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.
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.
Free tier; Pro at $20/month with 50% student/educator discount
Personal
FreeFree 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
Enhanced features with unlimited Airis usage
- All Personal features
- Unlimited Airis usage
Platform & deployment
Independently observed- macOS
Integrations (4)
Independently observed- Grammarly
- LastPass
- Honey
- Todoist
SigmaOS alternatives
Other browser productivity we track, ranked by the same independent score.
- WaveboxA Chromium-based browser for managing multiple accounts and streamlining team workflowslow · 26%
- Opera GXA customizable browser designed for gaming and entertainment with built-in personalization and content features.low · 26%
- ShiftA customizable desktop browser designed for organizing your workflow and protecting your privacylow · 18%
- OrionA privacy-first web browser combining WebKit performance with broad extension supportlow · 9%
- ArcA privacy-first Chromium-based browser designed as a modern Chrome alternativelow · 31%
- BraveA privacy-focused web browser that blocks ads, trackers, and improves page performancelow · 25%
Compare SigmaOS
Side by side against other browser productivity, attribute by attribute, with a source on every value.
The Vioscale 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.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Pricing transparency | 100 | 0.08 | 8.4 | ✓ |
| Price level | 50 | 0.05 | 2.6 | ✓ |
| Integrations | 20 | 0.04 | 0.8 | ✓ |
| Reliability | 0 | 0.07 | 0.0 | - |
| Capabilities | 0 | 0.05 | 0.0 | - |
| Security posture | 0 | 0.07 | 0.0 | - |
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.