Semrush vs Writesonic

Semrush

Semrush is still the broadest single subscription for anyone who needs competitor traffic estimates, keyword gaps, rank tracking and a site crawler in one login, and its 2026 plans fold AI-answer tracking into the same projects. It is priced for marketing teams and agencies: at $139 a month before extra users and add-ons, a solo site owner pays for a great deal they will never open, and the Adobe acquisition makes the roadmap and pricing a question for a much larger company.

Pros

• +Keyword, traffic-estimate and backlink databases are Semrush's own, with historical data back to 2012 on higher tiers
• +AI-visibility tracking (ChatGPT, AI Overviews, AI Mode) is in the same project as keyword rankings from the $199 Starter plan
• +An API, a Chrome extension and an official Claude connector let the data leave the dashboard
• +A $0 plan and a seven-day trial on paid tiers mean the interface can be judged before paying
• +Terms name a single Delaware entity at a Boston address and were updated in August 2026 after the Adobe deal

Cons

• −Every plan is single-user; each extra seat starts at $45 per month on top
• −Keyword and prompt caps (500 keywords on the $139 and $199 plans) run out quickly across several sites
• −Traffic figures are estimates from clickstream models, and the gap from real analytics can be wide on small sites
• −Now part of Adobe, so pricing, packaging and data-sharing terms may change with the parent's enterprise strategy

Writesonic

This is not the AI copywriter the catalogs still describe — it is a GEO tracking suite priced like one, and at $79 to start you are paying enterprise-monitoring money for a three-engine view of your own brand.

Pros

• +Daily prompt and answer tracking is the core of the product, not a bolt-on dashboard
• +Site audits, content generation and publishing sit in the same tool as the monitoring
• +A genuine free tier still exists, with no card required

Cons

• −Starter watches three engines out of ten; the interesting ones are all Enterprise
• −Month-to-month costs about 25% more than the advertised annual rate
• −The old writing-tool positioning is gone, so most third-party reviews describe a different product
• −Prompt and article caps are daily and monthly, so a burst of work stalls until the counter resets

Is Semrush cheaper than Writesonic?

On published entry prices, Writesonic starts lower — $79/mo against $139/mo for Semrush. Entry price is the lowest paid plan as we last verified it; what each plan includes differs.

Does Semrush or Writesonic have a free tier?

Both: Semrush has a free tier, and Writesonic has a free tier.

Which has a public API, Semrush or Writesonic?

Both ship a public API, so either can be built on; the fact table above shows the platforms each one runs on.