Sigma Private AI Browser
Private AI browser for Mac, Windows, and iPhone with built-in AI chat, agents, deep research, and local AI.
Recommended for
- Solo / Indie
- Pre-Seed
- Seed
SSIE
Stage Fit Recommendations
Following data shows why Sigma Private AI Browser is recommended for listed teams. The Fit Score represents the percentage fit of Sigma Private AI Browser to each company stages, as calculated by the SSIE.
Stage
Fit Score
Fit Reasons
Solo / Indie
$0–$2,000 MRR
92- AI agent navigates sites and completes web tasks
- Built-in ad blocker filters intrusive ads
- Browser connections use TLS 1.3 and HTTPS
- Free plan covers a solo founder at no cost
Pre-Seed
$0–$10k MRR
88- Install and manage Chromium browser extensions
- Generate images and write text in AI chat
- Separate work and personal browsing profiles
- Free plan covers about 2 users at no cost
Seed
$10k–$100k MRR
80- Download for macOS, Windows and iPhone
- Chat with pages and summarize web content
- Deep Research gathers and organizes web sources
- Free plan covers about 3 users at no cost
Description
Sigma Private AI Browser is a private artificial intelligence browser available for Mac, Windows, and iPhone. It combines private web browsing with built-in AI chat, an AI agent, deep research, image generation, and chat-with-page functionality. The browser includes support for local AI and uncensored AI interactions. It is part of the Atomic ecosystem, which also offers Atomic VPN, Atomic Chat, Atomic Mail, Atomic Bot, Atomic Wallet, and Atomic Agent. Sigma offers a free plan with limited access to AI features, a Plus plan at $8 per month billed annually, and a Pro plan at $60 per month billed annually. The Plus tier provides unlimited prompts, 50x more file uploads, 10x more web searches, and 20x more image generations than free. The Pro tier unlocks unlimited file uploads, web search, image generation, deep research, and AI agent usage. The browser is described as impressively light, packed with features, and fast by design.
Pricing
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Reviewed by a human. SSIE Fit Scoring.
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