Free GEO Audit Tools Compared 2026: Where to Get a Free AI Search Visibility Check, 9 Korean and Global Options

A note on factual integrity. The free scopes, checklist lengths, and engine counts in this article reflect what public pages showed when they were checked, and they change often. Prices are list prices and move. Re-verify current terms on each vendor's official page before you sign up.

Searches for "free GEO audit tools compared" and "where can I get a free AI search visibility check" keep climbing, for a plain reason. Brands can tell they are invisible in AI search but not how invisible, and signing a paid contract from that position is uncomfortable. The complication is that "free audit" names three different things. An automated scan that returns a score instantly, a time-limited opening of a paid product, and a report an agency assembles by hand all carry the same label. This article separates those three and puts the free scope of 9 Korean and global options into one table. For a full feature comparison of the tools themselves, see AI Visibility Monitoring Tools Compared; for how the paid tiers are priced, see GEO Tool Pricing Overview.

Three types of free GEO audit

A self-serve scan returns a score and an item-by-item critique the moment you enter a URL or a brand name.

A free trial opens the features of a paid measurement product within a time window or a credit cap.

An assisted audit has an agency or solution vendor run the measurement and the interpretation for you, returning a report anywhere from a few days to two weeks later.

The three answer different questions. A self-serve scan answers "can machines read our pages." A free trial answers "does our brand actually show up in real questions." An assisted audit answers "where are we thin compared with competitors." Almost nothing in the free tier answers all three.

Free GEO audit tools compared

The tools and services below advertise a free audit or a free trial on their public pages. Where a public source does not confirm the free tier, the table says so. Prices are list prices and change.

Evidence: what the free tier actually shows

Ahrefs states that its AI Visibility Checker requires no signup, no card, and imposes no cap on lookups, and that the free report covers total AI mentions with a per-platform breakdown, the top 5 topics, and the top 5 domains and pages cited alongside the brand. Full data, historical tracking, and competitor comparison move to the paid product, Brand Radar.^[5] Otterly.AI publishes a content GEO score, an AI crawler accessibility check, a query fan-out simulation, and a prompt-count calculator as a free tool set.^[6] Per-engine citation tracking itself sits in the paid tier, and rather than a free plan the company runs a free trial for new users.^[7]

Korean self-serve scanners lead with checklist length. AI Search Master audits 80 items in roughly 30 seconds from a URL alone, and splits off a deep audit of 216 items, including browser rendering analysis, human review, and direct queries to AI engines, as a paid option.^[1] GeoRank GRank Scanner checks 7 items from a URL and an email, sends the report about 2 minutes later, and caps free scans at one per day.^[4] Beusable asks for signup, then takes a URL and returns schema tag analysis with a score and grade, claiming support for 66 industries and 15 page types. Its public post states neither pricing nor whether the audit is free.^[9]

On the measurement side, the free tier is defined by engine count. Intermajor AI Score takes brand details in 4 steps and opens two axes, visibility and sentiment, across ChatGPT, Perplexity, and Gemini; its page marks the citation axis as not offered in the free audit.^[2] BizSpring runs a free AI exposure audit that returns mention frequency and share against competitors across 4 engines, ChatGPT, Gemini, Claude, and Perplexity, within 2 weeks, and divides its paid work into three packages, strategy, growth, and full service.^[3] BOIDA offers a free plan that starts from a brand name or URL with no card on file, showing a BVI score and rank plus a technical audit summary within snapshot scope (Designovel BOIDA public page, 2026).^[11] The 6-engine figure in the table comes from the same page.^[11] A vendor-compiled comparison of 13 Korean and global tools shows free plans, 7-day trials, and single-run trials mixed together across products, which is why the word "free" tells you little about scope on its own (a vendor's own roundup tends to flatter that vendor).^[8]

On engine count alone, the Ahrefs free checker and BOIDA BVI tie at 6. More engines widen what you can check, but the count by itself does not rank one product above another. The figures above are the coverage each vendor publishes; how many questions actually open up in the free tier, and how often they are measured, varies by product.^[11][5]

What a free audit answers, and what it does not

That boundary sets how you should use free audits. Free audits reliably answer one thing: technical readiness. Missing schema, blocked crawlers, and the absence of answer-first structure surface clearly enough in a free scan and can be fixed with internal resources. Questions that need a trend over time are a different matter, and free will not settle them. Generative engines wobble on the same question, so reading a trend requires repeat measurement, and repeat measurement is where the paywall starts.

One more thing. A free audit from a Korean agency is the entrance to a conversation, not a deliverable. A third-party roundup of Korean GEO service pricing treats the market as three stages, free audit, paid consulting, and execution retainer, and puts most of it between KRW 300,000 and 3 million per month.^[10] That band is not a ceiling. BizSpring, cited in the same article, publishes a full-service tier above it.^[3] A third-party band and a single vendor's list price can disagree. Filing the request starts the budget talk. That is not a bad thing, but if the plan is to take the report and execute in-house, confirm what follow-up is expected before you apply.

Execution: an order for using up the free tier in 4 weeks

The order exists to prevent waste, not to save money. Start paid measurement before the technical items are fixed and the first month of data will report the same finding over and over: the technical items are still open. Clear what a free scan can clear, then pay for the trend data. First-month tasks are laid out in the GEO First 30 Days Checklist, and selection criteria for Korean agencies in Korea GEO Agency Comparison and Selection Guide.

Three signals that it is time to pay

One signal is the same question run twice giving noticeably different results. A one-off snapshot cannot carry a decision at that point, so repeat measurement is needed. Another is a competitor's name coming up ahead of yours with no way to tell whether the cause is content or cited sources, because the trimmed comparison in a free tier does not reach that far. The last one is the hardest: you have fixed everything the free scan flagged and mentions still have not risen. What is needed then is not a tool but content worth citing, which is where an approach that couples measurement with execution, or a look at agency support, comes in. In Korea, that conversation tends to include products that connect measurement through to execution on one platform, such as BOIDA BVI, and providers that pair audit with consulting, such as BizSpring and Intermajor.^[3][2][11]

Wrap-up

A free GEO audit is not a question of how much you can learn for free. It is a question of which questions a free audit can answer. A free audit does answer technical readiness and whether you are being mentioned right now. It does not answer time series or full competitor comparison. So the working order is to clear technical items with a self-serve scan, capture a mention snapshot with a free trial, and let those results decide the paid upgrade. The wider field of candidate tools continues in AI Visibility Measurement Tools Recommendation Guide and Korea AI Visibility Tools Compared.