Best Photo Authentication for Work
Timemark provides photo authentication with tamper-proof evidence for contractors and field service pros. Verify work with time-stamped and geo-tagged images. Build trust and prevent disputes.
Trusted by 3.7M field pros and teams from
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Verify Job Photos With Tamper Proof Data
Is this photo real? Was it really taken on-site and at the right time? Is this photo real? Was it really taken on‑site and at the right time? Research from the National Institute of Standards and Technology shows that image metadata, such as GPS coordinates, dates and times, may be limited, absent, inaccurate, or altered without necessarily changing image content.
As noted in another industry research, there is a clear "need for lightweight authentication solutions to detect basic tampering in field-collected images. Timemark acts as your on-site photo authentication tool. It captures secure photo data like a digital seal, so you and your clients can verify its authenticity instantly, straight from the camera.
Key Features
Auto-Tag Photos
Each photo you take automatically includes verifiable data for digital photo authentication: time, GPS coordinates, and address are all securely recorded. Unlike standard phone cameras, Timemark saves you from digging through metadata or guessing details later.
- GPS and timestamp data are tamper-proof, even if system time or GPS is manipulated
- Switch on to add more context such as latitude, longitude, weather, elevation, compass direction, etc.
Photo Verification
Every photo you take with Timemark comes with a unique photo code that makes photo authentication simple and reliable. Enter the code or upload the photo in Timemark’s Verification Center to instantly check its authenticity.
- Each code links to full metadata including GPS photo location, timestamp, and device details
- Provides trustworthy evidence for audits, insurance claims, or dispute resolution
- Quickly share verified photo or job documentation with clients or management
View on a Map
See every verified photo on a map to confirm where and when work happened. Perfect for remote site checks, delivery tracking, or inspection verification.
- Zoom in to examine specific areas or zoom out to view the overall site status at a glance
- Instantly identify missing records or inconsistent documentation
- Keep every photo neatly organized and accessible for audits or reports
Quick Professional Reports
Turn your verifiable photos into clean, professional reports in minutes. Each file you export includes timestamp, GPS location, and verification data. Ideal for audits, insurance claims, or compliance.
- Export all GPS photo locations, timestamps, and notes in one file
- Sort or filter by project, date, or other job details in Excel for fast analysis
- Maintain verifiable evidence images to share confidently with clients or management
How to Ensure Photo Authentication?
1. Get Timemark App
Go to app stores, find Timemark and download it. Open the app, grant camera and location permissions.
2. Take Stamped Photos
Tap the camera button. Timemark adds non-forged timestamp and location automatically.
3. Verify Authenticity
Open the Verification Center to confirm your photo’s details and view all traceable metadata for proof and reports.
Use Cases
Construction
Construction teams use Timemark for on-site photos. It adds GPS to mark locations (e.g., wall framing) and auto-sorts by project, making it easy to prove work to clients and cut rework.
Cleaning Services
Cleaners use Timemark to snap before/after site photos. Tamper-proof GPS tags confirm site location, time-stamps prove service hours, and easy sharing resolves client disputes fast.
Repair Teams
Timemark lets repair pros snap issue/repair photos. Auto-sort by repair job, sync to cloud, and build reports in one click. Simplify prove work to clients and managers.
Timemark vs Other Solutions
Comparison | System Camera | Timestamp Camera App | CompanyCam | Timemark Camera |
Data Integrity | Low. Metadata can be easily changed. | Medium. Timestamp and GPS location can be manipulated by changing the system time zone and using fake GPS. | Medium. Only offers basic timestamping feature. Timestamp and GPS location can be forged. | High. Verified, tamper-proof data locked at the moment of capture, ensuring photo authentication. |
User Experience | Simple for anyone | Can be confusing to navigate | Too many bloated features | Simple for everyone, powerful for the whole company |
Best For | Personal photos | Basic time logging | Internal team collaboration | Resolving disputes and proving work with undeniable evidence |
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"Timemark’s unique photo codes keep our site shots trusted. It’s the best photo authentication tool we’ve used for keeping photo records clean and credible. Sharing reports with one click also made updating the office on cable installs way faster."
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"Our crew’s photos used to be chaos. No location, no context. With Timemark, every image is timestamped, mapped, and verifiable. We’ve completely stopped the ‘where is this?’ back-and-forth."
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"The general contractor accused us of being behind schedule. I sent a Timemark report with a week's worth of time stamped photos. This is the best app ever that gives us the evidence we need to protect our reputation and our payments."
Want to Organize Job Photos Smarter?
Authentic photos are only valuable when they’re organized. Teamspace auto-collects and auto-organizes verified photos by project, location, and crew, creating a reliable record your entire team can access and share.
Frequently Asked Questions
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Try Timemark Free & Get Easy Photo Authentication
Download Timemark free to add secure timestamps/GPS, share proofs, and stop work photo headaches fast.