Alternatives · SEO agents · Prices checked October 21, 2026
Semrush alternatives (2026): 6 compared by price
Semrush starts at Free; paid from $139/mo (checked October 21, 2026). Here are 6 alternatives for the same job, each with its pricing as the vendor publishes it, the source and the date we checked it: 6 publish prices, 1 has a free plan. Ordered by our data, never by payment.
Quick answer
- Semrush starts at: Free; paid from $139/mo (checked October 21, 2026, full listing).
- First in our order: Ahrefs (Free; Starter $29/mo), Frase ($49/mo), Surfer ($49/mo (billed yearly)).
- Lowest listed monthly plan: Ahrefs at $29/mo (5 of 6 list a lower monthly plan than Semrush).
- Free plan: Ahrefs.
- Open source: 2 projects in the Hub for the same job.
Semrush pricing, for reference
- Free: $0/mo
- Starter: $139/mo
- Pro+: $199/mo
- Advanced: $299/mo
- Additional users: from $45/mo
Plan names as we read them on the SEO & AI search pricing page.
Source: vendor pricing page, checked October 21, 2026. Semrush: full listing.
All 6 Semrush alternatives, in our order
SEO agents →-
SEOFree tier
Ahrefs
An SEO toolset for backlinks, keyword research, site audits and rank tracking, now with AI content tools, MCP access and AI-search tracking.
SubscriptionFree; Starter $29/mo
-
SEO
Frase
An SEO and content agent that researches what ranks, writes and optimises articles, and audits pages for search and AI answers.
Subscription$49/mo
-
SEO
Surfer
An SEO content tool that drafts and optimises articles for target keywords and tracks your brand's visibility in AI search.
Subscription$49/mo (billed yearly)
-
SEO
Search Atlas (OTTO SEO)
An SEO platform with OTTO, an agent that finds and deploys technical, on-page and local SEO fixes across your sites.
Subscription$99/mo
-
SEO
Clearscope
A content optimisation tool that grades drafts against what ranks and tracks how your pages perform in search and AI answers.
Subscription$129/mo
-
SEO
Alli AI
Pushes on-page and technical SEO changes to many sites at once through a code snippet, for agencies and multi-site businesses.
Subscription$299/mo
How we ordered this list: whether the vendor publishes its prices, then the number of verified public use cases we've found, then the lowest listed monthly plan. Only full listings (verified starting price with its source) in the same job category are included. We haven't tested these hands-on. How we rank.
Pricing compared
| Alternative | Starts at | Model | Free plan | Lowest monthly plan vs Semrush ($139/mo) | Checked | Source |
|---|---|---|---|---|---|---|
 Ahrefs | Free; Starter $29/mo | Subscription | Yes | $29/mo (lower) | October 21, 2026 | Source |
 Frase | $49/mo | Subscription | No | $49/mo (lower) | October 21, 2026 | Source |
 Surfer | $49/mo (billed yearly) | Subscription | No | $49/mo (lower) | October 21, 2026 | Source |
 Search Atlas | $99/mo | Subscription | No | $99/mo (lower) | October 21, 2026 | Source |
 Clearscope | $129/mo | Subscription | No | $129/mo (lower) | October 21, 2026 | Source |
| Alli AI | $299/mo | Subscription | No | $299/mo (higher) | October 21, 2026 | Source |
Prices are copied from each vendor's public pricing page on the date shown. "not published" or "Contact sales" means the vendor doesn't publish a price; we don't guess. Monthly plans are compared as listed (per seat where the vendor prices per seat); usage-priced plans have no monthly figure. Prices change; confirm with the vendor.
Open-source Semrush alternatives from the Hub
Free, open-source agents, skills, MCP servers and recipes for the same job, from the AITeamGuide Hub. You run them yourself.
-
Agent
OpenSEO
An open-source alternative to Semrush and Ahrefs for keyword research, rank tracking and site audits, with agent skills.
Marketing★ 25k
-
MCP server
Google Search Console MCP
An MCP server that lets an assistant query your Google Search Console data: queries, pages, indexing and performance.
Marketing★ 2k
FAQ
What are the best Semrush alternatives in 2026?
We list 6 alternatives to Semrush for the same job (get found in google and ai search), each with pricing checked on the vendor's own site. Ordered by our data (whether the vendor publishes its prices, then the number of verified public use cases we've found, then the lowest listed monthly plan), the first three are Ahrefs (Free; Starter $29/mo), Frase ($49/mo) and Surfer ($49/mo (billed yearly)). We haven't tested them hands-on, and no vendor can pay to change this order.
Is there a cheaper alternative to Semrush?
Semrush's lowest listed monthly plan is $139/mo (checked October 21, 2026). 5 alternatives list a lower monthly plan: Ahrefs ($29/mo), Frase ($49/mo), Surfer ($49/mo), Search Atlas ($99/mo) and Clearscope ($129/mo). Plans are compared as the vendors list them (per seat where they price per seat), so check what each plan includes.
Is there a free alternative to Semrush?
Ahrefs has a free plan or free tier, according to their public pricing pages (checked October 21, 2026).
Is there an open-source alternative to Semrush?
The AITeamGuide Hub lists 2 open-source projects for the same job that you run yourself, for example OpenSEO and Google Search Console MCP. They need setup and hosting, unlike Semrush.
Can a vendor pay to rank higher here?
No. The order comes from our data only. Paid placements are always labelled "Sponsored" or "Featured", sit outside the list and never change the order.
Related guides
All alternatives →- Search Atlas vs SemrushSide-by-side pricing
- Cheapest AI SEO tools7 sorted by price
- Surfer alternatives6 compared by price
- Ahrefs alternatives6 compared by price
Work at Semrush? Vendors can claim their listing for free or feature it with a label that says "Sponsored"; paid status never changes the order on this page. Building a different agent? List it here.
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