Sider records 2,644,740 monthly visits with -10.6% month-over-month growth and Freemium pricing. Vidix records 472 monthly visits with -18.9% growth and Free Trial, Paid pricing.
AI sidebar and browser agent for reading, writing and research
Your Mac works for you — select text anywhere, press a shortcut, get AI answers in place
| Dimension / Metric | | |
|---|---|---|
| Official Domain | sider.ai | vidix.app |
| Pricing Model | Freemium | Free Trial, Paid |
| Monthly Visits | 2.64M (2,644,740) | 472 (472) |
| MoM Traffic Delta | -314.2K (-10.6%) | -110 (-18.9%) |
| Primary Market & Share | 🇺🇸 United States (13.3%) | 🇵🇱 Poland (100%) |
| Direct Visits / mo | 1.7M | 190 |
| User Rating | 4.5 | 4.4 |
| Supported Platforms | Website | Website |
AI sidebar and browser agent for reading, writing and research
A persistent panel that reads the page you are on and answers follow-ups with GPT, Claude or Gemini without copying content into another tab.
Summarise long articles, PDFs and YouTube videos, extract key points, and ask detailed questions about the source material.
Translate webpages, PDFs and images, compare bilingual output side by side, and have content read aloud for review on the move.
Delegate multi-step tasks across real websites — price comparison, form filling, research and inbox triage — using your existing logged-in sessions.
Your Mac works for you — select text anywhere, press a shortcut, get AI answers in place
Highlight text in Mail, Slack, Notes, browsers or a code editor, press ⌘⇧K, and Vidix sends the context to your chosen model and inserts the answer in place — no copy/paste or app switching.
Open the palette to search recipes, prompts and agents with arrow keys and Enter, so you can trigger an AI action without leaving the app you are working in.
A Markdown buffer sits between the model and your document so you can iterate with follow-ups like "make it shorter" or "make it legal" before confirming insertion with ⌘⏎.
Chain multiple AI steps into a saved workflow — for example security analysis, performance review, test coverage and documentation steps followed by a summary.
SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.
SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.
All-in-one AI assistant across web, browser, desktop and mobile
All-in-one AI assistant across web, browser, desktop and mobile
Free / Open-sourceOpen-source personal AI assistant that runs on your own machine and works from chat apps
Free / Open-sourceOpen-source personal AI assistant that runs on your own machine and works from chat apps
Provides robust browser-based summarization and prompt assistance, but lacks some of Sider's deeply integrated multi-model chat UI features.
Provides robust browser-based summarization and prompt assistance, but lacks some of Sider's deeply integrated multi-model chat UI features.
An extendable launcher that puts your tools, AI, and automations one keystroke away
An extendable launcher that puts your tools, AI, and automations one keystroke away
One browser agent that combines every major AI model with web automation
An AI buddy on your computer that sees your screen and walks you through anything
An AI buddy on your computer that sees your screen and walks you through anything
Free / Open-sourceSummarize YouTube, Google, and any page with AI — free in your browser
Free / Open-sourceSummarize YouTube, Google, and any page with AI — free in your browser
Integrates bookmark management and content composition into a clean sidebar, but has a more limited feature set than Sider.
Integrates bookmark management and content composition into a clean sidebar, but has a more limited feature set than Sider.
Delivers streamlined inline writing and webpage summarization via a browser extension, but with fewer custom sidebar tools.
Delivers streamlined inline writing and webpage summarization via a browser extension, but with fewer custom sidebar tools.
A Mac browser built for focus, with an AI companion called Airis
A Mac browser built for focus, with an AI companion called Airis
