Sider records 2,644,740 monthly visits with -10.6% month-over-month growth and Freemium pricing. Word Up records 1,903 monthly visits with -28.1% growth and Freemium pricing.
AI sidebar and browser agent for reading, writing and research
The AI keyboard assistant — communication elevated
| Dimension / Metric | | |
|---|---|---|
| Official Domain | sider.ai | trywordup.com |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 2.64M (2,644,740) | 1.9K (1,903) |
| MoM Traffic Delta | -314.2K (-10.6%) | -744 (-28.1%) |
| Primary Market & Share | 🇺🇸 United States (13.3%) | 🇻🇳 Vietnam (54.9%) |
| Direct Visits / mo | 1.7M | 736 |
| User Rating | 4.5 | 4.1 |
| 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.
The AI keyboard assistant — communication elevated
Translate your text between more than 50 languages without leaving the app you are typing in.
Fix spelling and grammar, and reshape your message's tone to be more professional, friendly or intelligent with a tap.
Use the Ask AI button to answer questions or generate fresh content in seconds, going beyond the built-in presets.
Generate hashtags, emojify text, summarise long messages, draft smart replies and pull in inspirational quotes.
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.
Cross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides.
Cross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides.
AI grammar, spelling and style checker for 30+ languages
AI grammar, spelling and style checker for 30+ languages
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.
Excels at advanced web automation and data extraction alongside chat, but has a steeper learning curve than Sider.
Express yourself with confidence — rewrite, proofread and summarize in one click
Express yourself with confidence — rewrite, proofread and summarize in one click
AI grammar checker and writing assistant for teams and professionals
AI grammar checker and writing assistant for teams and professionals
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.
