Notesnook

A private notes app that encrypts every note on your device before syncing. The free plan covers unlimited notes on unlimited devices with notebooks, tags and a full editor.

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Free Enough

This app has paid upgrades — but its free tier is the complete product. Most people who use it never feel the need to pay.

Paid plans are the Essential Plan from $1.99 and Pro from $4.49, with yearly options up to $69.99 and a Believer Plan at $8.99 or $89.99. The free tier is a complete notes app with unlimited notes, unlimited devices and encryption always on.

Something wrong?

Reports go to a human review queue. No timeline promised — this is a small pilot, but every report gets read.