Comet by Perplexity score factors
Editorial quality74
Practical utility76
Trust & transparency78
Freshness82
Engagement quality10
Momentum50
Decision guide · Reviewed Sep 23, 2026 · AI Assistants, AI Browser Extensions
Comet by Perplexity
69.6
Keywords Everywhere
77.5Choose Comet by Perplexity when you need users who want web search, multi-source synthesis, and proactive task delegation unified directly inside their primary browser. Choose Keywords Everywhere when you need marketers, creators, and online merchants looking for immediate keyword search volume, CPC metrics, and SERP insights right inside their browser and LLM prompts.
At a glance
The practical differences
| Decision factor | Comet by Perplexity | Keywords Everywhere |
|---|---|---|
| Best for | users who want web search, multi-source synthesis, and proactive task delegation unified directly inside their primary browser | marketers, creators, and online merchants looking for immediate keyword search volume, CPC metrics, and SERP insights right inside their browser and LLM prompts |
| Not ideal for | organisations needing locked-down legacy browser configurations or users who prefer browsing without integrated generative models | teams needing native Safari or mobile support, or enterprise marketers seeking automated technical site audit crawlers |
| Pricing | At the review date (September 2026), Comet is available as a direct download across desktop and mobile platforms, but the landing page does not detail specific subscription tiers or limits. Readers should check Perplexity's official pricing page for current terms. | At the review date (2026-09-08), basic browser features, link metrics, and AI prompts are free with no credit card required. Search volume, CPC, competition data, and historical trends require purchasing annual credit plans; specific pricing tiers are not detailed on the reviewed homepage and should be confirmed on the official pricing page. |
| Key difference | Unlike standard web browsers that require separate tabs or third-party extensions for AI, Comet integrates Perplexity's assistant directly into the core browsing environment across desktop and mobile. | Unlike standalone SEO suites that require separate web apps, it overlays search volume, competitor metrics, and AI prompts directly inside Google, YouTube, Amazon, and AI chat interfaces, complete with an MCP server connection for coding editors. |
| Overall rank | #628 | #142 |
| Review verdict | Comet suits knowledge workers, researchers, and students who want multi-source research and proactive task delegation directly integrated into their daily browser. It may not suit enterprise environments requiring strict legacy browser policies or users who prefer a minimal web client completely decoupled from AI services. | Keywords Everywhere suits SEO consultants, content creators, and e-commerce sellers who want ambient keyword volume and competitive data without opening a dedicated SEO dashboard. It is less suitable for users looking for automated site-wide crawls or those who conduct research exclusively in Safari or on mobile devices. |
Keywords Everywhere score factors
Editorial quality82
Practical utility86
Trust & transparency85
Freshness85
Engagement quality8
Momentum75
Comet by Perplexity strengths
- Native client availability across Mac, Windows, iOS, and Android.
- Integrated assistant eliminates the need for separate search tabs or browser add-ons.
- Broad task delegation scope covering research, scheduling, and draft generation.
Keywords Everywhere strengths
- Seamless in-browser workflow across Google, YouTube, Amazon, and social media platforms
- MCP server support allows integration with developer and AI tools like Cursor and VS Code
- Generous free tier including prompt libraries, traffic estimates, and Moz link metrics
- Transparent privacy model where keyword inputs are not stored beyond fetching metrics
Frequently asked
Comet by Perplexity vs Keywords Everywhere
Should I choose Comet by Perplexity or Keywords Everywhere?+
Choose Comet by Perplexity when you need users who want web search, multi-source synthesis, and proactive task delegation unified directly inside their primary browser. Choose Keywords Everywhere when you need marketers, creators, and online merchants looking for immediate keyword search volume, CPC metrics, and SERP insights right inside their browser and LLM prompts. ToolsRank scores Comet by Perplexity 69.6 and Keywords Everywhere 77.5; the gap reflects editorial quality, utility, trust, and freshness, not popularity or payment.
Is Comet by Perplexity cheaper than Keywords Everywhere?+
Comet by Perplexity: At the review date (September 2026), Comet is available as a direct download across desktop and mobile platforms, but the landing page does not detail specific subscription tiers or limits. Readers should check Perplexity's official pricing page for current terms. Keywords Everywhere: At the review date (2026-09-08), basic browser features, link metrics, and AI prompts are free with no credit card required. Search volume, CPC, competition data, and historical trends require purchasing annual credit plans; specific pricing tiers are not detailed on the reviewed homepage and should be confirmed on the official pricing page. Compare the plan you would actually use and verify current prices on each vendor's pricing page before purchasing.
Which is better for ai assistants?+
Keywords Everywhere currently scores higher for ai assistants work. Comet by Perplexity remains the stronger pick when your priority is users who want web search, multi-source synthesis, and proactive task delegation unified directly inside their primary browser. Avoid Keywords Everywhere if you are teams needing native Safari or mobile support, or enterprise marketers seeking automated technical site audit crawlers.
Can I use Comet by Perplexity and Keywords Everywhere together?+
Yes. Comet by Perplexity stands out for unlike standard web browsers that require separate tabs or third-party extensions for AI, Comet integrates Perplexity's assistant directly into the core browsing environment across desktop and mobile. Keywords Everywhere stands out for unlike standalone SEO suites that require separate web apps, it overlays search volume, competitor metrics, and AI prompts directly inside Google, YouTube, Amazon, and AI chat interfaces, complete with an MCP server connection for coding editors. Pairing them makes sense when one workflow needs both strengths; otherwise pick the tool that matches your primary job.