Fillout records 3,923,917 monthly visits with -9.7% month-over-month growth and Freemium pricing. Sider records 2,644,740 monthly visits with -10.6% growth and Freemium pricing.
Build powerful forms, surveys and quizzes with AI in minutes
AI sidebar and browser agent for reading, writing and research
| Dimension / Metric | ||
|---|---|---|
| Official Domain | fillout.com | sider.ai |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 3.92M (3,923,917) | 2.64M (2,644,740) |
| MoM Traffic Delta | -423.16K (-9.7%) | -314.2K (-10.6%) |
| Primary Market & Share | 🇺🇸 United States (38.6%) | 🇺🇸 United States (13.3%) |
| Direct Visits / mo | 2.31M | 1.7M |
| User Rating | 4.4 | 4.5 |
| Supported Platforms | Website | Website |
Build powerful forms, surveys and quizzes with AI in minutes
Describe the form you need in plain language and Zite generates a branded form with logic, file uploads, and payments.
Add conditional logic, intelligent routing, and multi-step workflows to automate what happens after each response.
Respondents can log in to update their answers, and forms can be restricted to internal users only.
Use custom themes, fonts, logos, custom CSS, your own domain, and embed forms as popups, sliders, or full-screen pages.
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.
Broader template library and multi-channel sharing features, but less flexible multi-page layout customization than Fillout.
Excels at advanced web automation and data extraction alongside chat, but has a steeper learning curve than Sider.
SpecialistSuperior privacy-first encryption and secure data handling, but more restrictive workflow automation and styling capabilities.
SpecialistSuperior privacy-first encryption and secure data handling, but more restrictive workflow automation and styling capabilities.
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.
Faster AI form generation with built-in logic, but fewer advanced database integration and multi-page routing features.
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.
SpecialistAI quiz, poll and survey builder that turns traffic into leads
SpecialistAI quiz, poll and survey builder that turns traffic into leads
