Sider records 2,644,740 monthly visits with -10.6% month-over-month growth and Freemium pricing. SummifyAI records 380 monthly visits with -76.6% growth and Freemium pricing.
AI sidebar and browser agent for reading, writing and research
Summarize YouTube videos in seconds with custom prompts and timestamps
| Dimension / Metric | | |
|---|---|---|
| Official Domain | sider.ai | summifyai.com |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 2.64M (2,644,740) | 380 (380) |
| MoM Traffic Delta | -314.2K (-10.6%) | -1.25K (-76.6%) |
| Primary Market & Share | 🇺🇸 United States (13.3%) | 🇰🇭 Cambodia (60.7%) |
| Direct Visits / mo | 1.7M | 161 |
| User Rating | 4.5 | 4.3 |
| 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.
Summarize YouTube videos in seconds with custom prompts and timestamps
Get an overview of any YouTube video in about three seconds without watching the whole thing.
Pull insights from only the sections you care about and skip the rest of a long video.
Create and save knowledge-extraction templates, then reuse them on any video to pull the details you need every time.
Type a one-off question about a video and get an immediate answer drawn from its transcript.
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.
Highlight the web, learn in public, and build your AI clone
Highlight the web, learn in public, and build your AI clone
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.
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.
SpecialistSummarize any YouTube video into key ideas and timestamped notes in seconds.
SpecialistSummarize any YouTube video into key ideas and timestamped notes in seconds.
AI summaries that turn long YouTube videos into key ideas in seconds
AI summaries that turn long YouTube videos into key ideas in seconds
SpecialistTurn any YouTube video into a one-minute digest
SpecialistTurn any YouTube video into a one-minute digest
