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Whimsical vs SigmaOS

Side-by-side comparison of two indie startups from the Startup Spotlight directory.

Option A
Whimsical

Whimsical

Productivity

Visual workspace for thinkers.

Whimsical combines flowcharts, wireframes, sticky notes, and mind maps into one delightful canvas, with deep keyboard shortcuts.

Founder
Steve Mudie
Founded
2017
Team
11-50
Listing
Free (nofollow)
Listed
May 2026
View Whimsical →
Option B
SigmaOS

SigmaOS

Productivity

The web is your operating system.

SigmaOS is an indie macOS browser built around workspaces and split-screen — a quieter Arc alternative from a small Berlin team.

Founder
Mahyad Ghassemibouyaghchi
Founded
2020
Team
1-10
Listing
Free (nofollow)
Listed
May 2026
View SigmaOS →

See more alternatives

Whimsical alternatives →SigmaOS alternatives →