Certa is a tamper-proof jobsite photo tool for general contractors and builders. Each progress, punch list or damage photo is sealed the moment it's taken, so any edit breaks the seal.
With photos the owner can't challenge. Your superintendent takes progress photos live in Certa, and each one is sealed the moment it's taken. Certa builds a sealed report for each phase that you share with one link. Disputes in North America average $60.1M and last 12.5 months (Arcadis 2025): proof you can show on day one shortens them.
Take a sealed set of photos of the neighboring property before work starts. With Certa, each photo is sealed at capture, so nobody can claim it was edited afterwards. If a neighbor says your excavation cracked their wall, you can show its condition before you broke ground, and they can verify the photos themselves.
A regular phone photo can be challenged: its date and location are easy to change. A Certa photo is hashed and sealed at capture to support self-authentication under US Federal Rules of Evidence 902(13) and 902(14). Any edit breaks the seal. Admissibility is always up to the judge.
Yes. Certa works on your crews' phones or inside your project management software. Camera roll uploads are refused, each photo is sealed at capture, and photos are filed by project and phase, ready to share with the owner, the insurer or the court.
$1.50 per sealed report, with plans from $129 a month (up to 2,000 reports a year) and volume discounts above. Users are unlimited. The first month is free, with no commitment.
They install the Certa app on their phone and take jobsite photos right in the app. Sealing happens automatically, the moment the photo is taken.
You, and anyone you share the link with. We only keep a digital fingerprint.
It's built for it. Each photo is hashed and sealed at capture to support self-authentication under Federal Rules of Evidence 902(13) and 902(14). Admissibility is always up to the judge.
Try it free for a month, no commitment.
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