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SigmaOS vs Inkdrop

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
Inkdrop

Inkdrop

Productivity

Note-taking app with robust Markdown editor.

Inkdrop is a beautifully crafted Markdown notes app built by a solo Japanese developer who openly shares his MRR.

Founder
Takuya Matsuyama
Founded
2017
Team
1-10
Listing
Free (nofollow)
Listed
May 2026
View Inkdrop →

See more alternatives

SigmaOS alternatives →Inkdrop alternatives →