it and use it.
Designed to work in portrait and landscape. The home screen adapts so every tool stays one tap away.
Concrete calcs, RL points and PDF site reports share through your phone's normal share sheet — email, SMS, cloud drive, whatever you use.
Free on Google Play. App Store version coming soon.