SemChat vs Haloscan: which one fits your site?

SemChat vs Haloscan is an odd head-to-head: both tools come from the same house. To choose, ask yourself two things. Where is your market? And do you want to dig through data tables yourself, or ask a question and get an action plan back?

Below are the facts read on October 29, 2026, on both official sites, plus my own test of SemChat on a real site. Both links on this page are affiliate links: the site earns a commission, at no extra cost to you.

Same company: what that means for you

SemChat’s terms and Haloscan’s legal notice name the same company, ARCHI301, based in Nice, France, with the same registration number (both read on October 29, 2026). Adrian Delmarre, who writes on behalf of Haloscan, confirmed it in an e-mail on October 29, 2026: in France, SemChat uses Haloscan’s data. He describes SemChat as an online version of Haloscan’s MCP server, with nothing to install.

In practice, when SemChat shows rankings in France, they come from the same database. During my audit on October 29, 2026, the detailed rankings table for my site had 89 rows.

The key difference: Haloscan’s data covers France only

Haloscan says it plainly in its FAQ: “Pour le moment, nos données sont spécialisées sur le marché français” (for now, our data is specialized in the French market). Its English home page calls it “the most complete API on the French market” (read on October 30, 2026).

SemChat isn’t centered on France. Outside France, it uses a mix of keyword data providers it doesn’t name (e-mail from Adrian Delmarre, October 29, 2026). So for a US site, SemChat’s numbers are not Haloscan’s numbers. Keep that in mind when you read them.

Choose Haloscan if your market is France and you like digging

Haloscan is a data tool, built for people who read SEO metrics. Its site mentions no chat assistant and no action plan.

Keyword research on the French market

Its Keyword Explorer gives each keyword its search volume, difficulty, cost per click, search intent and the elements of the results page. You can run 3,000 keywords at once. It tracks 31 Google results features, including the AI overview.

Your competitors’ sites, taken apart

Its Site Explorer shows a site’s keywords, rankings, traffic and best pages, plus the keywords you share with it. Competitor analysis starts on the Starter plan. Backlink analysis was marked “Sortie prochainement” (coming soon) on the home page on October 29, 2026.

An API for your own tools

The API comes at no extra cost from Starter; the Free plan doesn’t include it. Haloscan also offers a free Chrome and Firefox extension, and daily Google rank tracking: 800 keywords from Starter, 5,000 on Guru.

Choose SemChat if you want an answer, not a table

Plain questions in, an action plan out

On October 29, 2026, I typed one sentence in French: “Fais un audit SEO de mon site plugkit-avis.com et donne-moi un plan d’action clair, par priorité.” (Run an SEO audit of my site plugkit-avis.com and give me a clear action plan, by priority.) SemChat picked its method by itself, ran its tools, and returned 8 indicators, a 5-point diagnosis and 3 actions for the week, in about 3 minutes.

Your Search Console, Analytics and site connected

SemChat offers 8 connectors: Google Search Console, Google Analytics 4, Bing Webmaster Tools, Yandex Metrica, WordPress, Webflow, Slack and Notion, plus a custom MCP connector. Haloscan’s pages don’t mention such connectors. With Search Console connected, SemChat gave me my real clicks: 8 clicks and 533 impressions over three months, the same figures I found in Search Console.

A site that targets the US or other countries

This is where SemChat makes more sense of the two. Haloscan’s data stops at France. SemChat works with other countries, using data providers it doesn’t name. Ask it where a number comes from, as I did in my tests, before you build a plan on it.

What one sentence produced on a real site

I checked two findings by hand. My contact page was indeed missing. The duplicate titles were real, but between two language versions declared to Google: a useful flag, in a slightly alarming tone. The full step-by-step is in the SemChat tutorial, and my SemChat review tells the whole test, limits included.

SemChat vs Haloscan: the table of facts, checked October 29, 2026

The table sums up both tools’ fact sheets. When a feature isn’t mentioned on an official site, I say exactly that: it doesn’t mean the feature doesn’t exist.

Sources: pricing pages, home pages, terms and legal notices of both tools, read on October 29, 2026, and my SemChat account on the same day.

Pricing: SemChat and Haloscan both start at €0

SemChat: from the Free plan to Pro, with 10% off for life

SemChat has four plans with the same features: Free at €0, Starter at €20 a month, Pro 5x at €100, Pro 20x at €200, with 20% off on yearly billing (pricing page read on October 30, 2026). Prices are in euros, also on the English site. The details are on our SemChat pricing page.

If you subscribe within 2 weeks of signing up through our link, you get 10% off for life (e-mail from Adrian Delmarre, October 29, 2026). The conditions are on the SemChat promo code page.

Haloscan: its four plans

Haloscan also has four plans: Free at €0, Starter at €59 a month, Agency at €179, Guru at €449, and its English pricing page says “Prices excl. tax.” (read on October 30, 2026). Yearly billing gives two months free. The Free plan includes neither the API nor competitor analysis.

Haloscan publishes a code, HaloScanS, for 8% off, presented as a limited-time offer.

Using SemChat and Haloscan together

The two can live side by side if your market is France. Use SemChat to get the plan: what to fix, what to write, in which order. Use Haloscan to dig into a list in detail, export it, or track your rankings every day. Since both rely on the same French data, you won’t be comparing two different databases.

If your market is the US, that pairing doesn’t hold: Haloscan has no US data to dig into. So SemChat vs Haloscan comes back to the two questions from the top: where your customers are, and whether you want data or answers. If you’re weighing other tools too, our SemChat comparison sets SemChat next to Semrush, Ahrefs, SE Ranking and others by entry price, free plan and way of working.