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SlateIndex
Relay.appAI Agents
vs
Retell AIAI Voice Agents That Automate Phone Calls
Comparison · AI Agents · weekly run Nov 3

Relay.app vs Retell AI

Which one do AI engines recommend, and how do they differ on price, fit and features?

The short answer

Retell AI is the stronger AI pick in AI Agents: it has a visibility score of 2 versus 0 for Relay.app.

Choose Relay.app if…

  • You need SOC 2 Type 2 coverage

Choose Retell AI if…

  • You want the brand AI engines rank higher (2 vs 0)
  • You need a self-hosted or on-premises option
  • You need HIPAA or SOC 2 Type II or GDPR or ISO 27001 coverage
  • Highly rated by developers and SMBs

AI visibility side by side

Latest weekly run · Nov 3

Metric Relay.app Retell AI
Visibility score0%2%
Change vs last weekNewNew
Rank in AI Agents#79#42
Share of voice0%0.5%
Mentions this run03
Positive in AI answers——

The stronger value in each row is marked with a ✓.

Visibility score trend

Weekly runs over the last 60 days

0%25%50%75%100%Nov 3Relay.app 0%

Relay.app 0pp · Retell AI 0pp over 0 weekly runs.

Engine by engine

Retell AI leads on 3 of 3 engines

ChatGPT
0%
3.1%
AI Mode
0%
2%
Perplexity
0%
0.9%
Relay.appRetell AI

Head to head in AI answers

0 engine answers name both brands

0Relay.app ranked higher
0Retell AI ranked higher

Features, pricing & fit

DimensionRelay.appRetell AI
Pricing model—Usage-based
Entry price—Contact sales
Free plan—Yes
DeploymentCloud-onlyCloud platform, with enterprise on-premises deployment available
ComplianceSOC 2 Type 2HIPAA, SOC 2 Type II, GDPR, ISO 27001
Support—Community and email support, 24/7 omnichannel support with dedicated portal (Enterprise), Dedicated implementation support (Enterprise), Named account manager (Enterprise)
Founded20212023
HeadquartersSan Francisco, CARedwood City, California
Employees—51–200
FundingSeedSeed · $5M raised
Best for—Businesses that run high call volumes in healthcare, insurance, financial services, logistics and similar fields, and teams that want to build and change voice agents themselves.

Plans side by side

Relay.app

Pricing not available.

Retell AI

Pay as you go$0per minute, $0.07-$0.31 for voice agents
EnterpriseCustomcustom pricing
Retell AI pricing

Pros and cons

Themes from the AI answers that mention each brand

Relay.app

Profile in progress.

Retell AI

  • Highly rated by developers and SMBs
  • One of the highest customer star ratings

    Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run

    Cite as: SlateIndex, “Relay.app vs Retell AI”, https://slateindex.ai/compare/relay-app-vs-retell-ai, data of Nov 3, 2026. Licence: CC BY 4.0.