Run the job.
Timesheets, daily reports and invoices
from the phones your crew already carries.
Office view The whole company on one screen
Every crew, every job,
live from the site.
For contractors and trade crews
Not the
paperwork.
Constra puts GPS-verified timesheets, daily reports, safety logs, change orders and invoices in one app, on the phones your crew already carries.
- No credit card
- Android, iPhone & web
- 15 languages
Tue, Sep 29 · Dundas St. Reno
Morning, Marco
4:12:08
Today's crew · 6 on site
Replaces
- Paper timesheets
- The crew group chat
- A shoebox of receipts
- The invoice spreadsheet
- Three other apps
How it works
One day on site,
start to invoice.
Crew clocks in
A selfie and GPS fix are checked against the site's geofence. Punches from the truck stop or the couch get flagged for review.
38 m from site · inside 500 mHazard logged
Open trench, no barricade. Photo, severity and location go into the safety log before anyone forgets.
Near miss · MediumChange order raised
The client wants pot lights in the hallway. Price it, send it, and the project budget updates when they approve.
CO-07 · +$1,180Daily report done
Hours, weather, completed tasks and site photos are already in the report. Review it and share it.
6 crew · 47.5 h · 12 photosInvoice out the door
Turn the estimate into an invoice and email a branded PDF to the client the same day the work was done.
INV-0142 · $8,420.00 · Sent
The actual app
No mock-ups.
This is the app.
A screen recording of Constra running on a phone, with a sample crew on three sample jobs. Everything here is the real interface — the same one your crew taps on site.
Who is on site, live, with the hours already totted up
Everything the site needs.
Nothing extra to buy.
All sixteen tools are included on every account. No add-ons and no per-project fees.
Crew
- GPS clock-in
- Selfie + location on every punch, per-site geofence
- Scheduling
- Assign crew by project and shift, with the 7-day forecast
- Roles
- Separate views for owners, project managers, foremen and crew
- Messages
- Project chat with photos and files, no group texts
Money
- Estimates
- Itemised quotes built on site, sent as PDFs
- Invoices
- Convert an estimate in one step, track paid and overdue
- Change orders
- Priced, approved and tracked against budget
- Payroll export
- Hours to CSV, QuickBooks or Gusto; invoices to QuickBooks Online
Site
- Daily reports
- Hours, weather, tasks and photos, compiled for you
- Safety log
- Near misses, injuries and hazards with photos
- Punch lists & RFIs
- Assigned, photographed, closed out
- Equipment & materials
- Service dates, cert expiry, deliveries, low stock
Plans & files
- Blueprints
- Upload drawings and open them on site
- Documents
- Contracts, permits and specs, versioned by project
- Photos
- Every site photo, sorted by project and day
- Morning brief
- A morning summary of crew, overdue tasks and weather risk
Live site view
Watch a whole day
land in your pocket.
Every punch, lift, photo and report shows up the moment it happens, so the office knows what the site knows. Here's one day, sped up.
Built for the field
Made for gloves, glare
and one bar of signal.
Big tap targets, a high-contrast interface and no training day. If your crew can send a text, they can clock in.
- Offline
- Clock-ins, reports and photos save on the phone and sync when signal returns.
- Geofence
- Set each site's radius on a map. 500 m by default, adjustable per project.
- 15 Languages
- Each person picks their own, from Spanish and Polish to Hindi, Arabic and Chinese.
- OT Overtime
- Daily and weekly overtime calculated from the punches, ready for payroll.
Run your numbers
What paperwork
costs your crew.
Writing up timesheets, chasing missing hours, re-typing them for payroll. Move the sliders to match your crew and see what those minutes add up to.
Your estimate: crew × minutes × 21.7 work days × wage. $26,561 a year.
Pricing
Free during launch.
Every feature, unlimited crew, no credit card. Sign up, invite your crew and run your next job on it.
- Unlimited crew and projects
- GPS + photo clock-in
- Estimates, invoices and change orders
- Daily reports and safety logs
- Payroll export (CSV, QuickBooks, Gusto)
- Morning brief and AI assistant
Questions
from the site.
Do my workers each need to sign up?
They join your company with an invite code from Settings. It takes about a minute and they only see what their role allows.
What happens when there's no signal on site?
Clock-ins and updates are saved on the phone and sync automatically when the connection comes back.
Can someone clock in from home?
Every punch records GPS and a photo. If it's outside the geofence you set for that project, it's flagged so you can review it before payroll.
Does it work on iPhone?
Android has an app on Google Play. On iPhone and computers, Constra runs in the browser and you can add it to your home screen like an app.
How do hours get into payroll?
Export hours as a CSV, a Gusto-ready CSV, a QuickBooks Desktop file or a summary to enter in QuickBooks Online, with overtime split out where you've turned it on.
What does it cost?
Constra is free during launch, with every feature included and no credit card required.
Can I take my data and leave?
Yes. Invoices, reports and timesheets export to PDF or CSV, and you can delete your account from Settings at any time.