Semrush vs Writesonic
Updated Jul 15, 2026 · pricing verified for both tools
Semrush and Writesonic both track AI-search visibility but sit at different scales: Semrush is a full SEO and marketing suite with a 28-billion-keyword database (Pro $117.33/mo annual), while Writesonic pairs AI writing with GEO tracking across 10 AI engines from $79/mo. Pick Semrush for deep keyword, backlink, and competitive research; pick Writesonic for content production plus AI-search monitoring on a smaller budget. Neither has a free tier — both offer 7-day trials.
- Semrush starts at
- $117.33/mo
- Writesonic starts at
- $79/mo
- Semrush free tier
- No
- Writesonic free tier
- No
Both prices were verified against the official pricing pages on Jun 11, 2026.
Side by side
| Dimension | Semrush | Writesonic |
|---|---|---|
| Pricing | No free tier; Pro $139.95/mo ($117.33 annual); Business $499.95 | ✓ No free tier; Starter $79/mo; Basic $199; Growth $399 |
| Free tier | None — 7-day trial only | None — 7-day trial, no credit card |
| SEO depth | ✓ 28B keywords, 43T backlinks, site audits, competitor research | Basic site audits; not a backlink or keyword research tool |
| AI content writing | Content Marketing Toolkit (Guru+); not a core writer | ✓ AI Article Writer plus 80+ templates — the core product |
| AI-search (GEO) tracking | AI Visibility toolkit; 261M+ monitored prompts (Semrush One from $199) | Tracks 10 AI engines; 2B+ AI-conversation dataset |
| API access | API on the Business plan ($499.95/mo) | ✓ API plus MCP support |
| Platforms | Web and API | Web and API |
Pricing, verified
Semrush
PAID| Plan | Price |
|---|---|
| SEO Classic Pro | $139.95/mo |
| SEO Classic Pro (annual) | $117.33/mo |
| SEO Classic Guru | $249.95/mo |
| SEO Classic Business | $499.95/mo |
| Semrush One Starter | $199/mo |
| Semrush One Pro+ | $299/mo |
| Semrush One Advanced | $549/mo |
Writesonic
PAID| Plan | Price |
|---|---|
| Free Trial | Free |
| Starter | $79/mo |
| Basic | $199/mo |
| Growth | $399/mo |
| Enterprise | Custom |
When to pick Semrush
- SEO research is the core need — a 28-billion-keyword database and 43-trillion-backlink index power keyword gaps, technical audits, and competitor benchmarking at scale.
- You manage many projects or clients: the Guru (15 projects) and Business (40 projects, API) plans map to an agency roster with white-label reporting available.
- You want one platform across channels — organic search, paid ads, social scheduling, and AI Visibility tracking of 261M+ prompts, all under one login.
When to pick Writesonic
- Content production is the priority — the AI Article Writer and 80+ templates generate SEO posts, ad copy, and emails as the product’s main function.
- You need AI-search monitoring on a budget: Writesonic bundles GEO tracking with writing from $79/mo, versus Semrush One starting at $199/mo.
- You want the broadest engine coverage at the top tier — tracking across 10 AI platforms including ChatGPT, Claude, Gemini, Perplexity, and DeepSeek.
Bottom line
Both now track how brands appear in AI answers, but they are built for different jobs. Semrush is the deep SEO and competitive-research suite — its keyword and backlink databases are the reason to buy it, justified for teams running search at scale from $117.33/mo annual. Writesonic is the lighter, content-first option: it produces the writing and monitors AI-search visibility across 10 engines from $79/mo, without the backlink and keyword depth. Pick Semrush for research and competitive intelligence; pick Writesonic for content plus GEO on a smaller budget.
Frequently asked questions
Is Semrush better than Writesonic?
Semrush and Writesonic both track AI-search visibility but sit at different scales: Semrush is a full SEO and marketing suite with a 28-billion-keyword database (Pro $117.33/mo annual), while Writesonic pairs AI writing with GEO tracking across 10 AI engines from $79/mo. Pick Semrush for deep keyword, backlink, and competitive research; pick Writesonic for content production plus AI-search monitoring on a smaller budget. Neither has a free tier — both offer 7-day trials. Updated Jul 15, 2026.
Is Semrush cheaper than Writesonic?
No — Writesonic has the lower starting price: $79/mo versus $117.33/mo for Semrush. Both prices were verified against the official pricing pages on Jun 11, 2026.
Do Semrush and Writesonic have free tiers?
No — neither does. Semrush has no free tier — its plans start at $117.33/mo. Writesonic has no free tier — its plans start at $79/mo.
Can I use Semrush and Writesonic on mobile or via an API?
Semrush runs on the web and offers an API. Writesonic runs on the web and offers an API.