Prove your photos and videos are real. In a world of deepfakes and AI manipulation, CDA2 gives your photos and videos a unique digital fingerprint β so anyone with the app can verify they're authentic and unedited.
π YOUR PRIVACY COMES FIRST
Your photos and videos NEVER leave your device unless you share them.
When you capture media, CDA2 generates a SHA-256 cryptographic hash β a mathematical fingerprint. Only this hash syncs to the cloud. Never the photo itself.
β’ It is mathematically impossible to recreate your photo from its hash
β’ No one β not even us β can see, access, or recover your media
β’ Use Anonymous mode β no email or personal data required
β’ Export or delete all your data at any time
β’ Review our privacy policy directly inside the app
Your trust is not optional. It's our foundation.
π€ SHARE & VERIFY WITH OTHERS
CDA2 isn't just for you β it creates a chain of trust between people.
Here's how: you capture a photo with CDA2 and send it to someone. The recipient opens CDA2 on their device and verifies it. The app checks the file's hash against the cloud record β if it matches, the photo is confirmed
authentic and unmodified. If even a single pixel was altered, verification fails.
β οΈ Important: share photos using methods that preserve the original file β email attachments, cloud drives (Google Drive, Dropbox), Bluetooth, or USB transfer. Platforms like WhatsApp, Instagram, or Facebook often compress or
re-encode images, which changes the file and breaks verification. When in doubt, verify after receiving to check.
πΈ KEY FEATURES
π SHA-256 Authentication β Every capture gets a cryptographic fingerprint. Even one pixel change produces a completely different hash.
βοΈ Cloud Hash Sync β Hashes sync across devices for cross-user verification. Works offline β unsynced items queue and upload when connectivity returns.
β
Batch Verification β Verify multiple photos and videos at once with a clear results report.
ποΈ Custom Watermarks β 6 positions, 6 styles, adjustable size, opacity, colors, and background shapes.
π· Full Camera Suite β Front/back camera, flash (off/on/auto), self-timer (3/5/10s), photo and video modes.
π Gallery & Management β Filter by type, multi-select, rename, share verification info, full-screen viewer.
π Flexible Sign-In β Google, email/password, or fully anonymous.
πΎ Export & Recovery β Export metadata to JSON, recover your library after reinstall, delete all data anytime.
π 16+ Languages & Dark/Light Themes
π€ WHO IS CDA2 FOR?
Everyone. Anyone who wants to prove their photos are real.
Whether you're a parent documenting your child's milestones, a traveler capturing moments abroad, a tenant photographing apartment conditions, or someone who simply values truth in a digital world β CDA2 is for you.
π± Social Media Users β Give your audience a way to confirm what you share is genuine.
π° Journalists β Send field photos to editors who can verify originals instantly. Support media integrity and combat misinformation.
π Legal & Compliance β Create fingerprinted documentation with timestamps and device IDs. A strong supporting layer for record-keeping workflows.
π¨ Content Creators β Share your work and let anyone confirm you're the original creator with a verifiable digital fingerprint.
π’ Businesses β Document incidents, property, or projects with tamper-evident records. Share with stakeholders who can independently verify.
π‘οΈ Privacy-Conscious Users β In the age of deepfakes, demonstrate your photos are real β captured by a real person, on a real device, at a verified time.
βοΈ HOW IT WORKS
1οΈβ£ Capture a photo or video with CDA2
2οΈβ£ A unique SHA-256 fingerprint is generated instantly
3οΈβ£ The hash syncs to the cloud β your photo stays on your device
4οΈβ£ Share the photo with anyone using a lossless method
5οΈβ£ The recipient verifies it with CDA2 β authentic or modified, instantly