# SigmaOS

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

- **Canonical URI:** https://www.vioscale.ai/software/sigmaos
- **Category:** Browser Productivity
- **Homepage:** https://sigmaos.com
- **Also known as:** sigmaos
- **Profile claimed by vendor:** no
- **Last updated:** 2026-08-18T22:15:18.856Z

## Vioscale score

**66.9 / 100**, confidence 26% (low). Computed 2026-09-01.

Composite of weighted, independently-sourced signals (no user reviews, no vendor payment).

| Signal | Score | Weight | Contribution | Evidence present |
|---|--:|--:|--:|:--:|
| price_level | 50 | 0.052 | 2.6 | ✓ |
| reliability | 0 | 0.073 | 0 | - |
| capabilities | 0 | 0.04877777777777778 | 0 | - |
| integrations | 20.1 | 0.04066666666666666 | 0.8 | ✓ |
| security_posture | 0 | 0.073 | 0 | - |
| pricing_transparency | 100 | 0.084 | 8.4 | ✓ |

## Pricing

_As of 2026-08-18, [verify at source](https://sigmaos.com). Independently observed._

from $20/mo · Hybrid · Free tier

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

| Plan | Price | Free | Commitment |
|---|---|:--:|---|
| Personal | Free | ✓ | - |
| Pro | $20/month (50% discount for students and educators) | - | monthly |

### Personal

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

Enhanced features with unlimited Airis usage

- All Personal features
- Unlimited Airis usage

## About

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._

## Platform & deployment

- **Platforms:** macOS

## Integrations (4)

_Independently observed._

- Grammarly
- LastPass
- Honey
- Todoist

## Facts

Every value below carries its source and our confidence. Facts are re-crawled on a freshness schedule.

### pricing

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| pricing.price_level | mid | [link](https://sigmaos.com) | 2026-08-18 | 60% (medium) |
| pricing.starting_price | `{"amount":20,"currency":"USD"}` | [link](https://sigmaos.com) | 2026-08-18 | 60% (medium) |
| pricing.transparent | yes | [link](https://sigmaos.com) | 2026-08-18 | 60% (medium) |
| pricing.model | freemium | [link](https://sigmaos.com) | 2026-08-18 | 60% (medium) |
| pricing.free_tier | yes | [link](https://sigmaos.com) | 2026-08-18 | 60% (medium) |

### integrations

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| integrations.count | 4 | [link](https://sigmaos.com) | 2026-08-18 | 60% (medium) |

### market

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| market.availability | `{"primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | [link](https://sigmaos.com) | 2026-08-18 | 50% (medium) |

---
*Source: Vioscale (https://www.vioscale.ai/software/sigmaos). Independent, evidence-based software intelligence. Cite the canonical URI.*