You want to know what ChatGPT and Google AI Mode tell shoppers about your store. Every vendor quotes a different entry price, and the headline number hides the scope behind it. One published plan covers a single engine. Another publishes a prompt count, and another sits on top of a subscription you may not already have. Each budget band buys a different scope.
- A $0 plan lets you read the answer before you budget anything. Arenza Free is $0 per month with no credit card. It scans your own brand across two AI assistants: ChatGPT and Google AI Mode.
- Published entry plans differ in scope, so the headline price tells you little. In the $29-$99 band, published scopes run from 15 search prompts to ChatGPT-only tracking with 50 prompts.
- The $189-$399 band is where publishing and deployment should arrive. Arenza Pro at $299/month scans all two AI assistants daily, hosts articles on your own domain, and deploys on-site technical fixes for you.
Quick verdict
What Arenza gives you at each purchasable tier.
| What you get | Free — $0/month | Starter — $49/month | Pro — $299/month |
|---|---|---|---|
| AI assistants scanned | ✅ 3: ChatGPT, Google AI Mode | ✅ Same 3, scanned daily | ✅ Same 3, scanned daily |
| Verbatim AI answers | ✅ Included | ✅ Included | ✅ Included |
| AVS and ACS, shown with coverage | ✅ Included | ✅ Included | ✅ Included |
| Brand accuracy diagnostics | ✅ Severity, frequency, verbatim quote | ✅ Included | ✅ Included |
| Markets | 1 | 1 | 3 |
| Tracked competitors | Not included | ✅ Unlimited, head-to-head | ✅ Unlimited, head-to-head |
| Articles | Not included | ✅ 5/month to your CMS or Shopify blog | ✅ 100/month, hosted on your own domain |
| On-site technical fixes deployed for you | Not included | Not included | ✅ llms.txt, schema, JSON-LD |
| To start | ✅ No credit card | Cancel anytime | Cancel anytime |
Arenza measures four markets in total: US, UK, DE and JP. No single tier covers all four. Free and Starter cover 1 market, and Pro covers 3.
1. Reading the verbatim answer at $0 changes what you buy next
Your first question is never how to optimise. It is what an assistant is saying about your product right now, in its own words.
Arenza's Free plan is $0 per month with no credit card. It scans your own brand across two AI assistants and returns both headline scores. AVS, the Agentic Visibility Score, tells you whether you were found. ACS, the Agentic Conversion Score, tells you whether the answer that mentioned you actually sold you. Free covers all buyer intents, on a weekly scan, in 1 market.
You also get the verbatim AI answers, brand accuracy checks, and the list of brands the assistants cite as evidence. ARC Autopilot — Answer, Reach, Convert — is included from Free. What Free does not include: tracked competitors and comparison, articles, and API access.
The paid bands below carry each vendor's own published list price. Read them as scope, not as ranking.
2. In the $29-$99 band, published plans differ more in scope than in price
| Vendor / plan | Published price | Billing basis | Published scope and limits |
|---|---|---|---|
| Otterly.AI Lite | $29/month | per month | 15 search prompts. Core engines ChatGPT, Google AI Overviews, Perplexity, MS Copilot. Claude, Gemini and Google AI Mode are paid add-ons |
| Arenza Starter | $49/month | per month, cancel anytime | 2 AI assistants scanned daily, 1 market, 5 articles per month |
| Ahrefs Brand Radar Custom Prompts | from $50/month | add-on, included in Ahrefs paid plans Lite and above | Requires an Ahrefs paid plan, so add that plan's price, which is not quoted here. Covers AI Overviews, Gemini, Perplexity, ChatGPT, Copilot, AI Mode. Claude as an add-on |
| Profound Starter | $99/month | billed yearly | Published as ChatGPT tracking only. 50 prompts tracked, 1,500 responses monthly, 1 language, 1 region |
Vendor pricing moves. Check each vendor's current pricing page before you buy.
Arenza Starter is $49/month, cancel anytime. It adds daily scans on all two AI assistants in 1 market. It also adds unlimited tracked competitors with head-to-head comparison. Five articles a month publish to your own CMS or Shopify blog. API and MCP access arrive here, along with Slack and Lark alerts. The MCP server runs at https://api.arenza.ai/mcp and a JSON-RPC adapter at https://api.arenza.ai/rpc.
For a store owner, the practical difference is that comparison and publishing both arrive in this band. You stop reading a dashboard and start changing what an assistant reads.
3. The $189-$399 band is where measurement should turn into deployment
| Vendor / plan | Published price | Billing basis | Published scope and limits |
|---|---|---|---|
| Otterly.AI Standard | $189/month | per month | 100 search prompts. API and MCP access included |
| Ahrefs AI Visibility Index | $199/month | per month | AI Overviews, Gemini, Perplexity, ChatGPT, Copilot, AI Mode. Claude as an add-on |
| Arenza Pro | $299/month | per month, cancel anytime | 2 AI assistants scanned daily, 3 markets, 3 brands, 100 articles per month |
| Profound Growth | $399/month | billed yearly | 3 answer engines: ChatGPT, Google AI Overviews |
Check each vendor's current pricing page before you buy.
Arenza Pro is $299/month, cancel anytime, and includes everything in Starter. It scans all two AI assistants daily, covers 3 markets and 3 brands, and lifts the article allowance to 100 per month. Those articles can be hosted on your own domain at brand.com/blogs/..., which keeps the authority on your property.
On-site technical fixes are deployed for you: llms.txt, schema and JSON-LD. Off-site analysis tells you where to publish next. Arenza Agents and white-label are included, and your team operates the tool.
4. Above $399, the published plans are priced by volume and engine count
Otterly.AI Premium is $489/month for 400 search prompts. Otterly.AI Enterprise is custom from $1,000/month. Profound Enterprise is custom, covering up to 9 answer engines. Other vendors in the category include Semrush AI Toolkit, Conductor, Scrunch and Writesonic.
Arenza's top tier is Performance, which is outcome-based and sales-led at hello@arenza.ai. Arenza runs ARC — Answer, Reach, Convert — end to end, and is paid when the agreed outcome happens. There is no universal percentage. Each success-fee structure is agreed per customer in the contract.
Performance is also the tier built for agencies. The multi-brand portfolio view that puts 10-200 client brands on one screen needs unlimited brands, which is Performance. Pro covers 3 brands, with white-label included from Pro.
5. Compare scope, evidence and action, not the headline number
Four things decide whether a tier is usable for an ecommerce catalogue. Engines: which assistants it reads. Coverage: how many buyer questions and markets it watches. Evidence: whether it shows you the answer text or only a score. Action: whether it only names the problem or also ships the fix.
Arenza measures ChatGPT and Google AI Mode, and is bilingual in zh-CN and en-US. Its four markets are US, UK, DE and JP, with 1 market on Free and Starter and 3 on Pro. Accuracy is a diagnostic surface rather than a headline score. Arenza flags outdated specs, false claims, brand-attribution errors and category miscategorization. Each flag carries severity, frequency and the verbatim quote.
ACS is scored only over the answers where your business actually appeared, and it always ships with its coverage. When a brand is absent, AVS is 0 and ACS is not scored at all. A 0 there would falsely claim the model discussed you and failed to sell you.
6. Check what the tool reads on your storefront, not only in the answer
Robots.txt and llms.txt pass at almost every store, so a tool that audits only those tells you little; ask what it reads on the product page. In the scan behind Arenza's State of Agentic Commerce report (July 2026, 857 Shopify stores), 834 of 857 stores (97.3%) allowed AI crawlers in robots.txt and 783 of 857 (91.4%) had an llms.txt. The product-page checks, run on the 806 stores where a product page could be sampled, split the sample:
- Brand plus a product identifier (SKU, GTIN or MPN): 376 of 806 (46.7%) passed.
- Product image alt text: 301 of 806 (37.3%) passed.
Neither check says whether an assistant recommends a store; both say whether the page gives it something to read, which makes them a fair test at any tier: does the tool audit these fields product by product? The State of Agentic Commerce 2026 write-up walks through the scan, the Shopify apps that optimize product pages for AI answers cover alt text and product schema, and the GEO tool guide on AI-attributed revenue covers tying the work to orders.
Cost math, using published list prices only
Take a store that wants to watch three assistants and act on what it finds.
Start at $0. Arenza Free scans 2 AI assistants across all buyer intents, weekly, in 1 market, with no credit card.
Move to publishing. Arenza Starter is $49/month and includes 5 articles per month plus unlimited tracked competitors. In the same band, Otterly.AI Lite is $29/month for 15 search prompts. Profound Starter is $99/month billed yearly, published as ChatGPT tracking only with 50 prompts tracked.
Move to deployment. Arenza Pro is $299/month and covers 3 markets, 3 brands, 100 articles per month, own-domain hosting and deployed on-site fixes. Otterly.AI Standard is $189/month for 100 search prompts. Ahrefs AI Visibility Index is $199/month. Profound Growth is $399/month billed yearly for 3 answer engines.
The gap that matters is not the monthly figure. At $0 you can already read the sentence an assistant writes about your product. Then you can decide from evidence whether any paid tier is worth a purchase order. Check each vendor's current pricing page before committing, since list prices change.
Arenza meters tracked prompts too, and the number belongs next to everyone else's. Arenza tracks 10 prompts on Free, 30 on Starter and 120 on Pro. Buyer intents are uncapped on every tier, but tracked prompts are not, so compare prompt counts against prompt counts.
The choice comes down to this
If you have never seen what ChatGPT or Google AI Mode says about your brand, start with Arenza Free at $0. Read the verbatim answers before you budget anything.
If you need competitor comparison and want to start publishing to your own CMS or Shopify blog, start with Arenza Starter at $49/month.
If you want the fixes deployed for you, articles on your own domain, and three markets under one login, start with Arenza Pro at $299/month.
If you run 10-200 client brands and need them on one screen with white-label, talk to Arenza about Performance at hello@arenza.ai.
If you would rather pay when the agreed outcome happens, Performance is the tier to ask about.
FAQ
Can I check my AI visibility for free?
Yes. Arenza's Free plan is $0 per month with no credit card. It scans your own brand across 2 AI assistants: ChatGPT and Google AI Mode. Free covers all buyer intents, on a weekly scan, in 1 market. It returns AVS and ACS, the verbatim AI answers, brand accuracy checks, and the brands those assistants cite as evidence. Tracked competitors, articles and API access are not included at $0.
Why do GEO tools at similar prices differ so much?
Because they publish different scopes. Entry plans in this category vary in how many answer engines they read and how many prompts they track. They also vary in how many markets they separate, and in which engines are paid add-ons. Two plans at the same monthly price can differ sharply in what they let you watch. Compare the published scope rather than the headline price.
What does a mid-tier GEO plan need to include for an ecommerce store?
It needs to change something, not only measure it. Look for daily scanning across all two AI assistants, more than one market, and articles hosted on your own domain rather than a vendor subdomain. Look also for on-site technical fixes such as llms.txt, schema and JSON-LD deployed for you. Arenza Pro at $299/month includes all of those, plus 3 markets, 3 brands and 100 articles per month.
Is a visibility score enough on its own?
No. Being found and being sold are two different outcomes. Arenza reports AVS, the Agentic Visibility Score, for whether you were found. It reports ACS, the Agentic Conversion Score, for whether the answer that mentioned you actually recommended you. ACS is scored only over the answers where your business appeared, and it always ships with its coverage. A score measured over a handful of answers rests on thin evidence, while the same score over most answers rests on broad evidence.
When does outcome-based pricing make more sense than a monthly plan?
When you want the work run for you rather than operated in-house. Arenza's Performance tier is outcome-based and sales-led, and Arenza is paid when the agreed outcome happens. There is no universal percentage, because each success-fee structure is agreed per customer in the contract. Monthly plans make more sense when your own team will operate the tool.