Google Keyword Planner vs Rank Math
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Google Keyword Planner is the stronger AI pick in SEO Tools: it has a visibility score of 2.2 versus 0.4 for Rank Math.
Choose Google Keyword Planner if…
- You want the brand AI engines rank higher (2.2 vs 0.4)
- You need ISO/IEC 27001:2022 covering Google Ads coverage
- You prefer a larger, established vendor (5,000+ employees)
- free keyword research tool
Choose Rank Math if…
No clear advantage in the published data.
AI visibility side by side
Latest weekly run · Nov 2
| Metric | Google Keyword Planner | Rank Math |
|---|---|---|
| Visibility score | 2.2% | 0.4% |
| Change vs last week | New | New |
| Rank in SEO Tools | #26 | #42 |
| Share of voice | 0.5% | 0.2% |
| Mentions this run | 3 | 1 |
| Positive in AI answers | 0% | — |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Google Keyword Planner 0pp · Rank Math 0pp over 0 weekly runs.
Engine by engine
Google Keyword Planner leads on 2 of 3 engines
Head to head in AI answers
0 engine answers name both brands
Features, pricing & fit
| Dimension | Google Keyword Planner | Rank Math |
|---|---|---|
| Pricing model | — | Flat tiers |
| Entry price | — | $8.99 / mo |
| Free plan | — | No |
| Deployment | Web tool accessed inside the Google Ads interface, with no separate installation. | WordPress plugin |
| Compliance | ISO/IEC 27001:2022 covering Google Ads | — |
| Support | — | 24/7 support, 24/7 priority support on the Agency plan |
| Founded | — | 2020 |
| Headquarters | 1600 Amphitheatre Pkwy, Mountain View, California | Gurugram, India |
| Employees | 5,000+ | 11–50 |
| Funding | — | M&A Offer |
| Best for | Advertisers and marketers who run Google Ads and want free keyword research and volume data. | WordPress site owners, freelancers and agencies that want on-page SEO, schema and AI search visibility in one plugin |
Plans side by side
Google Keyword Planner
Pricing not available.
Rank Math
Pros and cons
Themes from the AI answers that mention each brand
Google Keyword Planner
- free keyword research tool
- keyword ideas and search-volume data
- requires a Google Ads account
Rank Math
Profile in progress.
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “Google Keyword Planner vs Rank Math”, https://slateindex.ai/compare/google-keyword-planner-vs-rank-math, data of Nov 2, 2026. Licence: CC BY 4.0.