An honest comparison.
Timemark is the incumbent. We use it. We've read every one-star review. Here's what we kept, what we fixed, and what we built different.
All comparisons sourced from Timemark's public documentation, App Store reviews, and Trustpilot as of May 2026.
| Trustamp | Timemark | |
|---|---|---|
| Target user | Individuals & small teams | Field teams & enterprises |
| Verification standard | ✓ Open C2PA-compatible | ✗ Closed (timemark.com only) |
| Verifiable in Adobe / Chrome | ✓ Yes (V2; principles in V1) | ✗ No |
| Public verify URL | ✓ Yes — works after EXIF strip | ~ Photo Code, in their portal only |
| Manual GPS refinement | ✓ Doorplate level, transparently noted | ✗ Not allowed (top 1-star complaint) |
| Server-verified timestamps | ✓ Yes | ✓ Yes |
| Hash witness (cheap "register" without upload) | ✓ Lite tier — upgrade old photos anytime | ✗ Must upload at capture or lose proof |
| Watermark-only mode (no verification) | ✓ Free tier, full creative control | ✗ All-or-nothing |
| PDF export for insurance / legal | ✓ Pro tier | ✓ Yes |
| Free tier | ✓ Forever free for watermarking | ~ Limited trial, then $5+/user/mo |
| Entry-level pricing | ~$2/mo Lite, ~$5–9 Pro | $5/user/mo Business; $49.99/yr Pro |
| Subscription cancellation | ✓ One-tap, in-app | ✗ "Was one day late… now stuck with $40/yr" (review) |
| Price-hike protection | ✓ Early waitlist gets price locked | ✗ "The price is quite rising every month" (review) |
| Built for teamspaces / collaboration | ~ Single-user focus first (multi-user later) | ✓ Yes — Teamspace is core |
| Integration with Slack / Google Drive / Zapier | ~ Planned for V2 | ✓ Yes |
| 3.7M+ users / enterprise logos | ✗ Pre-launch (honest about it) | ✓ Yes |
You're a team of 10+ field workers who all need to upload to a shared cloud, you want integrations with Slack and Google Drive out of the box, and you're fine with Timemark being the only place your credentials can be verified.
You're an individual or small team who needs photo proof that's independently verifiable by insurance adjusters, lawyers, or platforms that don't know your photo app. You want a free tier for everyday watermarks and only pay when you actually need verification. You want one-tap cancellation if it doesn't work for you.
Credit where it's due. Server-verified timestamps and the basic "photo + GPS + time" proof concept are good ideas. We kept them.
Open instead of closed. Your credential isn't locked to our website — any C2PA-aware tool can verify it.
GPS refinement instead of GPS lock. When GPS is wrong (and it often is), you can edit the doorplate detail — but country/city/street are locked to your real location, and every edit is transparently noted.
Free tier with no proof. If you just want a watermark camera, you shouldn't have to pay.
Witness, then upgrade. Photos register a tiny fingerprint at capture time — but you only pay to "reveal" the original when you actually need a credential.
Honest pricing. No surprise renewals, one-tap cancellation, no hidden team-plan upsell.
Early signup = locked-in pricing, Pro at Lite price for 12 months.