Semrush’s entry-level SEO plan costs EUR 112.52/month, while Writesonic’s cheapest monthly Starter tier is $79/month. This isn't just a feature gap; it's a currency barrier that makes direct comparison tricky. Semrush’s pricing page is region-priced in euros, whereas Writesonic lists everything in dollars. For a solo user, this means you are choosing between a European-priced analytics suite and a US-priced AI content tool, with no easy way to convert the bills in your head without doing the math yourself.
The euro vs dollar trap
| Vendor | Plan | Price | Key Limitations/Features |
|---|---|---|---|
| Semrush | SEO | EUR 112.52/month | 5 websites, 500 keywords daily, basic competitor analysis |
| Semrush | Advanced | EUR 436.99/month | 40 websites, 5,000 keywords daily, SEO share of voice |
| Writesonic | Starter (Monthly) | $79/month | 50 prompts, 50 answers tracked daily, ads monitoring |
| Writesonic | Team | $50/month per user | Collaborative workspace, included users, custom settings |
Semrush structures its costs around data volume. The jump from the SEO plan to the Advanced tier is steep, moving from 500 to 5,000 keywords tracked daily. Every tier is locked to a specific number of websites, meaning if you manage more than 40 sites, you are out of scope for the listed plans. The Additional Users add-on at EUR 43/month is a flat fee that allows you to add colleagues to your account, but it doesn't increase your keyword or site caps. Writesonic, in contrast, separates its AI tracking from its content creation. The Starter, Basic, and Growth plans focus on tracking AI search results and ads, while the Content plan at $100/month is a separate line item for creating SEO-optimized copy. This modular approach means you can pay for just the AI tracking or just the content generation, but you have to stack them to get a full workflow.
The Team plan at $50/month per user is where Writesonic diverges significantly from Semrush’s model. Instead of a flat fee for extra users, Writesonic charges per seat, which scales linearly with your team size. For a small agency, this could be cheaper than Semrush’s flat EUR 43/month add-on if you have fewer than two additional users, but it becomes more expensive as you grow. Semrush’s model is more predictable for larger teams where you need to add many users without a per-seat price hike, whereas Writesonic’s per-user model is better for smaller, tight-knit groups who want to control costs by limiting access.
Solo marketers who need deep keyword data should look at Semrush’s SEO plan, accepting the EUR 112.52/month cost and the 500-keyword limit. If you are a content creator who needs AI-generated drafts and wants to track how your content performs in AI search results, Writesonic’s Starter plan at $79/month is the lower entry point, but you’ll need to add the Content plan to actually generate copy. Teams that prioritize collaboration and AI-first workflows will find the $50/month per user Team plan more flexible than Semrush’s flat user add-on, provided they don’t need the granular historical data that Semrush offers. Pricing verified on 2026-09-21.