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SigmaOS vs Reeder

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
Reeder

Reeder

Productivity

The original RSS reader for Apple devices.

Reeder is the most-loved RSS reader for Mac and iOS — a 15-year solo project by Swiss developer Silvio Rizzi.

Founder
Silvio Rizzi
Founded
2009
Team
1-10
Listing
Free (nofollow)
Listed
May 2026
View Reeder →

See more alternatives

SigmaOS alternatives →Reeder alternatives →