Mailchimp records 10,071,636 monthly visits with +1.1% month-over-month growth and Freemium pricing. Sider records 2,644,740 monthly visits with -10.6% growth and Freemium pricing.
AI-assisted email and SMS marketing that turns audiences into customers
AI sidebar and browser agent for reading, writing and research
| Dimension / Metric | ||
|---|---|---|
| Official Domain | mailchi.mp | sider.ai |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 10.07M (10,071,636) | 2.64M (2,644,740) |
| MoM Traffic Delta | +105.62K (+1.1%) | -314.2K (-10.6%) |
| Primary Market & Share | 🇺🇸 United States (54%) | 🇺🇸 United States (13.3%) |
| Direct Visits / mo | 5.77M | 1.7M |
| User Rating | 4.4 | 4.5 |
| Supported Platforms | Website | Website |
AI-assisted email and SMS marketing that turns audiences into customers
Drag-and-drop templates, reusable layouts, and guided steps to design and send newsletters or promotional emails without a designer.
Build automated journeys triggered by signups, purchases, birthdays, or inactivity, including welcome and abandoned-cart series.
Generate draft copy and subject lines, and use data-driven send-time suggestions to improve engagement.
Tag, segment, and filter contacts, and track engagement history in a searchable audience database.
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.
Provides deeper e-commerce data integration and advanced segmentation, but steeper learning curve than Mailchimp.
Provides deeper e-commerce data integration and advanced segmentation, but steeper learning curve than Mailchimp.
Offers robust multi-channel marketing and transactional emails, but with simpler CRM workflows than Mailchimp.
Offers robust multi-channel marketing and transactional emails, but with simpler CRM workflows than Mailchimp.
Features a cleaner, more intuitive drag-and-drop editor, but fewer advanced enterprise automation features.
Features a cleaner, more intuitive drag-and-drop editor, but fewer advanced enterprise automation features.
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.
Includes built-in landing page builders and webinars, but interface feels busier than Mailchimp.
Includes built-in landing page builders and webinars, but interface feels busier than Mailchimp.
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.
SpecialistSpecializes in cold email outreach and deliverability infrastructure rather than inbound newsletter marketing.
SpecialistSpecializes in cold email outreach and deliverability infrastructure rather than inbound newsletter marketing.
Excels at advanced web automation and data extraction alongside chat, but has a steeper learning curve than Sider.
Delivers vastly more powerful CRM and complex automation workflows, but less beginner-friendly interface.
Delivers vastly more powerful CRM and complex automation workflows, but less beginner-friendly interface.
SpecialistExcels at generating enterprise-grade on-brand marketing content, but lacks native email delivery infrastructure.
SpecialistExcels at generating enterprise-grade on-brand marketing content, but lacks native email delivery infrastructure.
