Collection
AI-Visibility Tools With Free-Forever Tiers (2026)
We track 9 AI-visibility tools with free-forever tiers. Our October AI answer check named CitedIndex as a source for 5 of them.
8 with a free plan · prices checked 2 September–18 October 2026
Reviewed by the CitedIndex editorial team.
The 9 AI-visibility and GEO tools in our index that publish a genuine $0 plan you can keep using indefinitely, sitting alongside real paid tiers: not a time-limited trial, and not a fully-free product with nothing else to buy.
As GEO/AI-visibility vendors increasingly gate any free access behind a time-limited trial, a small group still keeps a standing, no-expiry $0 plan next to their real paid tiers. We checked every tool in our index against its own published pricing and found 9: AthenaHQ, Promptwatch, GEO Tool, Ubersuggest, geoSurge, AI Sightline, CiteLens, EdenRank and SEORCE. What each free tier actually includes, and where it stops, varies enough that "has a free plan" is not a useful buyer signal on its own.
At a glance
- tools
- 9
- Free to start
- 8 of 9
- free plan or freemium
- Public API
- 3 of 9
- 5 more only on a paid tier
- Public pricing
- 9 of 9
- price on their own site
What this collection covers
AthenaHQ's Essential plan is the most credit-metered of the original five: $25 of free credit (about 300 credits) a month across five engines (ChatGPT, Perplexity, AI Overviews, Gemini and Claude), with Microsoft Copilot and Grok held back for the $295/month Starter tier. Promptwatch's "Explore" plan is marketed as "free forever" and, unusually among self-serve tools, doesn't publish a specific cap on tracked prompts or websites at that tier; worth confirming directly before relying on it. GEO Tool's free layer is the narrowest: a single one-off 0-100 GEO Score audit, not an ongoing monitoring dashboard, and the tier above it is a one-time €299 (about $335) fee rather than a subscription, the only pay-once product in this set. Ubersuggest's Free plan clearly covers its core SEO toolset, but its own marketing page doesn't confirm whether any AI-visibility tracking runs at that tier at all; confirmed AI-visibility tracking (10 monthly prompts across ChatGPT, AI Overviews and Gemini) only starts on the $29/month Personal tier. geoSurge's Free (BYOK) plan is the most generous of the original five: unlimited tracked prompts across ChatGPT, Claude and Gemini, full REST API, CSV/JSON export and MCP access, and unlimited seats, provided you supply your own model API key and pay that usage separately.
AI Sightline's Free plan covers just two of the six engines this tool eventually tracks, ChatGPT and Google AI Overviews, at three prompts scanned once a week. API access (100 calls/month) is included even at $0, but Copilot, Gemini, Claude and Perplexity all require at least the $29.95/month Starter tier. CiteLens's Free plan covers three AI engines, ten tracked prompts and five GEO audits a month, with no API access below the $599/month Pro tier, the highest API cutoff in this set. EdenRank's Free plan tracks only three of the ten answer engines it eventually covers: Google AI Overviews, AI Mode and Microsoft Copilot, with no ChatGPT, Claude, Gemini or Perplexity. It caps at five active prompts and a weekly digest rather than real-time alerts; the $59/month Starter tier opens the rest. SEORCE's Free plan is labeled "forever" rather than a trial and bundles ten AI-visibility prompts a month with core SEO tools like site crawling and AutoFix repairs. Every paid step above it, starting at $49/month, adds prompt volume and competitor tracking rather than unlocking AI tracking for the first time.
What it takes to be on this list
A tool earns a place here only if its own CitedIndex listing's sourced pricing shows a standing $0 tier with no time limit and no one-time-only signup bonus, sitting alongside at least one real priced tier above it: a genuine freemium ladder. A tool with no priced tier at all belongs in our free-and-open-source collection instead; a tool whose only no-cost option is a time-boxed trial (however long) belongs in our free-trial collection, not here. Verified against each tool's own pricing page and already-sourced CitedIndex listing, re-checked 2026-08-17.
The 9 tools
AthenaHQ
AEO/GEO platform tracking brand visibility across 11 AI models, with content and technical actions.
Free, then $295/month
Tracks- ChatGPT: on every plan
- Gemini: on every plan
- Perplexity: on every plan
- AI Overviews: on every plan
- Copilot: on every plan
- Claude: on some plans only
- and 4 more
The only entry here with a granular, engine-gated free tier: $25 of credit (~300 credits) covers ChatGPT, Perplexity, AI Overviews, Gemini and Claude, but Copilot and Grok require the $295/month Starter plan.
Promptwatch
AI search visibility tracking with crawler logs and content agents that publish to your CMS.
From $95/month
Tracks- ChatGPT: on every plan
- Gemini: on every plan
- Perplexity: on every plan
- AI Overviews: on every plan
- Claude: on every plan
- AI Mode: on every plan
- and 4 more
Best for Marketing teams and brands that already run traditional SEO
Marketed as "free forever," but exact tracked-prompt and website caps for the Explore plan aren't published, making it the one tool in this set where a buyer needs to ask before relying on the limit.
GEO Tool
Free GEO readiness check for one URL, plus paid audits, early-access answer monitoring and a Berlin GEO agency.
Free, then $229/month
Tracks- ChatGPT: on every plan
- Gemini: on some plans only
- Perplexity: on some plans only
- AI Overviews: on some plans only
- Claude: on some plans only
- AI Mode: on some plans only
- and 1 more
Best for buyers who want a free, fast, no-signup technical GEO-readiness read
The free tier is a single one-off GEO Score audit, not an ongoing dashboard, and the paid step above it is a one-time €299 (about $335) fee rather than a subscription: a different shape from every other tool in this set.
Ubersuggest
Neil Patel's SEO suite with an AI Search Visibility report that tracks brand mentions in AI answers.
Free, then $29/month
Tracks- ChatGPT: on every plan
- Gemini: on every plan
- AI Overviews: on some plans only
- Perplexity: not tracked
- Claude: not tracked
- AI Mode: not tracked
Best for SEO teams already paying for Ubersuggest who want a low-cost bundled first look at AI-mention data without a separate purchase
The Free plan covers Ubersuggest's core SEO toolset, but its own marketing page doesn't confirm any AI-visibility tracking runs at that tier. Confirmed AI Search Visibility (10 prompts/project across ChatGPT, AI Overviews and Gemini) starts on the $29/month Personal plan.
geoSurge
Tracks how ChatGPT, Claude and Gemini describe your brand, free on your own AI subscriptions.
Free
Tracks- ChatGPT: on every plan
- Gemini: on every plan
- Claude: on every plan
- Perplexity: not tracked
- AI Overviews: not tracked
- AI Mode: not tracked
Best for Technical SEO and AI teams who want free BYOK access to brand-visibility data across ChatGPT, Claude and Gemini with full REST API and MCP access included from day one.
The most generous free tier in this set: unlimited tracked prompts across ChatGPT, Claude and Gemini plus full API/MCP access and unlimited seats. Bring your own model API key and pay only that usage.
AI Sightline
AI visibility monitoring and AI traffic analytics across six answer engines, with ranked fix recommendations.
Free, then $29.95/month
Tracks- ChatGPT: on every plan
- AI Overviews: on every plan
- Gemini: on some plans only
- Perplexity: on some plans only
- Claude: on some plans only
- Copilot: on some plans only
Best for A team that wants a free, low-friction first look at AI answer visibility, and that specifically needs server-side AI referral traffic attribution rather than just mention tracking.
Free plan covers just two of the six engines this tool eventually tracks (ChatGPT and Google AI Overviews) at three prompts scanned weekly, though API access (100 calls/month) is included even at $0. Copilot, Gemini, Claude and Perplexity all require at least the $29.95/month Starter tier.
CiteLens
Tracks brand mentions and domain citations inside AI answers, with competitor benchmarks and GEO audits.
Free, then $79/month
Tracks- ChatGPT: on every plan
- Perplexity: on every plan
- Claude: on every plan
- Gemini: on some plans only
- AI Overviews: on some plans only
- AI Mode: not tracked
Best for Small, self-serve teams or GEO agencies that specifically need ChatGPT/Perplexity/Claude mention-and-citation tracking with disclosed uncertainty, and can accept Gemini/Copilot/AI Overviews as roadmap items rather than live coverage.
Free plan covers three AI engines, ten tracked prompts and five GEO audits a month, with no API access below the $599/month Pro tier: the highest API cutoff in this set.
EdenRank
Verified ownerAI citation monitoring with an approval-first execution and verification loop across eight answer engines.
Free, then $59/month
Tracks- ChatGPT: on every plan
- Gemini: on every plan
- Perplexity: on every plan
- AI Overviews: on every plan
- Claude: on every plan
- AI Mode: on every plan
- and 3 more
Best for A brand or growth team that wants a source-verifiable answer-visibility score, with buying-intent diagnosis and an approval-gated execution agent they can switch on.
Free plan tracks only three of the ten answer engines EdenRank eventually covers: Google AI Overviews, AI Mode and Microsoft Copilot, with no ChatGPT, Claude, Gemini or Perplexity. Caps at five active prompts with a weekly digest rather than real-time alerts; the $59/month Starter tier opens the rest.
SEORCE
AI answer-engine visibility tracking, rank tracking, content generation and one-click technical fixes in one platform.
Free, then $49/month
Tracks- ChatGPT: on every plan
- Gemini: on every plan
- Perplexity: on every plan
- AI Overviews: on every plan
- Claude: on every plan
- Grok: on every plan
- and 3 more
Free plan is labeled "forever" rather than a trial and bundles ten AI-visibility prompts a month with core SEO tools like crawling and AutoFix repairs. Every paid step above it, starting at $49/month Lite, adds prompt volume and competitor tracking rather than unlocking AI tracking for the first time.
Browse the full categories
Sources and method
We read every price on the tool's own pricing page.
- AI Sightline: aisightline.com/pricing, checked 19 September 2026
- AthenaHQ: athenahq.ai/plans, checked 20 September 2026
- CiteLens: citelens.ai/pricing, checked 18 October 2026
- EdenRank: edenrank.com/pricing, checked 13 September 2026
- GEO Tool: geo-tool.com/en/geo-tool, checked 18 October 2026
- geoSurge: geosurge.ai/pricing, checked 24 September 2026
- Promptwatch: promptwatch.com/pricing, checked 30 September 2026
- SEORCE: seorce.com/pricing, checked 15 September 2026
- Ubersuggest: app.neilpatel.com/en/pricing, checked 2 September 2026
The digestFree
Who's winning AI citations.
The AI visibility tools we add and the guides we write, by email, at most once a week.
Last issue · No. 1 · 13 October 2026GEO and Content Tools for Agencies, plus 3 new tools
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