Alvaro Peña de Luna 
AEO tools show you whether answer engines like ChatGPT, Perplexity and Google’s AI Overviews recommend your brand, and what to change when they do not. The category has grown from a handful of trackers to dozens of platforms in two years, and the pricing pages have become hard to compare: some sell prompts, some sell credits, some sell engines one by one.
This comparison uses the public list prices and plan limits on each vendor’s site, checked on 29 September 2026, so you can compare like with like. We build one of these tools, Mencoro, and we describe the others as we would want ours described.
What an AEO tool should do
Answer engine optimization has three jobs, and a tool is only as useful as the jobs it covers:
- Measure. Run the prompts your buyers ask, on the engines they use, often enough to see a trend. One run of one prompt is an anecdote; a mention rate across repeated runs is a measurement.
- Explain. Show how you were mentioned (recommended, compared, listed in passing), with what sentiment, next to which competitors, and which pages the answer cited.
- Act. Point to the pages, sources and content gaps that would change the answer. Some tools stop at data; others add content or technical workflows on top.
The metrics behind those jobs are covered in our guide to GEO metrics . The short version: a count of mentions without quality, share of voice and citations tells you very little.
AEO tools compared
| Tool | Entry price (list, Sep 2026) | Engines on the entry plan | Best for |
|---|---|---|---|
| Mencoro | €15/mo for 200 checks | ChatGPT, Perplexity, AI Overview, AI Mode, plus Google SERP | Mention quality and SERP in one project |
| Profound | Free 7-day trial, then quote | Trial: ChatGPT, Gemini, AI Overviews. Enterprise: up to 9 | Enterprise brands with a sales-led budget |
| Peec AI | €85/mo (€70 billed yearly), 50 prompts | 3 models of your choice, more as add-ons | Marketing teams that want a clean daily tracker |
| Otterly.AI | $29/mo ($25 yearly), 15 prompts | ChatGPT, AI Overviews, Perplexity, Copilot | Small teams starting out |
| AthenaHQ | Free plan (300 credits), Starter $295/mo | Free: 5 engines. Starter: 11 | Teams that want broad engine coverage and content actions |
| Semrush AI Visibility Toolkit | $99/mo per domain, 25 prompts | ChatGPT, AI Overviews, AI Mode, Gemini, Perplexity | Teams already on Semrush |
| Ahrefs Brand Radar | From 5 custom prompts on Lite ($129/mo) | AI Overviews, AI Mode, ChatGPT, Perplexity, Gemini, Copilot | Market-wide research on top of Ahrefs data |
| HubSpot AEO | $50/mo ($45 yearly), 25 prompts | ChatGPT, Gemini, Perplexity | HubSpot users who want a simple first view |
| SE Visible | $99/mo ($79 yearly), 200 prompts | AI Overviews, AI Mode, ChatGPT, Gemini, Perplexity | Agencies that want many prompts per dollar |
| Goodie | $399/mo billed yearly, 120 prompts | ChatGPT, AI Overviews, Perplexity, AI Mode, Copilot | Brands that want tracking plus content agents |
Prices are the public list prices before tax, in the currency each vendor shows. Prompt limits are not directly comparable: Mencoro counts checks (one query, on one engine, in one country, per run), AthenaHQ counts credits (one AI response each) and most others count prompts per plan.
Mencoro
Mencoro tracks ChatGPT, Perplexity, Google AI Overview and Google AI Mode, plus the classic Google SERP and Google Shopping, in the same project. Every mention is classified into one of five mention types, from a direct recommendation to a passing reference, and scored for sentiment, so share of voice is weighted by how you were mentioned rather than counted. Citations are tracked per answer. Plans are paid per check from €15 a month, with unlimited projects, competitors and users, a REST API and an MCP server . It does not track Gemini, Claude or Copilot today. The method behind every number is public in how Mencoro works.
Profound
Profound is the best-known enterprise platform in the category. Beyond answer tracking it sells prompt volume estimates, agent analytics (AI crawler traffic from your CDN or logs), ChatGPT Shopping tracking and credit-based AI agents for content. There is no self-serve paid plan on its site: a free 7-day trial covers 50 prompts on ChatGPT, Gemini and AI Overviews, and anything beyond that is quoted by sales. Agencies can add client workspaces at $399 a month each. G2 reviewers praise the depth and mention the price and the learning curve.
Peec AI
Peec AI, based in Berlin, is a daily tracker with a clean interface and strong source analytics. Starter costs €85 a month (€70 billed yearly) for 50 prompts, Pro €205 for 150 and Advanced €425 for 350, all with unlimited users. Each plan includes three models you choose from ChatGPT, AI Mode, AI Overviews, Copilot, Gemini and Naver; Perplexity and other extra models are paid add-ons, and Claude, Grok and DeepSeek are Enterprise only. It ships an MCP server, while the API is Enterprise only.
Otterly.AI
Otterly.AI, from Austria, is the cheapest way in. Lite is $29 a month for 15 prompts on ChatGPT, AI Overviews, Perplexity and Copilot; Standard is $189 for 100 prompts and adds the API, the MCP server and agent analytics; Premium is $489 for 400 prompts. Google AI Mode, Gemini and Claude are add-ons whose price rises with the plan. It also runs GEO audits of your URLs with weekly recommendations.
AthenaHQ
AthenaHQ has the widest engine list at its price. The free Essential plan gives 300 credits across five engines, and Starter, at $295 a month ($245 billed yearly), gives 3,600 credits across 11: ChatGPT, Perplexity, AI Overviews, AI Mode, Gemini, Claude, Copilot, Grok, DeepSeek, Meta AI and Mistral. It adds prompt volume estimates, a content optimization agent and robots.txt and llms.txt management. Starter is limited to one region and language, and the API is a paid add-on.
Semrush AI Visibility Toolkit
Semrush sells AI visibility as a toolkit at $99 a month per domain with 25 prompts, or inside Semrush One from $199 a month with 50. It covers ChatGPT, AI Overviews, AI Mode, Gemini and Perplexity, and the appeal is having AI data next to Semrush’s keyword and backlink databases. Prompt limits are small for the price if AI tracking is all you need.
Ahrefs Brand Radar
Brand Radar works the other way round from most trackers. Its core is a large index of AI answers that Ahrefs collects for everyone, sold as an AI Visibility Index at $199 a month per platform or $699 for all of them, which is useful for market research on brands you do not track yet. Custom prompts come with Ahrefs plans, from 5 on Lite ($129) to 20 on Advanced ($449), and extra prompt packages cost $50 to $250 a month. There is no free trial.
HubSpot AEO
HubSpot AEO costs $50 a month ($45 billed yearly) for 25 prompts and one brand, and does not require a HubSpot subscription. It covers ChatGPT, Gemini and Perplexity only, and HubSpot still labels it a beta. A fair first step for HubSpot users; its free AEO grader gives a one-off snapshot.
SE Visible
SE Visible is SE Ranking’s standalone AI visibility product. Basic costs $99 a month ($79 billed yearly) for 200 prompts and three projects, with a 10-day trial, and covers AI Overviews, AI Mode, ChatGPT, Gemini and Perplexity. It is one of the most generous prompt allowances at its price, which makes it popular with agencies.
Goodie
Goodie positions itself as a full-stack AEO platform: tracking plus content, outreach and technical agents, agentic commerce visibility and traffic attribution. Core costs $399 a month billed yearly for 120 prompts on ChatGPT, AI Overviews, Perplexity, AI Mode and Copilot; Pro, at $999, adds Gemini, Alexa and Sparky. Agencies get a separate plan from $275 a month.
How to choose an AEO tool
- Start from the engines. List the engines your buyers use, then check whether each tool includes them in the plan or sells them as add-ons. That single check changes the real price of several tools on this list.
- Count what you will actually run. Prompts times engines times countries times runs per month. A cheap plan with daily runs on three engines can cost more than a pricier plan with weekly runs.
- Ask how mentions are scored. A tool that tells you only whether you appeared hides the difference between being recommended and being listed as the expensive option.
- Decide how much “act” you need. If you have a content team, a tracker with good citation data may be enough. If you do not, a platform with content workflows may be worth the higher price.
- Test on your own prompts. Most tools on this list have a trial or a free plan. Run the same 20 prompts in two of them for a week and compare what each one tells you.
If you want to go deeper, our comparisons of GEO tools, LLM rank trackers and AI visibility tools look at the same market from other angles.
And if the job you care most about is knowing how answer engines talk about you, Mencoro’s AI visibility tracking was built for that: every mention classified, share of voice weighted by mention quality, and the classic SERP in the same project, from €15 a month.
