Graphine makes a secure camera app you can use on any android phone: https://play.google.com/store/apps/details?id=app.grapheneos.camera.play&hl=en_US

https://github.com/AKS-Labs/CircleToSearch

Sure thing!

It links to a blog entry from his AI project confer.to: https://confer.to/blog/2026/03/encrypted-meta/

“As Confer continues to operate as an independent entity, I will also work to integrate Confer’s privacy technology so that it underpins Meta AI. Meta is building advanced frontier models, so this will combine the most private AI chat technology in the world with the most capable AI models in the world. As Meta builds more AI products beyond the basic chat paradigm, the privacy technology from Confer will be a part of the foundation of everything that is to come.”

I use it via Beeper On-Device

https://blog.beeper.com/2025/07/16/the-new-beeper/?ref=beeper-faq