h NuDefndr | Machine Learning Nude Detector & Encrypted Vault

FORGOT ABOUT
THAT RISKY
PHOTO?
WE FIND IT.

Your iPhone library has thousands of memories - and a few you'd rather not scroll past in public.

NuDefndr scans your library, detects nude photos you may have forgotten about, and allows you to choose what to do with them.

iOS 18+ · SensitiveContentAnalysis · Core ML

Engine

Neural

Network

Zero

Vault

256-bit

Source

Open

How_It_Works

Three steps. Thirty seconds.

Scan your library, review what was found, lock it away. That's it.

01

Scan

Apple's Neural Engine analyses your full photo library - on your device, completely offline.

SensitiveContentAnalysis
02

Review

See what was found. You're always in control - nothing moves without your approval.

Manual Approval
03

Lock

Photos are encrypted and hidden behind FaceID. Only you can ever open them.

ChaCha20-Poly1305

Privacy_Promise

Built with privacy in mind.

No cloud. No servers. No keys on our end. We designed it so trust isn't required.

Zero network traffic

NuDefndr makes no internet connections. Nothing leaves your phone - not for scanning, not for anything.

No cloud, no servers

We don't have infrastructure to store your photos. There's nothing to breach, subpoena, or hand over.

You hold the only key

Encryption keys never leave your device. We can't decrypt your vault - even if someone forced us to try.

Open source

Don't take our word for it. Monitor our change-log & transparency during every app update.