Key takeaways
- You can get a real baseline for $0 with free graders, and a credible daily monitor for $29 a month. Past that, the useful sub-$100 options mostly mix tracking with content tools.
- Check what a "prompt" and an "engine" cost on each plan. A cheap tier that covers 15 prompts on four engines is a very different thing from 100 prompts on one.
- Watch the price cliffs. Otterly.ai jumps from $29 to $189 with nothing in between, so plan for the next step before you commit.
- Most "best GEO tools for startups" lists are written by vendors who rank themselves first. Verify every price on the vendor's own pricing page.
- Start with monitoring, then spend on content and optimization once you know which prompts and pages matter.
What a startup actually needs from a GEO tool
GEO tooling does three different jobs: monitoring (am I mentioned?), optimization (what should I change?), and measurement (did it send anyone to my site?). On a budget you will not get all three in one $50 plan. Pick the job that is most urgent and buy for that.
My own rule of thumb for a seed-stage team: spend the first month on free diagnostics, then pay for monitoring only once you have a list of 10 to 30 prompts you genuinely care about. Tracking 500 prompts you made up on day one is how people burn money.
It also helps to know what you are measuring. According to Promptwatch's sources-per-response data, ChatGPT cites about 5 sources per web-search answer, while Google AI Overviews and Perplexity cite about 10. That means the odds of getting picked differ a lot by engine, and a tool that only covers one engine gives you a narrow picture.
Free options to start with
Before paying anything, run a one-time diagnostic. These answer "where do we stand?" and cost nothing.
HubSpot's AEO Grader is a free one-off scan with no card required. HubSpot also sells a paid AEO product reported at around $50 a month after a trial, but I could not verify that on HubSpot's own page, so confirm before you plan around it.
Promptwatch also has a free Explore plan (1 project, 10 prompts, ChatGPT only), a no-login Free AI Visibility Report, and a free GEO Inspector Chrome extension that shows ChatGPT's query fan-outs. For a pre-revenue team that is enough to see whether you appear at all.
Two more free or nearly free pieces round out a zero-dollar stack: a free llms.txt generator such as llmtxt.info for the crawler basics, and manual spot checks in ChatGPT, Perplexity and Google AI Overviews with a spreadsheet of your 10 to 20 priority questions.
Budget monitoring tools under $100 a month
Otterly.ai at $29 a month
This is the cheapest credible entry point I found. The Lite plan is $29 a month (15% off billed annually), and per Otterly's pricing page it includes 15 search prompts, daily tracking, and unlimited team members, brands and competitors. It covers ChatGPT, Google AI Overviews, Perplexity and Microsoft Copilot. Claude, Google AI Mode and Gemini are paid add-ons. You also get a query fan-out tool, a GEO audit, a crawlability audit and sentiment analysis.
The catch is the cliff. Standard is $189 a month for 100 prompts, and Premium is $489 for 400. Some third-party articles list a $989 Pro tier, which does not match Otterly's own page, so ignore that figure. If you outgrow 15 prompts, you are choosing between Lite plus add-ons and a much bigger bill.
Rankscale
Rankscale is reported at roughly $20 a month in credits, which makes it the cheapest spot-check option. Credit models suit irregular use, but they are harder to forecast once you add prompts, reruns and engines.
Geoptie
Geoptie is pitched as a budget all-in-one with a GEO audit, content checker and keyword finder. Sources disagree on price ($41 versus $49 a month), so check its pricing page.
Peec AI
Peec AI sits around $95 a month by third-party reports, just under the line. It is better suited to teams that will run a recurring program across markets than to a founder doing occasional checks.
Other low-cost trackers worth a look
The catalog has a long tail of cheap trackers. Ones aimed at small teams include BrandAxis, Atyla, Radix AI, Airefs and Answer Socrates (reported from $15 a month). I have not verified their pricing, so treat these as a shortlist to test on a free trial rather than a recommendation.
For a broader view of the field, the directories at bestgeosoftware.com and ai-rank-tools.com list far more options.
Content and optimization tools under $100
If your bottleneck is producing pages rather than measuring them, these combine tracking with writing.
| Tool | Reported starting price | What you get | Best for |
|---|---|---|---|
| Scalenut | $59/mo Starter, $89/mo Plus | 10 to 25 tracked prompts, 5 to 30 GEO articles | Teams that want tracking and drafting together |
| Frase | $49/mo Starter | 10 AI-optimized articles, 2 AI visibility platforms | Writers who already work in briefs |
| Writesonic | $39/mo to $79/mo | Content generation plus tracking on 3 engines | Content-heavy teams |
| Averi | $99/mo Solo | Strategy, drafting and citation analytics | Solo founders who want one workspace |
These prices come from vendor blogs and the vendors' own marketing, so confirm them before buying.
One honest caution: writing tools that produce a lot of articles do not help if the articles are not what AI engines cite. Promptwatch's content-type data shows product pages were 22.4% of ChatGPT citations from Sep 28 to Oct 4, 2026, ahead of landing pages and listicles. A startup is often better off fixing its product and comparison pages than publishing ten blog posts.
Comparison at a glance
| Tool | Starting price | Free option | Strength | Watch out for |
|---|---|---|---|---|
| HubSpot AEO Grader | Free | Yes | One-time diagnosis | No ongoing tracking |
| Promptwatch Explore | Free | Yes | 10 prompts, ChatGPT only | Narrow engine coverage on free |
| Rankscale | ~$20/mo | No | Cheap spot checks | Credit-based costs |
| Otterly.ai | $29/mo | 14-day trial | Daily tracking on 4 engines | Big jump to $189 |
| Geoptie | $41-49/mo | 14-day trial | Monitoring plus audit tools | Conflicting price listings |
| Frase | $49/mo | No | Content briefs | Tracking is secondary |
| Scalenut | $59/mo | No | Tracking plus GEO articles | 10 prompts on Starter |
| Peec AI | ~$95/mo | No | Recurring multi-market programs | Prompt caps per plan |
When it is worth stepping above $100
Monitoring tells you that you are missing from an answer. It does not tell you why, or whether the page you fixed got crawled. Once you have real traffic at stake, the next tier is an optimization platform that closes the loop.
Promptwatch's Essential plan is $95 a month, which still fits under the line. It includes 50 prompts, 6,000 responses, all supported AI models, country tracking, a site audit, content gap analysis and 500 Agent Credits, with a 7-day trial on monthly billing. Its Professional plan at $245 a month adds the Knowledge Base and AEO articles. Confirm current pricing at promptwatch.com/pricing. Compared with a $29 tracker, the extra money buys crawler-level and traffic-level visibility rather than just mention counts.
If you are comparing the premium end, Profound's Starter is reported at $82.50 a month billed annually but covers only ChatGPT and 50 prompts, so check the scope.
AthenaHQ is another name that comes up. Sources conflict on whether its entry point is a free tier or $265 to $295 a month, so it likely belongs in the next budget bracket.
How to compare plans honestly
- Define "prompt". It can mean one question, one question per engine, or one scheduled run. That changes real cost a lot.
- Count engines. Four included engines and three paid add-ons is a different price than seven included.
- Check seats, competitors, history and exports. These are the usual upgrade triggers.
- Prefer predictable pricing. Credit models are fine for light use, but add up fast when you add markets.
- Ask what the tool tells you to do. A dashboard that needs an analyst to interpret is a poor fit for a one-person marketing team.
PallasAI's flat-rate pricing guide makes the same point well, though note that it is a vendor selling a flat-rate product.
A sensible stack by budget
$0 a month
Run the HubSpot AEO Grader and Promptwatch's free report. Keep a spreadsheet of 15 prompts, check them monthly in ChatGPT, Perplexity and AI Overviews, and add an llms.txt file. Fix your product and comparison pages first.
Around $30 a month
Add Otterly.ai Lite and track 15 prompts daily. Use its crawlability audit to catch obvious blockers.
Around $60 to $100 a month
Pick one path. If you need more tracking depth, take Promptwatch Essential or Peec AI. If you need more content output, take Scalenut or Frase and rely on their lighter tracking.
Prompt-writing tip that costs nothing
Query fan-outs shape what AI actually searches. Promptwatch's ChatGPT query fan-out data shows average query length falling from about 117 characters in early December 2025 to roughly 53 in April 2026, and searches per response sitting around 1.0 to 2.15 across that period. The practical takeaway is to write headings like short queries, put the entity and category first, and build focused pages for comparisons, pricing and alternatives.
A word on the sources behind these lists
Much of the public advice on this topic comes from vendors: Anagram, GrackerAI, PallasAI, Scalenut and Averi each rank themselves first in their own roundups. That does not make the information wrong, but prices conflict between sources, and some tiers look stale. Treat any figure here that I did not tie to a vendor's own page as a starting point, and open the pricing page before you buy.
If you want a human to set the program up rather than another login, 1001 SEO Media offers GEO and SEO consulting with no long-term contracts, which can make sense once your tool bill is no longer the main constraint.
Bottom line
Start free, move to a $29 monitor once you have a real prompt list, and only pay for content or optimization tools when you know which pages need work. Verify every price yourself, and budget for the step above Lite before you need it.