Otterly.AI vs SiteSignal (2026): which should you pick?

Pick Otterly.AI if

• Fits if a daily read on ChatGPT, Perplexity, AI Overviews and Copilot is what you need
• Works for agencies that brand client reports through Looker Studio, from Standard

Look elsewhere if

• Skip it if Gemini, AI Mode or Claude matter to you, as they're paid add-ons on every plan, and all seven engines add $227 a month on Standard
• Not for you if you need white-label reports, as there aren't any
• Tight if you start on Lite, with 15 prompts, one workspace, no API or MCP, and no extra prompt packs
• Pricey if you outgrow Lite, as Standard is $160 a month yearly and extra prompts are $99 per 100, with 300 at most before Premium at $422
• Watch out: Claude is tracked through its API using the Haiku model, and crawler analytics needs server log files you upload

Pick SiteSignal if

• Fits if you're an agency adding AI search to what you sell, under your logo
• Works for businesses that want AI's answers about their prices and services checked daily

Look elsewhere if

• Pricey if you're one small business, at $299 a month for a single domain
• Tight if you have lots of questions to track, at 30 a domain, or 60 per client on Agency
• Skip it if Claude's answers matter, as Claude tracking is still to come
• Watch out: the $89 and Agency plans need your own AI keys, about $1 per question per engine a month on top
• Watch out: other countries are Agency only, at $49 a month per country per client domain

Otterly.AI

• Google AI Mode and Gemini cost $9, $59 or $149 a month each by plan, and Claude $29, $109 or $439, so all seven engines on Standard add $227 a month.
• Google AI Mode, Gemini and Claude are paid add-ons on every plan; Claude is tracked through its API using the Haiku model.
• Lite has one workspace; extra prompts are sold in packs of 100 on Standard and Premium only.
• There is no white-label option; the Looker Studio connector is the suggested way to brand client reports.

SiteSignal

• Tracks ChatGPT, Gemini, Perplexity and Google AI Overviews; the vendor says Claude is coming soon.
• On BYOK plans you pay the AI provider too, which SiteSignal estimates at about $1 per question, per engine, per month.
• Tracking in extra countries is Agency-only, at $49 a month per country per client domain.
• Plans include 30 or 60 buyer questions a month, far fewer than prompt-based tools that track hundreds.

Otterly.AI

Daily prompt monitoring

Tracks set prompts every day and reports brand mentions, coverage, share of voice and sentiment per engine, in more than 70 countries.

Link citation analysis

Shows which URLs and domains each AI engine cites for a prompt, with a domain ranking to find the sources worth targeting.

AI prompt research

Suggests prompts customers are likely to ask AI search tools about a brand or topic, as a starting set to monitor.

GEO audit

A technical audit of site URLs for generative engine readiness; Lite allows 1,000 audited URLs a month, Premium 10,000.

Agent Analytics

Reports AI agent and crawler visits to your site from server log files you upload.

API, MCP and Looker Studio

An API and MCP server give programmatic access to the data; the Looker Studio connector comes with Standard and above.

SiteSignal

Weekly action plan

Each domain gets a ranked list of fixes every week, each tagged for a developer or a writer and linked to the AI answer behind it.

Hallucination checks

Checks key facts such as prices, services, locations and contact details against what each AI engine says, daily, and flags wrong or missing answers.

Prompt diagnosis

For each buyer question, shows visibility, mention, recommendation, ranking and citation rates per engine, with the full answer and 30 days of history.

Query fan-out

Lists the searches ChatGPT, Perplexity and Gemini run before answering a question, tagged by intent and funnel stage, for use as content briefs.

Site health and Google data

Weekly site audits, uptime, speed and SSL checks, plus read-only Search Console and GA4 data with alerts on up to 50 keywords.

White-label reports and proposals

The Agency plan puts the agency's logo and colors on reports and makes up to 50 branded proposals a month, also from Claude through an MCP server.

Otterly.AI

• Lite$25

  per month, billed yearly ($29 billed monthly)

  15 prompts tracked daily on ChatGPT, Google AI Overviews, Perplexity and Copilot, unlimited team members, one workspace. No API, MCP or extra prompts.

• Standard$160

  per month, billed yearly ($189 billed monthly)

  100 prompts, API, MCP and Agent Analytics. Extra prompts are $99 per 100 a month, up to 300 more before you must move to Premium.

• Premium$422

  per month, billed yearly ($489 billed monthly)

  400 prompts with everything in Standard. Extra prompts are $99 per 100 a month.

• EnterpriseCustom

  From 1,000 prompts, with SSO, custom terms, a quarterly GEO health check and a dedicated success manager.

SiteSignal

• Agency partner$0

  For agencies: up to 10 branded AEO reports a month on prospects, showing which competitors AI names instead.

• SMB (BYOK)$89

  per month for 1 domain and 30 buyer questions

  Uses your own AI provider keys, paid to the provider separately. Weekly action plan, daily fact checks, site audits and unlimited seats.

• SMB$299

  per month for 1 domain and 30 buyer questions

  Same features as SMB (BYOK), but SiteSignal pays for the AI access, so there are no keys to set up and no usage bill.

• Agency$399

  per month for 3 client domains, with your own AI keys

  60 questions per client, white-label reports, 50 branded proposals a month and a multi-client dashboard. Extra domains $89 a month each.