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SigmaOS vs FocusFlow

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

Option A
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 →
Option B
FocusFlow

FocusFlow

Pro

Productivity

Deep work time-blocking for ambitious professionals

FocusFlow integrates with your calendar and task manager to automatically schedule deep work sessions. Beat distractions and finish what matters most.

Listing
Pro (do-follow)
Listed
May 2026
View FocusFlow →

See more alternatives

SigmaOS alternatives →FocusFlow alternatives →