Lens Proof-of-Work Camera

GPS & Content Credentials

Only for iPhone

Free · In‑App Purchases

iPhone

Lens Proof is on the C2PA list of conforming products. With Lens Trust, your iPhone signs each photo and video as you take it, so anyone can check the original file. Lens Proof is a field camera for iPhone that keeps the time, place, and weather on every photo and video. With Lens Trust, anyone with the original file can check when it was taken and whether it has changed. • Shoot: Lens Proof geotags each capture and puts the date, time, and weather on the frame, with your note and logo. It works offline. • Sign: With Lens Trust, your iPhone signs each capture the moment you take it, and a trusted timestamp is added. • Check: Anyone can check a signed original file at check.lensproof.app, without an account. • Report: Turn the day's captures into a PDF report in seconds. Pro and Trust add AI captions and a summary. C2PA CONFORMANCE C2PA is the open standard behind Content Credentials. Lens Proof is listed as a conforming product at Max Assurance Level 1, and Lens Proof Check, the checker at check.lensproof.app, is listed as a conforming validator. Anyone can look up both on the public C2PA list. Lens Proof is made for site evidence in construction, insurance and motor claims, public works inspections, property management, legal work, and journalism. PLANS • Lens Core (one-time purchase): the camera, overlays, QR codes, and visual PDF reports. • Lens Pro (subscription): adds AI reports and offline maps. • Lens Trust (subscription): adds Content Credentials and trusted timestamps to Pro. Each device gets one free 14-day trial of Lens Core. After the trial, choose a plan to keep capturing. Terms of Use: https://lensproof.app/tos Privacy Policy: https://lensproof.app/privacy

  • 5.0
    out of 5
    1 Ratings

Thanks for using Lens Proof. TL;DR: In Auto mode, Lens Proof now signs a video even when it can't reach the trusted timestamp service, for example when the cellular connection is weak or lost. With Require Content Credentials on, a video that can't be signed is now saved without Content Credentials instead of being lost. IMPROVED • Video Signing: With Timestamp Mode set to Auto, Lens Proof now signs a video even when it can't reach the trusted timestamp service, for example when the cellular connection is weak or lost. The video is signed without a trusted timestamp, as photos already are, and keeps its Content Credentials. • Signing Status: When a file is signed without a trusted timestamp, the signing status now says that the file stays valid until the certificate expires. • Require Content Credentials: The setting description now says that a capture may still save without Content Credentials if signing fails. FIXED • Videos: With Require Content Credentials on, a video could be lost when signing failed. Lens Proof now saves the video without Content Credentials instead. Love Lens Proof? Leave a review. It helps. Have feedback? I read every email. No AI, just me. reneboygarcia@field-notes.dev

The developer, Fieldnotes dot Dev Opc, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Purchases
    • Contact Info
    • User Content
    • Identifiers
  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Location
    • Usage Data
    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

Seller
Fieldnotes dot Dev Opc
Size
41.5 MB
Category
Photo & Video
Compatibility
Requires iOS 17.0 or later.
  • iPhone
    Requires iOS 17.0 or later.
Languages
English and 8 more
  • English, Arabic, French, German, Japanese, Korean, Portuguese, Simplified Chinese, Spanish
Age Rating
4+
In-App Purchases
Yes
  • Lens Trust Weekly $19.99
  • Lens Pro — Yearly $149.00
  • Lens Trust $249.00
  • Lens Pro — Monthly $14.99
  • Lens Trust Founding Reservation $49.00
  • Lens Pro (Founding) — Yearly $99.00
  • Lens Pro (Founding) — Monthly $9.99
  • Lens Core Lifetime $9.99
Copyright
© 2026 Fieldnotes dot Dev Opc