Diurnal vs Systune

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

Diurnal compared with Systune
Detail	Diurnal	Systune
What it does	A native Mac notepad where everything you write becomes a task, with automatic tidying	Clean your Mac without the guesswork
Stage	Not given	MVP
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Not given	Not given
Pricing	Not given	US$39 once for three Macs in one household with two years of updates (direct). Mac App Store edition planned at US$39 once with final pricing to follow App Store tiers. First 100 waitlist signups receive free lifetime license including all future versions. 14-day full trial and 30-day refund planned
Key features	Write tasks inline as natural paragraphs No required dates for tasks Automatic task archiving Project management with deadlines Google Calendar integration Voice capture Focus mode with Pomodoro timer AI assistant integration via MCP Offline sync across all Macs Drag-and-drop task planning	103 cleaning categories with four risk levels 92 security and privacy checks with one-click fixes 300 macOS settings with profiles, snapshots and undo Disk analysis with list, treemap, ring and file-kind views Duplicate and large-file finder Command-line interface with JSON output Full-screen terminal dashboard iPhone companion over local network 67 maintenance tasks including rebuilds and service restarts Startup item and launch daemon inspector
What makes it different	Automatic tidying eliminates manual maintenance No overdue piles or red tasks Native Mac performance built for one platform Works offline without syncing delays Combines notepad freedom with task structure	All changes listed and confirmed before removal with a test strip showing exact paths and bytes Protected system paths refused and user files offered to Trash with regenerable caches deleted in place Five rounds of independent security, correctness and performance review with published findings Local processing with no analytics, crash reporting or scan result uploads
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)	7 +1 (up) since last check	11 +1 (up) since last check
Trust Flow (Majestic)	3	7
Citation Flow (Majestic)	24	20
Referring domains (Majestic)	23	17

3 details filled in for both companies.

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