Features How It Works Pricing FAQ
⚠ Before GrandProof
✓ After GrandProof
⚠ Risk Detected
✓ Verified
Live in Production · Founding Access Open
CAPTURE.
VERIFY.
PROVE.
Field evidence and compliance documentation
built for construction and infrastructure teams.
⟺
Scroll
↑ Evidence package submitted · 2 min ago · Scarborough, ON ✓ Report approved · 5 min ago · Site #7 · Calgary, AB 📍 GPS capture locked · 8 min ago · King & Bathurst ↑ Evidence package submitted · 11 min ago · Mississauga, ON ✓ Dispute resolved · 14 min ago · Hamilton, ON ↑ Evidence package submitted · 2 min ago · Scarborough, ON ✓ Report approved · 5 min ago · Site #7 · Calgary, AB 📍 GPS capture locked · 8 min ago · King & Bathurst ↑ Evidence package submitted · 11 min ago · Mississauga, ON ✓ Dispute resolved · 14 min ago · Hamilton, ON
The Transformation

From chaos to clarity. In every corner of the job.

⚠ Before

Paperwork chaos.
No system.

Binders, sticky notes, scattered plans. Nobody knows what was signed, what was missed, or who is accountable.

✓ After

Digital command.
Full visibility.

Real-time GPS map, digital documentation, every crew member tracked from a clean central dashboard.

⚠ Before

Dark site.
No proof.

Night shifts, muddy conditions, no documentation. Disputes happen and nobody has evidence to defend the crew.

✓ After

Every worker.
Every capture.

Supervisor on site with GrandProof open. Every photo GPS-locked. Every hour documented. Every dispute defensible.

100%
Tamper-proof
capture chain
2min
Evidence package
generation time
0
Disputes lost with
documented proof
24/7
Field access
on any device
Product Preview

See it in the field.
Before you commit.

Every screen built for real job site conditions — high contrast, offline-ready, field-first.

📍 GPS Locked 14:32
Capture Zone
SiteKing & Bathurst — Sector 3
WorkerJ. Morales · ID #4821
GPS43.6481° N, 79.3958° W
📄 Evidence Package Approved
Location43.6481° N, 79.3958° W
CapturedMay 26, 2026 · 14:32:07
SupervisorT. Chen · Signed ✓
Chain of custody intact · 3 photos
🛡️ Report Ready PDF
PackageKing-Bathurst-2026-05-26
Generated1 min 42 sec
Audit trailImmutable · 7 entries
Court-ready · Tamper-proof seal
Core Features

Everything your crew needs.
Nothing they don't.

Built from the ground up for field conditions — not adapted from office software.

01
📍
GPS-Stamped Evidence Capture
Every photo is locked with GPS coordinates, date, time, and crew identity. Location and timestamp cannot be altered after capture.
02
✅
Supervisor Approval Workflow
Workers submit evidence packages for supervisor review. Every action is logged with a timestamp and user identity.
03
📄
Evidence-Grade PDF Export
Generate court-ready PDF reports in under 2 minutes. Each package includes photos, GPS data, timestamps, and supervisor sign-off.
04
🛡️
Tamper-Proof Audit Trail
Every action — capture, approval, rejection, export — is recorded in an immutable audit log. Nothing can be deleted or backdated.
05
👷
FLHA & Safety Forms
Digital Field Level Hazard Assessments, vehicle inspections, and driver logs — captured, timestamped, and linked to the right worker and worksite.
06
📱
Field-First Mobile Design
High-contrast sunlight mode, offline-ready capture, and an interface built for gloves and job site conditions. Works on any device.
How It Works

From field capture
to evidence package.

Four steps. Under 2 minutes. Court-ready documentation.

01
Worker Captures
Field worker opens GrandProof, takes photos or completes forms. GPS and timestamp lock automatically.
02
Package Submitted
Worker submits evidence package for supervisor review. Notification sent instantly.
03
Supervisor Reviews
Supervisor approves or flags with notes. Every action logged with identity and timestamp.
04
Evidence Exported
PDF evidence package generated — GPS data, photos, chain of custody, sign-off. Under 2 minutes.
"
From the Field
"Before GrandProof, we were relying on photos from personal phones and hoping nobody disputed the hours. Now every capture is timestamped, GPS-locked, and approved before the crew leaves site. It changed how we document everything."
Site Supervisor · Civil Infrastructure · Scarborough, Ontario
Pricing

Founding access.
Locked-in rates.

Early customers get founding pricing — rates that never increase as long as you stay subscribed.

Starter
$29/mo CAD
Regular $49/mo
For small crews and contractors getting started with field documentation.
  • 1 organization · Up to 10 users
  • Up to 3 worksites
  • GPS-stamped evidence capture
  • Supervisor approval workflow
  • Evidence-grade PDF export
  • 14-day fit period
Professional
$79/mo CAD
Regular $129/mo
For growing operations with multiple crews and broader compliance requirements.
  • 1 organization · Up to 50 users
  • Unlimited worksites
  • Everything in Starter
  • FLHA & safety forms
  • Vehicle inspections & driver logs
  • Advanced audit trail
  • Priority support
Enterprise
Custom
Volume pricing available
For large contractors and multi-crew rollouts requiring custom configuration.
  • Multiple organizations
  • Unlimited users & worksites
  • Everything in Professional
  • Custom onboarding
  • Dedicated account support
  • SLA agreement
FAQ

Questions from
the field.

Real answers for contractors, supervisors, and project managers evaluating GrandProof.

GrandProof captures are designed to meet the requirements of a documented chain of custody. GPS coordinates, timestamps, user identity, and supervisor sign-off are all locked at the moment of capture.
Yes. Captures are queued locally when there is no signal and synced automatically when connectivity is restored. The timestamp and GPS data are locked at the moment of capture — not when the sync happens.
The fit period is a 14-day trial window from the moment your organization is created. Full access to all plan features — no credit card required to start.
Yes. GrandProof is a mobile web application that works on any modern smartphone — iOS or Android — without requiring app store installation.
Yes. Founding customers pay the founding rate for as long as they remain subscribed. Your rate will never increase as a founding customer.
Get Started Today

The next dispute is coming.
Will you have the proof?

Join construction crews already using GrandProof to capture tamper-proof field evidence and protect their teams from day one.

14-day fit period · No credit card required · Cancel anytime