Viewdown vs Habenna

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

Viewdown compared with Habenna
Detail	Viewdown	Habenna
What it does	Markdown viewer for Mac, with live preview	A habit tracker with no streak counter. Grace days, weekly goals you set, and not one notification you didn't ask for.
Stage	Established	Not given
Founded	Not given	Not given
Based in	NL	Not given
Pricing model	Not given	Freemium
Pricing	$11.99 USD one-time purchase, with 14-day free trial and no credit card required	Free forever with unlimited habits, week bar, year heatmap, month calendar, grace days, weekly goals, milestones, share cards, home-screen widget, backup file and CSV export, and access on phone and tablet in ten languages with no account required. Optional paid upgrade available as either a subscri
Key features	Live preview with automatic file watching Automatic scrolling to changed content Mermaid diagram rendering LaTeX mathematics typesetting Syntax highlighting for 80+ languages Table of contents sidebar Smart search matching rendered text Support for tables and task lists	Grace days: monthly allowance that covers missed days without resetting the record Weekly goals: set how many days a week a habit should happen, from one to seven Week view with seven slots showing rate as a plain count Milestones tracking days done without losing progress No push notifications by default; reminders only when enabled per habit Home-screen widget showing up to four habits for current week Backup file and CSV export available anytime Available in ten languages on phone and tablet Device sync with paid upgrade via Apple or Google account
What makes it different	Works with any editor already in use without plugins or extensions Automatic scrolling marks recently edited content	Grace days provide monthly slack so life's irregularity doesn't break habit tracking Completely free with no ads, trials, or account required
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)	29 +29 (up) since last check	7 −2 (down) since last check
Trust Flow (Majestic)	24	1
Citation Flow (Majestic)	19	15
Referring domains (Majestic)	39	9

4 details filled in for both companies.

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