Now on android

Your Second Brain, in Your Pocket.|

Carry your entire connected workspace with you. Capture ideas on the go, find them by meaning, and watch how they link, all processed locally.

Download for Android

Continuity Band

Never start from zero again.|

Your workspace isn't trapped inside an app, it's plain-text files sitting on storage you already own. Everything you've built is simply there.

No hidden cloud. No account gate. No sync button to babysit. Your notes move because the files were always yours to begin with.

Local-first by default, not as an upgrade

QEncrypt file encryption, applied selectively

Fully portable, plain-text ownership

Built for Thinking on the Move

A full knowledge system that fits in one hand.|

Download for Android

Capture the moment

Open straight to a daily scratchpad and get an idea down before the bus stop, the meeting, or the next distraction takes it from you.

Search by meaning

Forgot the exact phrase you used? Doesn't matter. Meaning-based search digs through your whole archive and still finds the right note.

Touch your connections

Your knowledge graph isn't just for desktop. Pinch, drag, and tap to explore how your ideas relate to each other.

Ask your notes

Ask a question and get a response pulled directly from your notes, with the exact source cited alongside it, not a generic guess from the internet.

Private by design

Local-first storage plus optional QEncrypt encryption means sensitive notes stay protected, even on a device that could end up anywhere.

Yours to keep

Every note is a portable, plain-text file. Move it, export it, or back it up on your own terms, any time.

Privacy Spotlight

A lost phone shouldn't cost you everything.|

Learn about privacy & Security

Phones get left in cabs, borrowed by kids, and forgotten on café tables. That risk is exactly why Socratus keeps everything local-first. Your notes live on your device and in storage you pick, never funneled through a server you can't inspect.

Anything sensitive can get an extra layer with QEncrypt's file-level, quantum-safe encryption, with a clear visual marker showing exactly what's locked down.

Local-first by default, not as an upgrade

QEncrypt file encryption, applied selectively

Fully portable, plain-text ownership

Social Proof

Loved by 1,000+ thinkers, writers, and developers.|

My archive finally makes sense

"Ten years of half-organized research, and Socratus is the first tool that actually shows me how it connects. I search for a concept, not a filename, and it still finds what I need, right from my phone."

Rahul M.

Research analyst

I stopped losing ideas on the go

"Best ideas hit me on my commute, never at my desk. Now I open the app, drop it in the daily note, and it's sitting there waiting when I sit down to write."

Aisha K.

Content strategist

Seeing the graph changed how I work

"I used to think in folders. Now I think in connections. Dragging through the knowledge graph on my phone between meetings has surfaced old work I'd completely forgotten existed."

Diego F.

Product consultant

Local-first sold me instantly

"I don't want another app holding my data hostage on someone else's server. Socratus keeps it all in plain-text files I own, encrypted where it matters, and that's the only reason I trust it on my phone."

Grace L.

Security researcher

AVAILABLE ON ANDROID