SEMAI vs Signum.AI (2026): Pricing, Features & Which to Choose

Who comes out ahead

Based only on the facts in our directory. The right pick still depends on the job you need done.

Lower starting price
Not comparable
Not comparable: SEMAI does not list a price
Free plan
Tie
Both have one
Higher rating
SEMAI
3.8 against 3.7
Same job?
Yes
Both are SEO tools

Side by side

Compared on	SEMAI	Signum.AI
Our rating	3.8Better	3.7
Starts at	Free	$49/mo
Free plan	Yes	Yes
Category	SEO	SEO
Plans	Free	From $49/mo
Key features	Visibility tracking across ChatGPT, Perplexity, Gemini and AI Overviews Gap analysis against competitors in AI answers Content plan generated from identified gaps Monitoring over time rather than a one-off audit Free tier and trial before subscription	Brand visibility tracking across ChatGPT, Perplexity and Gemini Competitor benchmarking and AI visibility landscape Source and citation analysis Market-signal monitoring of reviews, news and website changes Visibility recommendations with activity feed and email alerts
Pros	Measures a channel most brands have no visibility into Produces a plan rather than only a dashboard Free tier makes a first assessment low-cost	Source analysis shows which pages and publications models draw on Published entry price of $49 a month with a 14-day money-back guarantee Free checker gives a first reading before paying
Cons	AI-visibility optimisation is young and methods are unproven Answer engines change frequently, so tracking needs re-baselining	Pricing page states no limits on prompts or engines tracked Visibility scores are sampled estimates because AI answers vary between runs Customer results and user counts are vendor-reported
Company		Signum.AI

Prices come from each vendor's pricing page, last checked 20260921. Check the vendor before you buy.

FAQ

Questions people ask

Is SEMAI better than Signum.AI?

In our reviews SEMAI scores 3.8 and Signum.AI scores 3.7. The better pick depends on the job. SEMAI: Tracks brand visibility across ChatGPT, Perplexity, Gemini and AI Overviews, then plans the content. Signum.AI: AI-visibility platform that tracks how a brand appears in ChatGPT, Perplexity and Gemini and what drives the citations.

Which is cheaper, SEMAI or Signum.AI?

SEMAI: free. Signum.AI: from $49/mo.

Do SEMAI and Signum.AI have free plans?

Yes, both have a free plan.

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