Start free. Pay for volume.
Every SEO tool on every plan, and AI visibility tracking on Pro and Max. Start free with 500 AI credits, no credit card.
Try everything on one site.
No credit card required
Takes 20 seconds
- 500 AI credits on signup
- 1 site
- Every SEO tool: audits, AI fixes, schema, API
- Free WordPress plugin
- One-click import from Yoast & Rank Math
For serious sites and freelancers.
One payment, yours forever — credits refresh every year
One-time payment · secure checkout
- 20,000 AI credits every year
- Up to 10 sites
- Everything in Free
- AI visibility and AEO monitors
- Hydrogen SEO Pro plugin + auto-updates
- Bulk AI meta for hundreds of posts
- Priority email support
For agencies and portfolios.
One payment, yours forever — credits refresh every year
One-time payment · secure checkout
- 50,000 AI credits every year
- Up to 500 sites
- Everything in Pro
- Built for agencies and portfolios
- Full REST API for client reporting
- Priority email support
Compare plans
Every SEO tool is on every plan. Paid plans add credits, sites, the Pro plugin and AI visibility.
| Free | Pro | Max | |
|---|---|---|---|
| Usage | |||
| AI credits | 500 once | 20,000 / year | 50,000 / year |
| Sites | 1 | 10 | 500 |
| Unused credits | Kept | Refresh yearly | Refresh yearly |
| Audit & fix | |||
| Page and bulk SEO audits | |||
| AI titles, meta and alt text | |||
| Schema generator | |||
| SERP preview and Core Web Vitals | |||
| Competitor comparison | |||
| AEO page analysis | |||
| AI visibility in ChatGPT, Perplexity, Gemini, Claude | |||
| AEO monitors with alerts | Up to 10 | Up to 10 | |
| WordPress | |||
| Free Hydrogen SEO plugin | |||
| Hydrogen SEO Pro plugin | |||
| Automatic Pro updates | |||
| Import from Yoast, Rank Math and more | |||
| Platform | |||
| REST API access | |||
| Support | Docs + email | Priority email | Priority email |
What a credit buys
500 free credits is roughly 250 AI-written titles and meta descriptions, or 500 image alt texts.
Pricing questions
Do I need a credit card for the free plan?
No. Sign up with an email and you get 500 AI credits and every SEO tool straight away. You only enter payment details if you choose to upgrade.
What do Pro and Max add?
Every SEO tool is on every plan, including Free: audits, AI fixes, schema, the REST API and AEO page analysis. Pro and Max add more credits, more sites, the Pro plugin, and AI visibility tracking with AEO monitors. Those ask ChatGPT, Perplexity, Gemini and Claude your questions with live web search, which costs real money per answer, so they come with the paid plans.
What does Lifetime mean?
Pay once and keep the plan for good: your yearly credit allowance keeps refreshing and your site limit stays, with no renewal.
What happens when I run out of credits?
Tools pause until you upgrade or your yearly allowance refreshes. Nothing is ever charged automatically.
Can I change plans later?
Yes. Upgrades apply immediately and your new credit allowance is available straight away.
Do credits work in the WordPress plugin and the API?
Yes. The dashboard, the WordPress plugin and the REST API all draw from the same credit balance with the same account key.
Start with 500 free credits
Every SEO tool, no credit card, set up in 20 seconds.