Proofmode Capture

by Guardian Project: Apps You Can Trust · Photography · Free

On Google Play since February 2017 · Data updated 2026-10-27

Proofmode Capture is made and published by Guardian Project: Apps You Can Trust. AppBrain is an independent app data site and isn't affiliated with Guardian Project: Apps You Can Trust. The app name, icon, screenshots and description belong to Guardian Project: Apps You Can Trust and are shown as published on Google Play.

AppBrain's verdict

Established

Rating on Google Play: 3.96; 80 ratings
Installs: 15 thousand
Last updated: October 13, 2026
Ads: No ads
Size: 65.1 MB

Proofmode Capture has 15 thousand installs. It doesn't have enough ratings yet to judge what users think.

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User feedback

Ratings and reviews on Google Play

Comments on Proofmode Capture for Android

★★★★★ Samuel Klein · Feb 24, 2017

This is awesome. I never thought I could do this without using ridiculous handwritten time-stamped signs. Much easier than expected.

★★★★★ John Mark Wildenthal · Mar 1, 2017

Everyone should have this app. If you ever want your pictures or video to be taken seriously by media, police, or courts, this level of cryptographic documentation is going to be necessary.

★★★★☆ Gabriel · Jan 8, 2023

The app works, but I would like it to work with any file type (at least audio). Canging the file extension seems to work as a workaround, though.

★★★★★ Kyle Wooten · Feb 26, 2022

I have yet to be able to use this application, but I am very excited about using it because I think that simply that idea about what it does in the functions that is it does in the library instead of hold are so valuable

★★☆☆☆ A Google user · Nov 6, 2019

Doesn't seem to work on Galaxy S9+. I keep getting the "No proof exists yet. Try again in one minute" error when I try to Share Proof a regular pic from Gallery. Any ideas?

★★☆☆☆ Roger Sherman · Nov 23, 2021

Easy to use and no ad.s. "Visuals" ha-ha, two stars for the concept attempt (it almost gives the public AmericA bar association worthy camera evidence - something like this could make Calif. Prop. 65 a real Law). It is really where it needs to be: unfunctional (it sits in the background without generating proof until expostfacto tapped) - whilst Manual Camera app reports camera2 NO raw data camera support.

★☆☆☆☆ Trevor Elliott · Mar 3, 2022

Doesn't work at all, but looks nice. I've had it on my phone for months and months, but it's never been able to generate any proofs. Share pic, no proof exists, press generate proof, press basic or robust (didn't matter), spins for over 30 min and still nothing. I've tried multiple times over the past several months with different pictures and everything. Kept it on the phone hoping an update would eventually make it work, but nope. S20 Ultra, Android 11 & tried on newest update of Android 12.

Google Play Rating history and histogram

Store listing

By Guardian Project: Apps You Can Trust, from Google Play

“Verifiable Camera for Defending Reality”

Screenshots by Guardian Project: Apps You Can Trust, from the Google Play listing

Description by Guardian Project: Apps You Can Trust Written by the developer, not by AppBrain. Click to read.

Proofmode helps anyone capture and verify photos and videos of actual reality. In short, it helps people know your photos and videos are really real.

It enhances trusted visual metadata, authenticates camera hardware, cryptographically signs content, and uses third-party notaries for a decentralized, privacy-focused chain of custody.

Proofmode is a system that enables authentication and verification of multimedia content, particularly captured on a smartphone, from point of capture at the source to viewing by a recipient. It utilizes enhanced sensor-driven metadata, hardware fingerprinting, cryptographic signing, and third-party notaries to enable a pseudonymous, decentralized approach to the need for chain-of-custody and “proof” by both activists and everyday people alike.

Proofmode supports the Coalition for Content Provenance and Authentication (C2PA) standard, Content Credentials and the Content Authenticity Initiative.

Recent changes:
• Pro camera mode: manual ISO, shutter, focus and white balance
• RAW (DNG) photo capture
* Fix for Privy Wallet Registration (Location Proof)
• New action bar for Filebase uploads and Location Protocol attestations
• Status badges for C2PA, Filebase and on-chain proofs
• Signing now retries automatically, with clearer alerts when the server is unreachable
• OpenStreetMap links for GPS locations
• Fixed timestamps in proof.json to use correct UTC time
• Updated translations

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Safety and technology

Found in the app by AppBrain

Ads: No ads
Price: Free
Libraries: 59
App size: 65.1 MB
Needs Android: 9.0+
Content rating: Everyone

Technologies used by Proofmode Capture

21 permissions · 59 libraries

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Releases

Updates seen on Google Play

Version: 3.5.0-RC-4
Launched: February 2017

Oct 13, 2026UpdateVersion 3.5.0-RC-4
Sep 10, 2026UpdateVersion 3.3.0-RC-1
Jun 26, 2026UpdateVersion 3.2.0-BETA-2
Jun 16, 2025UpdateVersion 2.6.0-RC-3
Feb 14, 2025UpdateVersion 2.5.0-RC-1

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Alternatives

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Installs

Tracked by AppBrain

Last 30 days: 260
Play install range: 10+ thousand
Launched: February 2017

Installs over time

Proofmode Capture has been installed 15 thousand times. Over the past 30 days, it has been installed 260 times.

Rankings

Google Play top charts

Google Play Rankings for Proofmode Capture

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About the app and developer

About Proofmode Capture

Proofmode Capture is a photography app developed by Guardian Project: Apps You Can Trust.

How many times has Proofmode Capture been downloaded?

Proofmode Capture has been downloaded 15 thousand times. In the last 30 days, the app was downloaded 260 times.

What is the rating of Proofmode Capture?

Proofmode Capture is rated 3.96 out of 5 stars, based on 80 ratings.

Is Proofmode Capture free?

Proofmode Capture is free. The APK size is 65.13 MB. The latest APK version available is 3.5.0-RC-4. The last update was on October 13, 2026.

What are the requirements for Proofmode Capture?

Proofmode Capture requires Android 9.0+ or higher. The app has a content rating of Everyone. The APK has been available on Google Play since February 2017.

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Developer information for Guardian Project: Apps You Can Trust

Guardian Project: Apps You Can Trust

share@proofmode.org

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