# Sider vs Ultra

Sider records 2,644,740 monthly visits with -10.6% month-over-month growth and Freemium pricing. Ultra records 0 monthly visits with — growth and Freemium pricing.

| Metric | [Sider](https://openaitools.app/tool/sider) | [Ultra](https://openaitools.app/tool/ultra) |
| :--- | :--- | :--- |
| Website URL | https://sider.ai | https://chromewebstore.google.com/detail/ultra/kpfjgpajjeadhkmchkhfpejnhkpeapei |
| Categories | AI Assistant, AI Chatbot, AI Writing Assistants, AI Reader | AI Productivity Tools, AI Prompt Generator, AI Email Assistant |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 2,644,740 | 0 |
| MoM Growth Rate | -10.6% | — |
| Primary Market | United States | Global |
| Direct Visits | 1,699,535 | 0 |
| Review Score | 4.5 | 4.3 |
| Saved Count | 31 | 1 |
| Supported Platforms | Website | Browser Extension |

## Sider

Sider's premise is that you should not have to leave the page you are reading to use an AI assistant. Its sidebar overlays the browser, detects the content in view, and responds with chat, summaries, translations or explanations using frontier models from multiple providers. The result is a lightweight research and reading workflow: highlight a paragraph, ask for a simpler explanation, translate a PDF and keep the original in sight.

Recent versions push Sider beyond chat. Sider Hand is a browser agent that works across real websites and uses your logged-in sessions to carry out multi-step jobs such as comparing prices while shopping, filling forms, doing cross-site research or triaging a Gmail inbox. Sider Code goes the other way, letting you instruct changes to a website's appearance or behaviour in plain language and preserving the customisation for next time. A Create module generates images, videos, slides and documents from the same panel.

Pricing moves from a limited free tier to credit-based paid plans aimed at heavier users. Lower plans suit occasional chat, summarisation and translation, while higher tiers add a dedicated cloud computer that keeps the browser agent running around the clock and a larger monthly credit allowance. Sider ships as browser extensions for Chrome and Edge plus desktop and mobile apps for macOS, Windows, iOS and Android, and is used by a very large installed base.

**Pricing & Plans:** Freemium. Free tier available with limited credits; paid plans advertised at roughly US$10/month for occasional use up to around US$100/month at the top tier, with higher credit allowances and a dedicated cloud computer on the upper plans.

- **AI sidebar on any page:** 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 and chat with documents:** Summarise long articles, PDFs and YouTube videos, extract key points, and ask detailed questions about the source material.
- **Translation and read-aloud:** Translate webpages, PDFs and images, compare bilingual output side by side, and have content read aloud for review on the move.
- **Sider Hand browser agent:** Delegate multi-step tasks across real websites — price comparison, form filling, research and inbox triage — using your existing logged-in sessions.
- **Sider Code page customisation:** Describe a change in plain words and have Sider restyle or simplify any website, remembering the modification for future visits.

**Strengths:** Works inside the browser you already use, with no context switching; Access to multiple frontier models from one subscription; Strong reading toolkit: PDF chat, YouTube summaries, translation and read-aloud; Increasingly capable agent features for multi-step browser tasks

**Limitations:** Useful credits run out quickly on the free and lower tiers; Model availability and quota rules change over time, so expectations must be checked per plan; Some agent and code features depend on a cloud machine and heavier plans

[Profile (Markdown)](https://openaitools.app/tool/sider.md)

## Ultra

Ultra is a Chrome extension designed for people who already use ChatGPT in the browser but keep running into the same friction: retyping prompts, losing track of useful answers, and being cut off by length limits. It layers a productivity toolkit on top of the ChatGPT web app, so you can build and store prompt templates, pin important chats, bookmark strong responses, and reuse your best prompts across sessions.

The extension goes beyond prompt management by connecting ChatGPT to the places where work actually lives. It integrates with Gmail for drafting email, with Google Sheets so you can run prompts across many cells at once, and with websites, local files, and YouTube so the model can summarize or interact with that content. A form builder lets power users construct structured prompt templates without hand-writing complex instructions.

Ultra is distributed through the Chrome Web Store and follows a freemium model with in-app purchases, so you can install it for free and unlock additional capability as needed. It is aimed at professionals, content creators, and everyday ChatGPT users who want more flexible, tailored AI conversations without leaving the browser tab they already use.

**Pricing & Plans:** Freemium. The extension is free to install and the listing states it offers in-app purchases for additional capabilities. Exact tiers and prices are shown inside the extension after installation.

- **Form-based prompt templates:** Build reusable prompt templates through an intuitive form interface, so complex instructions can be filled in quickly instead of retyped every time.
- **Custom prompt libraries:** Create and curate your own library of prompts, save any prompt you like, and pull it back up whenever you need it.
- **Pin chats and bookmark responses:** Pin important conversations and bookmark strong responses so useful answers stay easy to find instead of scrolling away in history.
- **Gmail and Google Sheets integrations:** Draft email from inside Gmail, and run prompts across multiple spreadsheet cells at once to apply AI at scale.
- **Website, file, and YouTube interaction:** Let ChatGPT browse and read websites, work with local files, and summarize or reason about YouTube videos.
- **Extended text length:** Run longer texts without being blocked by the usual token ceiling, enabling richer, more in-depth conversations.

**Strengths:** Layers a full productivity toolkit onto the ChatGPT interface you already use; Prompt libraries and template forms cut down on repeated typing; Integrations with Gmail, Google Sheets, files, sites, and YouTube cover many workflows; Runs in the browser as a normal Chrome extension with a clear Web Store listing

**Limitations:** Requires a ChatGPT account and works through the ChatGPT web app rather than as a standalone AI service; Some features are gated behind in-app purchases, and exact pricing is only shown in the extension; Installing browser extensions adds another component onto an already busy ChatGPT interface

[Profile (Markdown)](https://openaitools.app/tool/ultra.md)

## Frequently Asked Questions

### How do Sider and Ultra compare in monthly traffic?

Sider has 2,644,740 monthly visits, while Ultra has 0. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

Sider has a month-over-month growth rate of -10.6%; Ultra has —.

### How does pricing compare?

Sider: Freemium. Freemium. Free tier available with limited credits; paid plans advertised at roughly US$10/month for occasional use up to around US$100/month at the top tier, with higher credit allowances and a dedicated cloud computer on the upper plans. Ultra: Freemium. Freemium. The extension is free to install and the listing states it offers in-app purchases for additional capabilities. Exact tiers and prices are shown inside the extension after installation.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [ChatGPT](https://openaitools.app/tool/chatgpt-4) | 6,048,022,723 | +2.2% | Freemium | OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research. | [.md](https://openaitools.app/tool/chatgpt-4.md) |
| 2 | [Claude](https://openaitools.app/tool/claude-2) | 1,253,439,413 | +23.8% | Freemium | Anthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing. | [.md](https://openaitools.app/tool/claude-2.md) |
| 3 | [Monica](https://openaitools.app/tool/monica-ai) | 4,512,775 | -11.3% | Freemium | Offers a very similar browser sidebar experience with multiple AI models, but features slightly different pricing and workspace tools. | [.md](https://openaitools.app/tool/monica-ai.md) |
| 4 | [Merlin AI](https://openaitools.app/tool/merlin-ai) | 1,382,634 | +13.1% | Freemium | Provides robust browser-based summarization and prompt assistance, but lacks some of Sider's deeply integrated multi-model chat UI features. | [.md](https://openaitools.app/tool/merlin-ai.md) |
| 5 | [AIPRM](https://openaitools.app/tool/aiprm) | 708,870 | -6.9% | Freemium, Paid | A prompt library and management layer for ChatGPT and other AI models | [.md](https://openaitools.app/tool/aiprm.md) |
| 6 | [HARPA AI](https://openaitools.app/tool/harpa-ai) | 537,461 | +99.3% | Freemium | One browser agent that combines every major AI model with web automation | [.md](https://openaitools.app/tool/harpa-ai.md) |
| 7 | [GPT Workspace](https://openaitools.app/tool/gpt-workspace-1) | 431,507 | +43.8% | Freemium, Free Trial, Paid | Bring ChatGPT, Claude and Gemini into Google Docs, Sheets, Slides and Gmail | [.md](https://openaitools.app/tool/gpt-workspace-1.md) |
| 8 | [AI Toolbox](https://openaitools.app/tool/chatgpt-toolbox) | 290,140 | +16.9% | Freemium | Organize, search and export your AI chats across ChatGPT, Gemini, Claude and Grok | [.md](https://openaitools.app/tool/chatgpt-toolbox.md) |
| 9 | [Glarity](https://openaitools.app/tool/glarity-summarize-google-and-youtube) | 188,823 | -49.6% | Freemium | Summarize YouTube, Google, and any page with AI — free in your browser | [.md](https://openaitools.app/tool/glarity-summarize-google-and-youtube.md) |
| 10 | [Kome AI](https://openaitools.app/tool/kome-ai) | 174,910 | -6.5% | Freemium | Integrates bookmark management and content composition into a clean sidebar, but has a more limited feature set than Sider. | [.md](https://openaitools.app/tool/kome-ai.md) |

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Source: https://openaitools.app/compare/sider-vs-ultra

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