
Third Hemisphere alternatives
Tools that do what Third Hemisphere does, found by what they say they do rather than by shelf. Among the equally alike, the most used come first. Each line says how it differs from Third Hemisphere.
Read 2026-11-03
With a free plan or free to use: Pixelmojo, SurfacedBy.
- #1

Addlly AIMarketing
Audits and optimizes brand visibility in AI search engines and chatbots through generative engine optimization.
Also: Analytics, SearchMore widely used
20.3kActiveFrom ≈ $228/mo - #2

VisiblSecurity
Runs a one-off audit of how seven AI answer engines mention your brand, which competitors appear, and which sources they cite.
Also: AnalyticsMore widely used
54 linking domainsFrom $39 once - #3

TreyciMarketing
Measures how often your brand appears in AI chatbot answers to buying intent questions across ChatGPT, Perplexity, Gemini, and Grok.
Also: AnalyticsMore widely used
8ActiveFrom $99/mo - #4

PixelmojoMarketingMCP · open
Audits how AI engines read and cite your brand, identifies visibility gaps, and provides fixes.
Free planAlso: Analytics, Compliance
137ActiveFrom $4 per use2024 - #5

VantaSecurityMCP · sign-in
Automates compliance evidence collection and audit preparation across SOC 2, HIPAA, ISO 27001, and other frameworks.
Also: Compliance, Workflow automationMore widely used
71.1kActiveContact sales - #6

HyperproofSecurity
Automates governance, risk, and compliance workflows across multiple frameworks with control mapping and evidence collection.
Also: Compliance, Workflow automationMore widely used
61.7kActive - #7

SurfacedByMarketingMCP · open
Tracks how AI answer engines mention and cite a brand, then drafts briefs, replies and outreach for missing coverage.
Free planAlso: Monitoring, Analytics
3ActiveFrom $24/mo - #8

SecureframeSecurity
Automates compliance tasks and evidence collection to help organizations meet security standards like SOC 2, ISO 27001, and HIPAA.
Also: Compliance, MonitoringMore widely used
43.5kActiveFrom $7,500/yr2020 - #9

SentinelOne Purple AISecurity
Detects and responds to endpoint threats using behavioral AI and autonomous remediation across devices and identities.
Also: Security, AnalyticsMore widely used
453kActiveFrom $179.99/yr2013 - #10

SEOcrawl AIDataMCP · sign-in
Crawls websites for SEO audits and tracks how ChatGPT, Claude, Gemini, Perplexity and Copilot mention your brand.
Also: Analytics, MonitoringMore widely used
2.3kActiveFrom ≈ $55/mo
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How this list is made: the words Third Hemisphere is described with (what it does, for whom, what it is used for) are matched against every tool in the Atlas. A tool on the same shelf, or doing the same kind of work, counts for a little more. Nothing here is paid for.
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