Mermaid Viewer vs Rindraw

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

Mermaid Viewer compared with Rindraw
Detail	Mermaid Viewer	Rindraw
What it does	Free online Mermaid diagram viewer and editor with live preview, AI generation, and exports	A drawing and painting app for iPad, iPhone and Mac where every stroke stays editable
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Paid
Pricing	Free: unlimited editor and preview, 3 saved diagrams, 5 AI uses total, PNG export 1× with watermark. Starter: $6.99/month or $69.90/year; 30 saved diagrams, 500 AI conversations per month, PNG export up to 4× without watermark. Pro: $11.99/month or $119.90/year; unlimited diagrams, unlimited AI, PNG	$12.99 once, no subscription. One purchase covers iPad, iPhone and Mac.
Key features	Live preview of Mermaid code as you type AI diagram generator, editor and syntax fixer PNG export on every plan; JPG, SVG and PDF on Pro All 22+ Mermaid diagram types supported Share diagrams via public links and embeds Save diagrams to cloud with folders and version history Keyboard shortcuts and autocomplete Mobile-responsive editor with pan and pinch-zoom	Strokes stay editable: recolor, bend, scale and warp without losing sharpness Over 300 brushes from 36 sets with pressure, tilt and barrel roll support Import and use Procreate and Photoshop brushes Layers with groups, masks, blend modes and adjustment layers Pages and frames on one canvas for comics and storyboards Animation with frames, onion skins and playback Paint on 3D models in OBJ and USDZ format Export to PNG, JPEG, HEIC, JPEG XL, TIFF and PSD with CMYK for print Symmetry and mirroring tools Undo history that survives closing the app
What makes it different	No account or sign-up required to start editing diagrams Affordable pricing: Starter at $6.99/month, Pro at $11.99/month Diagrams render in your browser; nothing stored unless you choose to save Fast editor with instant rendering and clear error messages	Strokes remain fully editable after drawing, unlike other apps that flatten to pixels One-time purchase with no subscription covers iPad, iPhone and Mac Seamless import of files, brushes and palettes from Procreate and Photoshop Works offline with no account, advertising or tracking Redraws strokes at any export size to maintain sharpness
Community votes	0	0
DR (Domain Rating by Ahrefs)	6 +1 (up) since last check	2 +1 (up) since last check
Trust Flow (Majestic)	3	0
Citation Flow (Majestic)	23	12
Referring domains (Majestic)	12	2

5 details filled in for both companies.

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