Postscriptum vs TapNoise

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Postscriptum compared with TapNoise
Detail	Postscriptum	TapNoise
What it does	A private AI journal that turns your daily reflections into a memoir	Satisfying keyboard sounds for your Mac with Tappy, a desktop buddy
Stage	MVP	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Free	Paid
Pricing	$0 during open beta; paid plans to come later	Solo: US$14.99 for 1 Mac (launch price US$5.99 for first 500 licenses); Duo: US$20.99 for 2 Macs (launch price US$7.99 for first 500 licenses). One-time payment with 7-day money-back guarantee.
Key features	Nightly check-in with AI-generated questions Adaptive second question based on previous entries Unsealed entries that cannot be edited AI memoir generation in literary prose Weekly pattern digest AI-generated insights about themes and patterns Full archive with streaks and backstory	Clean Mode for safe keyboard cleaning Knock commands for music control and screen locking Guard Mode with theft alarm and charger detection Agent Sounds for Claude Code, Cursor and Codex Song Mode to play melodies while typing Real-time typing speed and daily streak tracking Automatic silence during calls and meetings Break buddy reminders to prevent typing strain
What makes it different	The second question intelligently adapts based on what you previously wrote Entries are permanently sealed and cannot be edited Automatically composes your journal into a literary memoir	Detects key pressure through motion sensor for responsive volume One-time purchase with all features and updates included forever Responsive desktop companion that reacts to typing and system events Works with AI coding agents to notify when tasks complete
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	Not checked yet no change since last check	15 −4 (down) since last check
Trust Flow (Majestic)	0	7
Citation Flow (Majestic)	12	23
Referring domains (Majestic)	1	20

5 details filled in for both companies.

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