Latent Notes

Your private second brain on iPhone. Semantic search, a knowledge graph, and on-device AI chat — your notes stay on your device.

Latent is a privacy-first personal knowledge app for iPhone and iPad. Write rich notes, connect ideas with @mentions, explore a living knowledge graph, and ask questions in natural language — powered by Apple Intelligence, entirely on your device.

WHAT YOU CAN DO • Write and format notes with a full rich-text editor • Link notes with @mentions and discover connections in a force-directed graph • Search by meaning, not just exact words — multilingual semantic search runs on the Neural Engine • Chat with your library: Latent retrieves relevant context locally and Apple Intelligence answers on-device • Import PDFs and turn them into searchable notes • Sync notes optionally via your private iCloud container (chat stays local)

PRIVACY BY DESIGN • ChaCha20-Poly1305 encryption at rest • Keys stored in the device Keychain • No ads, no tracking, no third-party AI servers for your content • Embeddings and search run locally with CoreML

REQUIREMENTS Latent requires iOS 26 and Apple Intelligence on a compatible device (A17 Pro or later, where available in your region).

Your knowledge stays yours.