Comparison
Free AI visibility tools, and which are actually free
Most pages answering this list free trials as free. Of the eighteen tools we track, four have a tier that keeps working after the trial would have ended. Here they are, before we mention ours.
The four with a real free tier
| Tool | What free gets you | Best at |
|---|---|---|
| HubSpot AEO Grader | Free | Free and frictionless for a quick one-time snapshot, backed by the HubSpot brand. |
| Knowatoa | Freemium | Approachable and affordable AI-search monitoring focused squarely on answer-engine visibility. |
| Hikoo | Free + from €69/mo | A full audit-to-action cycle across up to seven AI engines, with a privacy-first European footing. |
| PromptOpti | Free tier + $29/mo Pro | Low-friction and revenue-framed: a genuine free-forever tier plus a $29/month full-feature plan, with queries ranked by estimated revenue at risk and a citation-gap report. |
PromptOpti is the most generous of the four if you want an ongoing free tier: one brand and five buyer-intent queries, forever. HubSpot’s grader is the fastest one-off snapshot and costs nothing because it is a lead magnet, which is fine as long as you know that going in.
Free tier or free trial, which is what you are being offered
This is the whole question behind the search and most pages blur it. A free tier keeps working and caps what you can do. A free trial gives you everything and then stops, and in this category it usually wants a card first, so forgetting to cancel is a charge rather than an ending.
The rest of the field is one or the other. Frase and GrackerAI run seven-day trials, LLM Pulse runs fourteen and asks for a card. Neither is a trick, but neither is what someone typing “free AI visibility tool” is looking for.
What a free check should actually show you
Three things, and the third is the one that separates a useful free tool from a lead magnet.
Which assistants named you and which named a rival instead, because the three disagree far more than they agree. The exact answer text rather than a score, so you can read how you were framed. And the source pages the answer was built from, which is the only part that tells you what to do next: in the three categories we measured end to end, the pages deciding the answer were third-party ones, not vendor sites, and you cannot act on that if nobody shows you the list.
Where ours sits
Glotier’s check is free with no account and no card, twice a day from the same network. It puts your buyers’ question to ChatGPT, Gemini and Perplexity on one shared live web search, shows which of them named you, and gives you every source behind the answer.
It is not the most generous free tier on this page. PromptOpti’s gives you an ongoing tracked brand and ours does not. What ours does that a free tier normally will not is skip the signup entirely, and hand over the source list, which is the part you actually need.
Do this automatically
Get Glotier Solo
Free tells you where you stand once. The reason to pay is the second measurement and the ones after it: the same questions re-asked daily, so you find out whether anything you changed moved the answer.
- The same buyer questions re-asked every day, so you see the moment an answer changes
- Every source page behind each answer, which is where the work actually is
- An article written from what it measured that day, ready for you to publish
- The subreddits and threads worth answering, with a reply drafted for each
Track 3 products and up to 150 buyer questions across ChatGPT, Gemini and Perplexity. $39/month.
Cancel any time. Not for you? Email us within 7 days of a charge and we refund it in full. Refund policy
Not ready to pay? The check is free, with no card and no account. Run it on your own product.
Questions people ask next
- Are there any genuinely free AI visibility tools?
- Yes, four of the eighteen tools we track publish a real free tier rather than a trial: HubSpot's AEO Grader, Knowatoa, Hikoo and PromptOpti. Glotier's check is free with no account and no card at all, which is a different thing again. Everything else in the category is either a time-limited trial or paid from the first day. Checked against each vendor's own pricing page on 2026-07-17.
- What is the difference between a free tier and a free trial?
- A free tier keeps working after the first week and usually caps what you can track. A free trial gives you everything for a few days and then stops, and most in this category ask for a card up front, so forgetting to cancel is a charge. If the page you are reading will not say which one it is offering, that is usually the answer.
- Is a free AI visibility checker good enough?
- For finding out where you stand, yes, and you should start there before paying anyone. It stops being enough the moment you want to know whether anything you changed worked, because that needs the same questions asked again on a schedule and compared. A single free check is a photograph; the thing you are actually buying later is the film.
- What should a free check actually show me?
- Three things. Which assistants named you and which named someone else, the exact answer text so you can see the framing rather than a score, and the source pages the answer was built from. That last one is the one most free tools omit, and it is the only part that tells you what to do next.
- Do I need a credit card to try Glotier?
- No. The check runs with no account and no card, twice a day from the same network. We ask for nothing until you decide the paid side is worth it, and if you do pay and it is not for you, email us within 7 days of the charge and we refund it in full.
Keep reading
Pricing and tier details read from each vendor’s own pricing page on 2026-07-17. Vendors change what they give away without notice, so check the source before you rely on it. Every product named is a trademark of its owner.