# Astro (PwC) vs Sider

Astro (PwC) records 0 monthly visits with — month-over-month growth and Free (internal PwC tool, no public pricing) pricing. Sider records 2,644,740 monthly visits with -10.6% growth and Freemium pricing.

| Metric | [Astro (PwC)](https://openaitools.app/tool/astro) | [Sider](https://openaitools.app/tool/sider) |
| :--- | :--- | :--- |
| Website URL | https://chromewebstore.google.com/detail/astro/keibmolmaeiahiahfgenlaidmokmfcfm | https://sider.ai |
| Categories | AI Assistant, AI Productivity Tools, AI Voice Assistants, AI Task Management | AI Assistant, AI Chatbot, AI Writing Assistants, AI Reader |
| Pricing Model | Free (internal PwC tool, no public pricing) | Freemium |
| Monthly Visits | 0 | 2,644,740 |
| MoM Growth Rate | — | -10.6% |
| Primary Market | Global | United States |
| Direct Visits | 0 | 1,699,535 |
| Review Score | 4.3 | 4.5 |
| Saved Count | 1 | 31 |
| Supported Platforms | Browser Extension | Website |

## Astro (PwC)

Astro is an AI assistant built by PwC for its own people. Rather than a general-purpose chatbot, it acts as an executive concierge embedded in a professional-services environment: it links into the firm's internal systems and answers work-specific questions or performs routine tasks on request.

Interaction is deliberately frictionless. You can type or speak a natural-language request — on desktop or phone — and Astro responds. Typical prompts cover scheduling, time entry, benefits lookups, goal progress and client-relationship intelligence, all using the same conversational interface.

The extension is distributed through the Chrome Web Store and lists more than 200,000 users, which reflects widescale internal deployment at the firm. It is intended for PwC personnel, so its usefulness outside that organization is limited; broader availability of the underlying technology is not advertised.

**Pricing & Plans:** Not publicly priced. Astro is an internal PwC tool distributed to the firm's personnel, so no consumer or per-seat pricing is published on the Chrome Web Store listing.

- **Voice and text requests:** Ask questions or give instructions in plain language by typing or speaking, on desktop or mobile.
- **Firm system integration:** Connects to internal PwC systems so answers and actions reflect real employee data.
- **Day and calendar management:** Check upcoming meetings and stay on top of your schedule with a single question.
- **Time, benefits and goals:** Enter time, look up vacation balances and review progress against revenue goals.
- **Client relationship insights:** Surface who inside the firm has the strongest relationship with a given client.

**Strengths:** Conversational voice and text interface reduces clicks for routine admin tasks; Tight integration with firm systems means answers are grounded in real internal data; Works across desktop and mobile for on-the-go access; Widely deployed, with more than 200,000 users on the Chrome Web Store

**Limitations:** Restricted to PwC personnel, so it is not a general public product; No public pricing or self-serve sign-up for outsiders; Only available in English and limited to the firm's own data sources

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

## 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)

## Frequently Asked Questions

### How do Astro (PwC) and Sider compare in monthly traffic?

Astro (PwC) has 0 monthly visits, while Sider has 2,644,740. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

Astro (PwC) has a month-over-month growth rate of —; Sider has -10.6%.

### How does pricing compare?

Astro (PwC): Free (internal PwC tool, no public pricing). Not publicly priced. Astro is an internal PwC tool distributed to the firm's personnel, so no consumer or per-seat pricing is published on the Chrome Web Store listing. 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.

## 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 | [Sider](https://openaitools.app/tool/sider-ai-extension) | 2,644,740 | -10.6% | Freemium | Your AI agent for the browser: chat, automate and create from one sidebar | [.md](https://openaitools.app/tool/sider-ai-extension.md) |
| 5 | [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) |
| 6 | [HARPA AI](https://openaitools.app/tool/harpa-ai) | 537,461 | +99.3% | Freemium | Excels at advanced web automation and data extraction alongside chat, but has a steeper learning curve than Sider. | [.md](https://openaitools.app/tool/harpa-ai.md) |
| 7 | [Motion](https://openaitools.app/tool/usemotion-com) | 511,886 | -15.5% | Free Trial, Paid | The AI super app for work — tasks, projects, calendar and meetings in one place | [.md](https://openaitools.app/tool/usemotion-com.md) |
| 8 | [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) |
| 9 | [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) |
| 10 | [Moveworks](https://openaitools.app/tool/moveworks) | 168,527 | -4.3% | Contact for Pricing | Agentic AI assistant that resolves employee requests end-to-end | [.md](https://openaitools.app/tool/moveworks.md) |

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

More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)