Poly records 724 monthly visits with -71.5% month-over-month growth and Contact for Pricing pricing. Sider records 2,644,740 monthly visits with -10.6% growth and Freemium pricing.
A file browser that understands your files down to the pixel
AI sidebar and browser agent for reading, writing and research
| Dimension / Metric | | |
|---|---|---|
| Official Domain | withpoly.com | sider.ai |
| Pricing Model | Contact for Pricing | Freemium |
| Monthly Visits | 724 (724) | 2.64M (2,644,740) |
| MoM Traffic Delta | -1.82K (-71.5%) | -314.2K (-10.6%) |
| Primary Market & Share | 🇪🇸 Spain (81.7%) | 🇺🇸 United States (13.3%) |
| Direct Visits / mo | 295 | 1.7M |
| User Rating | 4.2 | 4.5 |
| Supported Platforms | Website | Website |
A file browser that understands your files down to the pixel
Find files by image, concept, phrase, color, face or content similarity, and search inside documents and media for the exact page, paragraph or clip.
Ask questions about your files and get answers, summaries and transcriptions, with long-context reading across thousands of files in one conversation.
Store, browse and organize files with Feed, Grid, Icon, Tree, Column and Gallery views, automatic tagging and full version history.
Access and sync Poly files through your local file system, with both web and desktop apps working offline until changes sync.
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.
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.
Offers a very similar browser sidebar experience with multiple AI models, but features slightly different pricing and workspace tools.
Offers a very similar browser sidebar experience with multiple AI models, but features slightly different pricing and workspace tools.
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.
The AI browser that reads between your tabs
One subscription, many AI models — chat, search, analyze files and links
One subscription, many AI models — chat, search, analyze files and links
Excels at advanced web automation and data extraction alongside chat, but has a steeper learning curve than Sider.
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.
Your files, notes and meetings in one drive — with an AI that knows all of it.
Your files, notes and meetings in one drive — with an AI that knows all of it.
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 Chromium-based AI browser that runs long internet tasks for you
A Chromium-based AI browser that runs long internet tasks for you
