Freedom251 › AI chatbots and assistants
Sider
by Sider
What Sider is
Sider is an AI sidebar and browser agent available on Android, iOS, macOS, Windows, the web, and as a browser extension. Chat can summarize, explain, or translate webpages, PDFs, and YouTube content, then answer follow-up questions with models including GPT, Claude, and Gemini. Hand researches, compares, extracts, and organizes information across websites, including logged-in pages, and can triage a Gmail inbox. Code changes webpages from plain-language instructions and remembers those changes for later visits. Create generates images and videos and makes slides and documents. Sider also supports web search, file uploads, mobile apps, and app integrations. Windows features include multi-model group chat, reusable prompts, real-time web access, file analysis, media creation, and translation. On iOS, ChatScreen discusses visible content and supports images plus more than 30 file types. All plans include all features; higher plans provide more credits and a stronger cloud computer. Content needed for AI requests passes through Sider's servers to the selected provider, with explicit consent requested on iOS.
Who it suits
Sider suits people who want AI help while browsing, researching, creating, or working with files across devices. It also fits users seeking webpage customization and multi-model conversations.
What it does well
- Works across major platforms
- Summarizes webpages, PDFs, and videos
- Automates browser research tasks
- Creates images, videos, slides, and documents
- Free plan available
What to know first
- AI-request content passes through Sider servers
- Services are not designed for HIPAA or FISMA compliance
- Higher plans provide more credits rather than different features
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Sider Basic | — | On request |
| Sider Professional | — | On request |
| Sider Ultra | — | On request |
As sider.ai lists them, read 21 Sept 2026. The maker's own page has the final word.
Verdict
Sider combines browser assistance, automation, content creation, and multi-model chat across desktop, mobile, and web platforms. Its free plan and broad tools are balanced by third-party processing and undisclosed plan pricing.
Facts from Sider's own pages
- Browser automation
- Sider Hand can research, compare, extract, and organize information across websites, including sites where the user is logged in. · sider.ai, 11 Oct 2026
- Chat
- Sider Chat can summarize, explain, and translate webpage, PDF, and YouTube content, and answer follow-up questions using models including GPT, Claude, and Gemini. · sider.ai, 11 Oct 2026
- Company
- Sider’s terms identify Vidline Inc. as the company operating the service and give an address in Medford, Massachusetts. · sider.ai, 11 Oct 2026
- Creation
- Sider Create supports generating images and videos and creating slides and documents. · sider.ai, 11 Oct 2026
- Desktop features
- The Windows app page lists multi-model group chat, reusable prompts, real-time web access, file analysis, image and video creation, and translation. · sider.ai, 11 Oct 2026
- File uploads
- Yes · sider.ai, 21 Sept 2026
- Free plan
- Yes · sider.ai, 21 Sept 2026
- Headquarters
- Boston, Massachusetts, United States · sider.ai, 28 Sept 2026
- Image generation
- Yes · sider.ai, 21 Sept 2026
- Integrations
- Sider lists GPT, Claude, Gemini, and Grok among its chat models, and says Hand can triage a Gmail inbox. · sider.ai, 11 Oct 2026
- Mobile apps
- Yes · sider.ai, 21 Sept 2026
- Mobile features
- Sider’s iOS page describes ChatScreen for discussing on-screen content and support for images and more than 30 file types. · sider.ai, 11 Oct 2026
- Plans
- The pricing page says all plans include all features and that higher plans provide more credits and a stronger cloud computer; it does not expose plan names or prices in the page text. · sider.ai, 11 Oct 2026
- Platforms
- Sider lists a web app, browser extensions, iOS and Android apps, and Windows and macOS desktop apps. · sider.ai, 11 Oct 2026
- Privacy and AI processing
- Sider’s privacy policy says content needed for AI requests is sent through Sider’s servers to the selected third-party AI provider; the iOS app asks for explicit consent before sending it. · sider.ai, 11 Oct 2026
- Product
- Sider describes itself as an AI sidebar and agent for browser tasks, with Chat, Hand, Code, and Create tools. · sider.ai, 11 Oct 2026
- Security and compliance
- The privacy policy describes safeguards including firewalls, encryption, and access controls, while the terms say the services are not designed for HIPAA or FISMA compliance. · sider.ai, 11 Oct 2026
- Support
- The Help Center offers searchable FAQs and says users can submit feedback to customer service for support. · sider.ai, 11 Oct 2026
- Web customization
- Sider Code can change a webpage from plain-language instructions and remember those changes for future visits. · sider.ai, 11 Oct 2026
- Web search
- Yes · sider.ai, 21 Sept 2026
Where Sider stands on Freedom251
- AI chatbots and assistants#16 of 65