Compare outreach tools.

Comparison of Amplemarket, Apollo, Klenty

Compare by	AmplemarketAI-assisted prospecting and multichannel sales engagement	ApolloB2B data and sales engagement in one platform	KlentyPhone-first sales engagement with multichannel cadences
Best for	Growth-stage teams consolidating data and engagement	Teams that want data and sequencing together	Phone-heavy SDR organizations
Channels	Cold emailLinkedInMultichannelContact dataSales engagement	Cold emailMultichannelSales engagementContact data	Cold emailMultichannelSales engagement
Pricing model	Custom quote	Free tier + paid plans	Per-user subscriptions
Deployment	Cloud platform + extension	Cloud platform + extension	Cloud platform
Core capabilities	B2B data Signals Sequences AI workflows	B2B database Email sequencing Dialer CRM enrichment	Multichannel cadences Dialer CRM integration Analytics
Where it stands out	Connects data, signals, and execution Strong end-to-end outbound scope	Broad prospecting and engagement coverage Reduces the need for a separate data vendor	Strong calling workflow Cadences coordinate several sales touches
What to check first	Less transparent self-serve evaluation May be too broad for a single-channel use case	Credit rules can make total cost harder to model Contact data should still be verified before high-volume sending	More process-heavy than email-only tools LinkedIn execution is not its main differentiator
Source check	Vendor documented · checked 2026-09-17 Read profile →Vendor source ↗	Vendor documented · checked 2026-09-17 Read profile →Vendor source ↗	Vendor documented · checked 2026-09-17 Read profile →Vendor source ↗

Best for

Amplemarket

Growth-stage teams consolidating data and engagement

Apollo

Teams that want data and sequencing together

Klenty

Phone-heavy SDR organizations

Channels

Amplemarket

Cold emailLinkedInMultichannelContact dataSales engagement

Apollo

Cold emailMultichannelSales engagementContact data

Klenty

Cold emailMultichannelSales engagement

Pricing model

Amplemarket

Custom quote

Apollo

Free tier + paid plans

Klenty

Per-user subscriptions

Deployment

Amplemarket

Cloud platform + extension

Apollo

Cloud platform + extension

Klenty

Cloud platform

Core capabilities

Amplemarket

• B2B data
• Signals
• Sequences
• AI workflows

Apollo

• B2B database
• Email sequencing
• Dialer
• CRM enrichment

Klenty

• Multichannel cadences
• Dialer
• CRM integration
• Analytics

Where it stands out

Amplemarket

• Connects data, signals, and execution
• Strong end-to-end outbound scope

Apollo

• Broad prospecting and engagement coverage
• Reduces the need for a separate data vendor

Klenty

• Strong calling workflow
• Cadences coordinate several sales touches

What to check first

Amplemarket

• Less transparent self-serve evaluation
• May be too broad for a single-channel use case

Apollo

• Credit rules can make total cost harder to model
• Contact data should still be verified before high-volume sending

Klenty

• More process-heavy than email-only tools
• LinkedIn execution is not its main differentiator

Source check

Amplemarket

Vendor documented · checked 2026-09-17

Read profile →Vendor source ↗

Apollo

Vendor documented · checked 2026-09-17

Read profile →Vendor source ↗

Klenty

Vendor documented · checked 2026-09-17

Read profile →Vendor source ↗

Use this as a shortlist, not a final verdict. Pricing and limits change, so confirm the details with the vendor and test each product with your own workflow.