A portfolio app that can't read your portfolio.

Monk Portfolio is a privacy-first app for tracking stocks, ETFs, crypto, and fixed assets across your browser and iPhone. These pages explain exactly how that works — encryption, sync, privacy, and the choices behind them.

The principles

Local-first

Your portfolio lives in your browser or your phone. The app works offline, with no account and no login. Without sync, nothing about your holdings is ever stored on our servers — the only portfolio data that leaves your device is the bare ticker symbols needed to fetch live prices, never your quantities, values, or identity.

Zero-knowledge sync

When you do turn on sync, your data is encrypted on your device before it reaches our server, which stores only an opaque encrypted blob and the non-secret metadata needed to sync it — no email, no name, no plaintext. Because the data is encrypted on your device and we never hold the key, we cannot decrypt it — nobody can read it but you.

No personal information, ever

There's no account to create: no signup, no email or password, no Apple ID, no location, no payment information. We don't use cookies. We don't load third-party trackers, ad pixels, or social widgets. Anonymous usage events are your choice on the first screen and live behind a single Settings toggle — read the details. The only time you'd share an email is if you choose to add one to the optional Contact Us form.

You own your data

Export a full JSON backup any time, restore it on any device, and wipe everything — local and remote — in a single tap.

Start here

Pick the topic you're curious about. Most people want to read Security & Encryption first, then Privacy.