Verifiable proof photos for work that happens on site.
Capture verifiable photos with trusted time, GPS, street address, and tamper-evident signatures. ProStamp Pro adds professional tools and private backup; Team Workspace keeps company evidence organized.
Built for evidence, not decoration.
Every photo carries the proof a client, insurer, or auditor needs — with signed capture details that make later image changes detectable.
How it works
From the field to the client in three steps.
Capture
Open the app and shoot. ProStamp burns in the time, GPS, and street address, then seals the photo with a cryptographic signature.
Back up or upload
ProStamp Pro backs up to your own Google Drive or OneDrive. Team Workspace sends company evidence to the right Project.
Review & deliver
Managers review by job, confirm authenticity, and export clean reports for clients and claims.
One app, two ways to work
For yourself or your company.
Go further with ProStamp Pro.
Create client-ready evidence without changing how you capture.
- Remove ProStamp branding from photos, videos, and reports
- Automatic backup to your own Google Drive or OneDrive
- Up to 10 client profiles and unlimited batch sharing
- Field Reports, multi-page scans, map export, and Room Scan on supported LiDAR devices
Keep every project, upload, and review in one workspace.
Team Workspace gives field members a company-owned evidence flow and managers a browser-based portal.
- Projects, members, and role-based access
- Durable photo and video upload queue
- Manager review, verification, and report export
- Team Time Clock, Site Notes, and audit history
Anyone can verify a ProStamp photo.
Each photo carries a tamper-evident signature. Drop one into our verifier to inspect its signed capture details and check whether the covered image or metadata has changed since signing.
Use cases
Wherever work has to be proven.
Cleaning & janitorial
Prove every unit, restroom, and common area was serviced — on time and to spec.
Property management
Document turnovers, inspections, and damage with location-stamped evidence.
Maintenance & repairs
Show before-and-after on every work order, with the timestamp to back it up.
Field service
Close out jobs with proof the client and the back office both trust.
Pro tools for individuals. A workspace for companies.
ProStamp Pro is $4.99/month or $49.99/year. Team Workspace is a separate business product for invited company teams.
Frequently asked questions
Put proof behind every job.
Start with the iPhone app, upgrade to ProStamp Pro when you need more, or connect your company through Team Workspace.