SigmaOS

A distraction-free, ad-free web browser optimized for macOS

Also known as
sigmaos

Available worldwide · Popular in: US

What is SigmaOS?

A macOS web browser focused on reducing digital distractions through ad-free browsing and streamlined navigation, built on WebKit for performance and privacy while supporting Chromium extensions.

Independently observed

SigmaOS pricing

Plans, per-tier features and add-ons, dated and linked to live pricing. Pricing changes often; always verify at source before you rely on it.

Pricing as of verify at live pricing ↗Independently observed
from $20/moHybridFree tier

Free tier; Pro at $20/month with 50% student/educator discount

Personal

Free
Free

Free forever with core browser features

  • Ad-free browsing
  • One-click navigation
  • Tab locking and renaming
  • Chromium extension support
  • RAM optimization
  • Intelligent Tracking Protection
  • WebKit security

Pro

$20/month (50% discount for students and educators)
monthly

Enhanced features with unlimited Airis usage

  • All Personal features
  • Unlimited Airis usage

Platform & deployment

Independently observed
Platforms
  • macOS

Integrations (4)

Independently observed
  • Grammarly
  • LastPass
  • Honey
  • Todoist

SigmaOS FAQ

Common questions about SigmaOS, answered from independent, dated evidence.

What is SigmaOS?

A macOS web browser focused on reducing digital distractions through ad-free browsing and streamlined navigation, built on WebKit for performance and privacy while supporting Chromium extensions. It is indexed under Browser Productivity.

Source: https://sigmaos.com

Is SigmaOS free?

SigmaOS offers a free tier, so you can start without paying. Paid plans start at $20 per month. Prices are published openly on the vendor's own pricing page. Pricing changes often, so verify at source before relying on it.

Source: https://sigmaos.com

What platforms does SigmaOS support?

SigmaOS supports macOS. Platforms we have not confirmed are simply not listed here rather than ruled out.

Source: https://sigmaos.com

What does SigmaOS integrate with?

We have confirmed 4 integrations for SigmaOS, including Grammarly, LastPass, Honey and Todoist. This is what we could verify from public sources, so the vendor may support others we have not indexed.

Source: https://sigmaos.com

Where is SigmaOS available?

SigmaOS is available worldwide. Its primary market is the United States.

Source: https://sigmaos.com

SigmaOS alternatives

Other browser productivity we track, ranked by the same independent score.

All SigmaOS alternatives, ranked →

Compare SigmaOS

Side by side against other browser productivity, attribute by attribute, with a source on every value.

Independent · unbought · dated

The vioscaleAI score: one lens on the evidence

Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for SigmaOS, not the verdict.

Balanced composite 58 / 100
low · 30%
Signal contributions to the composite score
SignalScoreWeightContributionEvidence
Pricing transparency1000.088.4✓
Price level500.052.6✓
Integrations200.051.0✓
Reliability00.060.0-
Capabilities00.040.0-
Security posture00.060.0-

Computed . Re-weight it by intent, or see the full method.

All data & sourcesshow ↓

Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.

Content

AttributeValueEvidence
Faq5 itemsmediumsource · 2026-09-10 · 58%

Integrations

AttributeValueEvidence
Count4mediumsource · 2026-08-18 · 60%

Market

AttributeValueEvidence
AvailabilityPrimaryMarkets: … · AvailabilityScope: global · AvailableCountries: … · NotAvailableCountries: …mediumsource · 2026-08-18 · 50%

Pricing

AttributeValueEvidence
Price levelmidmediumsource · 2026-08-18 · 60%
Starting priceAmount: 20 · Currency: USDmediumsource · 2026-08-18 · 60%
TransparentYesmediumsource · 2026-08-18 · 60%
Modelfreemiummediumsource · 2026-08-18 · 60%
Free tierYesmediumsource · 2026-08-18 · 60%
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For the makers of SigmaOS

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SigmaOS, verified on vioscaleAI
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Last updated . Canonical URI: https://www.vioscale.ai/software/sigmaos.