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LockProof is field-work verification software — live-photo, GPS-timestamped proof that jobs actually got done.

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Website, pricing, platforms and company facts side by side.
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| Website | lockproof.com | opalstack.com |
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| Company | Startup from the United States · 1 - 9 employees · 2026 | — |
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In their own words, as submitted to SaaSHub.


LockProof gives property managers and field-service operators tamper-evident proof of completed work. Workers get a text, tap a link, and take a live photo — no app, no login, no gallery uploads. Each record is GPS-stamped, server-timed, and sealed with a cryptographic chain of custody, ready if...
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As answered by people managing LockProof and Opalstack.
LockProof's answer
LockProof turns field work into verifiable, tamper-evident records. Workers receive a text or WhatsApp link that opens the live camera—without allowing gallery uploads—and each submission receives a server-set timestamp, a SHA-256 fingerprint, and GPS when the worker shares location. Workers do not need to install an app or create an account.
LockProof's answer
LockProof is purpose-built to prove that a scheduled visit or task actually happened. Unlike tools that simply organize uploaded photos, LockProof combines live-only capture, automated reminders, unpredictable request timing, server-set timestamps, and a documented chain of custody. The resulting record is searchable and ready to share if a customer, auditor, or property owner questions the work.
LockProof's answer
LockProof is built for organizations managing recurring work performed away from the office. Its primary users include property managers, commercial cleaning companies, security teams, snow and ice contractors, field-service businesses, vacation-rental operators, and home-care agencies. It is especially useful for managers who need reliable proof that workers or vendors completed a visit or task.
LockProof's answer
LockProof began with a common problem: field work may genuinely be completed, but when someone questions it weeks later, the only evidence is often a memory, a checkbox, or an undated photo buried in a group chat. LockProof was created to close that gap by giving honest operators a clear record that can stand on its own—making disputes shorter and completed work easier to prove.
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