OmniSEO vs Semrush
We give OmniSEO and Semrush the same GPA: 2.2 out of 4.0. OmniSEO grades higher on value for money. Semrush grades higher on features and platforms. They get the same grade on the free plan and ease of use.
Price, platforms and features side by side. The table says where each price was read and when.
OmniSEO
Tracks how ChatGPT, Perplexity and Google AI answers cite your brand
Semrush
SEO suite for keyword research, rank tracking and AI search visibility
How we grade them
| 2.2GPAOmniSEOFair | 2.2GPASemrushFair | |
|---|---|---|
| Value for money | BEssentials is $89 a month billed monthly with 5 seats, so a team of five pays a price per head inside the cheaper quarter of SEO tools. One marketer on their own pays the full $89, past the dearer quarter. Gemini, Claude and the other engines need Professional at $349. | DThe SEO plan, the one Semrush aims at freelancers and small businesses, is $117.33 a month billed yearly ($139 monthly). That's in this category's dearest tenth, for one user. AI search tracking needs Starter at $165.17, and each extra person is from $45 a month. |
| Free plan and trial | CNo free plan, but a 7-day free trial with no credit card. It only covers ChatGPT and Google AI Overviews, and a week is just about enough to see where you stand. | CA free account with no card: 1 project, 10 reports a day and 10 tracked keywords. Fine for a look around, but you'll hit the wall in an afternoon. The 7-day trial of the paid plans checks your card with a small charge that's refunded at once. |
| Features | CVisibility scores, prompt research with query volume, citation tracking, benchmarks against 5 competitors, sentiment and next steps. It does AI visibility fully, but that's a smaller job: no Google rank tracking, site audit or backlink tools on any plan. | BKeyword research from a database it puts at 29 billion keywords across 142 countries, competitor and backlink analysis, daily rank tracking and Site Audit. It covers the whole job, though the SEO plan only gets the basic research tools and no AI visibility. |
| Ease of use | CNo App Store rating on record. You choose the prompts to save, capped at 50 on Essentials, and the competitors to track before the scores tell you much, so there's some setting up. | CNo rating on record. It's a big suite with a lot of reports, and there are projects to set up and plenty to learn before it all makes sense. |
| Platforms and integrations | CWeb only, with no integrations or API on record, and Essentials has no CSV or PDF exports. Your numbers stay inside OmniSEO unless you pay for Professional. | BWeb only, with no desktop or phone app. It connects to Google Analytics, Search Console, Wix, Yoast, AIOSEO, Supermetrics and Monday.com, has MCP from Starter, and the API comes with the custom-priced Advanced plan. |
| Best for | checking whether AI chatbots mention your brand | the broadest all-in-one SEO suite |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: OmniSEO and Semrush. How we grade
Price against what you get
OmniSEO starts at $89 a month and scores 2.0 out of 4 on features, ease of use and platforms. Semrush starts at $117.33 a month and scores 2.7.
Semrush scores higher, and starts $28.33 a month higher: the question is whether the extra is worth that to you. Of the other SEO tools on the chart, 13 score higher than OmniSEO for less, and none scores higher than Semrush for less.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Where they differ
- OmniSEO starts at $89 per month, billed monthly. Semrush starts at $117.33 per month, billed annually ($139 billed monthly).
- Semrush has a free plan. OmniSEO does not, though it has a free trial.
- Semrush also covers keyword research, rank tracking, site audit and backlink analysis.
At a glance
| OmniSEO | Semrush | |
|---|---|---|
| Pricing | Free trial | Free plan |
| Starts at | $89 per month, billed monthly | $117.33 per month, billed annually ($139 billed monthly) |
| Free plan | None | Free account: 1 project, 10 analytics reports a day across the main tools and 10 keywords in Position Tracking. No credit card needed. |
| Free trial | 7-day free trial covering ChatGPT and Google AI Overviews, no credit card | 7-day free trial of paid plans; a card is checked with a small charge that is refunded at once |
| Web | ||
| Made by | WebFX | Semrush Holdings |
| Price read from | omniseo.com | semrush.com |
| Checked | Oct 18, 2026 | Oct 17, 2026 |
Who each one suits
OmniSEO
- Marketing teams checking whether AI chatbots mention their brand
- SEO teams adding AI answer engines to their reporting
- Brands measuring AI visibility against named competitors
Semrush
- Freelancers and in-house marketers who want research, tracking and audits in one account
- Agencies comparing many client sites against their competitors
- Brands that want to watch their visibility in AI chat answers alongside Google rankings
Worth knowing
OmniSEO
- Essentials covers 4 AI engines; Gemini, Copilot, Claude, Meta AI, Grok and DeepSeek need Professional at $349 a month.
- Saved prompts are capped at 50 a month on Essentials and 100 on Professional, with 5 tracked competitors on both.
- Essentials has no CSV or PDF exports; Professional exports up to 5,000 rows a month.
- It covers AI answer engines only; the plans list no Google rank tracking, site audit or backlink tools.
Semrush
- Each plan includes one user; extra users start at $45 a month each, priced by plan level.
- Scheduled PDF reports are an add-on at $10 a month, or $20 with white-labeling; Advanced includes reporting.
- API access and share of voice come only with the custom-priced Advanced plan.
- Local, content, social, advertising, AI PR and traffic tools are separate toolkits with their own prices.
Key features
OmniSEO
- AI visibility tracking
- Visibility scores and trends for your brand across ChatGPT, Perplexity, Google AI Overviews and AI Mode, with more engines on Professional.
- Prompt research
- Search by domain or topic to see real prompts people ask, how often (prompt query volume), whether your content covers them, and who gets cited.
- Citation tracking
- Shows which of your pages AI engines cite in their answers and where competitors are cited instead.
- Competitor benchmarking
- Side-by-side visibility and share of voice against up to 5 tracked competitors, including newly appearing ones.
- Sentiment analysis
- Tracks how AI engines and their sources describe your brand across topics and queries.
- Placement recommendations
- Prioritized next steps to improve placement, grouped by engine, query intent and topic cluster.
Semrush
- Keyword research
- Look up search volume, difficulty and intent from a database Semrush puts at 29 billion keywords across 142 country databases.
- Competitor and backlink analysis
- See which keywords and pages bring a rival site its traffic, and inspect any domain's backlink profile.
- Position Tracking
- Track daily rankings for 500 to 5,000+ keywords depending on the plan; Pro+ adds tracking by location and device.
- Site Audit
- Crawl your sites for technical SEO problems. From the Starter plan the audit also checks how ready a site is for AI search.
- AI visibility tracking
- Starter and above track daily whether set prompts in AI chat tools mention your brand, with sentiment monitoring. The SEO plan has none of this.
- MCP and API access
- Starter and above can query Semrush data from AI assistants through MCP; the API itself comes with the Advanced plan.
Plans
OmniSEO
Essentials$89
per month, billed monthly
4 AI channels (AI Overviews, AI Mode, ChatGPT, Perplexity), 50 saved prompts, 50 volume lookups, 5 competitors, 5 seats. First paid month $45.
Professional$349
per month, billed monthly
All 10 AI channels, adding Gemini, Copilot, Claude, Meta AI, Grok and DeepSeek; 100 saved prompts, 200 lookups, CSV and PDF exports, 10 seats. First month $175.
Enterprise$899
per month and up
Custom regions and models, 500 or more saved prompts, monthly AEO and GEO consultations, multi-brand setups and unlimited seats. Sold through sales.
Semrush
Free$0
1 project, 10 analytics reports a day and 10 tracked keywords, for trying the tools.
SEO$117.33
per month, billed annually ($139 billed monthly)
1 user, 5 websites, 500 keywords tracked daily, basic keyword and competitor research, and Site Audit. No AI search tracking.
Starter$165.17
per month, billed annually ($199 billed monthly)
5 websites and 500 keywords, full keyword research tools, MCP access, 50 AI prompts tracked daily and 300 AI visibility reports a day.
Pro+$248.17
per month, billed annually ($299 billed monthly)
15 websites, 1,500 keywords, historical data, content optimization, cannibalization checks, multi-location tracking and 100 AI prompts.
AdvancedCustom
40+ websites, 5,000+ keywords, share of voice, API access, team users, reporting and unlimited AI prompts. Sold after a demo.
Ways to pay less
OmniSEO
- Annual discount
Two months free with annual billing
OmniSEO's pricing page lists Essentials at $890 a year and Professional at $3,490 a year, against $89 and $349 a month billed monthly.
- Other savings
50% off the first paid month
After the 7-day trial, the first paid month costs $45 on Essentials and $175 on Professional; the offer does not apply to Enterprise.
Semrush
- Annual discount
Save up to 17% with annual billing
Semrush's pricing page lists annual billing at up to 17% less: Starter is $165.17 a month billed annually instead of $199 billed monthly.
