sourcesignal.ai review: pricing, features & alternatives

sourcesignal.ai/pricing (read 24 October 2026). Brand is $99/mo: 1 project, 30 pooled prompts, 3 engines per project, weekly refresh, 100 email verifications a month, 1 inbox, standard reports. Growth is $299/mo: 5 projects, 200 pooled prompts, 6 engines, 500 verifications, 7 inboxes, branded shareable reports, GA4 and Search Console reporting, deep-dive reads up to 300 pages, content plan outlines and drafts. Agency is $999/mo: 15 projects, 750 pooled prompts, 9 engines, 2,500 verifications, 21 inboxes, white-label reports with client access, up to 1,000 pages.

Enterprise is bespoke with custom refresh, an API on request and advanced permissions. Euro and pound prices are also listed, for example Growth at 299 EUR or 219 GBP.

Bubblegum Search sells managed AI SEO and white-label delivery on top of the platform, per its own site. The terms say every email is shown before it sends, the customer connects the mailbox, and the content of outreach is the customer's responsibility.

Every row below is a capability we already listed for sourcesignal.ai. It is the published feature set for this page, not a guess at an unpublished demo. Compare it with the Promptwatch checklist that follows.

On this listing, sourcesignal.ai is a AI visibility platform for Brands and small agencies that want to earn mentions on the pages AI cites, with outreach inside the same tool. What we sourced here: Weekly refresh of tracked prompts across 3, 6 or 9 engines per project by plan; Verbatim answers kept, with mention and citation change over time; Source-page opportunities with scoring and unlimited opportunity discovery; Verified contact emails and drafted pitches, sent only after your approval; Connected outreach inboxes (1, 7 or 21 by plan).

If you buy sourcesignal.ai for the job above, plan a second tool (or Promptwatch) for the layers this listing does not document. Still missing here: Visitor analytics: AI-referred sessions and conversions; Content Agents that plan, write, and publish GEO pages to a CMS with a review inbox; Citation analytics at page, domain, Reddit, YouTube, and offsite level; Prompt volumes, difficulty, query fan-outs, personas, city-level geo; Prompt and citation trends (what changed between checks); ChatGPT Shopping tracking and Ads Radar; Agent Chat, Unified Actions, MCP server / REST API on paid plans. Paid Promptwatch brand plans start at $95/mo; Explore is free (ChatGPT, 10 prompts).

sourcesignal.ai's public pages (and this listing) describe a narrower job than Promptwatch. Most rivals answer whether you were mentioned. Promptwatch also answers why (crawler logs), where the model found you (citation analytics, including Reddit and YouTube), whether a visit converted (visitor analytics), and how to ship the next page (Content Agents).

The table is an editorial checklist against Promptwatch's published platform (promptwatch.com/llms.txt, 2026-08-23). It is not a hidden feature list for this vendor. 'Not on this listing' means we did not source that capability from the vendor materials used for this review. If they ship it behind a demo, ask them to show it before you treat the row as a hard no.