Key takeaways
- Start from your channels: email only, or email with calls and LinkedIn.
- Enterprise platforms add forecasting and call insight; smaller tools stay lean.
- Deliverability tools matter once you send from several mailboxes.
- CRM sync quality decides whether managers can trust the reports.
What does a sales engagement platform do
A sales engagement platform runs multi-step outreach for sellers: it sends sequence emails on schedule, queues calls and social steps, and logs every touch against the contact. It sits beside the CRM rather than replacing it.
What criteria matter when choosing one
The criteria that matter are channels, team size and how cleanly the platform works with your CRM. A platform built for large teams can feel heavy for five sellers, and a lean email tool will frustrate a phone-first SDR team.
- Channels: email, calls, LinkedIn, SMS or WhatsApp.
- Calling: a built-in or parallel dialler, and call recording.
- Deliverability: warm-up, verification, rotation and sending limits.
- CRM sync: two-way, with clear field ownership.
- Data: whether a contact database is included or you bring your own.
How do the main platforms differ
The main platforms differ in scale and focus. These notes come from each product's own pages.
- Outreach: sequences, the Outreach Voice dialler, conversation intelligence and forecasting for large teams.
- Salesloft: cadences, call recording and coaching, deal inspection and forecasting.
- Apollo: sequences, a dialler and deliverability tools on top of its own contact database, with a free plan.
- Klenty: phone-first cadences with a parallel and power dialler and bidirectional CRM mapping.
- Amplemarket: multichannel sequences, a dialler, deliverability tools, intent signals and the Duo assistant.
- Mailshake: email sequences with A/B testing, warm-up and rotation, and a power dialler on its Sales Engagement plan.
- lemlist: multichannel campaigns with LinkedIn automation, warm-up in every plan and a lead database.
How do you pick between them
Pick by matching the platform to your team's size and main channel, then test it on a real segment. An illustrative team of six SDRs who call as much as they email will learn more from a fortnight with a phone-first tool than from any feature grid.
Sales engagement platforms at a glance
The category each product gives itself and whether its own site lists a free plan.
| Category | Free plan | |
|---|---|---|
| Outreach | Enterprise sales execution platform | No |
| Salesloft | Revenue orchestration platform | No |
| Apollo.io | Sales intelligence and engagement platform | Yes |
| Klenty | Sales engagement platform | No |
| Amplemarket | AI sales platform for outbound | No |
| Mailshake | Cold email and sales engagement | No |
| lemlist | Multichannel cold outreach platform | No |
| Pebbles Ai | Go-to-market workspace; no automated cadences | No |
Plans change; check each product's own pricing page before you decide. Pebbles Ai has no free plan; Pro and Team start with a 1-month free trial.
The products compared
Outreach
Enterprise sales execution platform
An enterprise sales execution platform covering sequences, a dialler, conversation intelligence, forecasting and AI agents, sold per user with AI credit bundles.
Best for: Established sales organisations that run structured sequences, calling and forecasting across large teams.
Pricing model: Amplify Essentials, Core, Plus and Pro; per-user pricing with no platform fees, plus AI credit bundles (10k to 100k). Source: Outreach pricing
Salesloft
Revenue orchestration platform
A revenue orchestration platform with cadences, conversation intelligence, deal management, forecasting and AI agents, sold through a sales conversation rather than published plans.
Best for: Mid-market and enterprise sales teams that want cadences, call insight and forecasting in one platform.
Pricing model: Talk to sales; no plans or prices shown. Source: Salesloft pricing
Apollo.io
Sales intelligence and engagement platform
A go-to-market platform built around a B2B contact and company database it sizes at 240M+ contacts, with prospecting, enrichment, sequences, a dialler, meetings and deal tracking in one product, plus a free plan.
Best for: Sales teams that want a self-serve contact database and a full outbound engine (sequences, calling, deliverability tools) in one subscription, starting free.
Pricing model: Free, Basic, Professional and Custom plans; credits shared across the team and reset monthly; monthly or annual billing with an annual discount. Basic adds email sequencing, Professional adds AI features and call recording, Custom adds SSO and API. Source: Apollo.io pricing
Klenty
Sales engagement platform
A sales engagement platform built around phone-first SDR teams, combining multichannel cadences, an AI parallel and power dialler, email outreach, data credits and CRM integrations.
Best for: SDR teams that make a lot of calls and want dialling, cadences and email outreach in one tool connected to their CRM.
Pricing model: Starter is a flat plan with unlimited users and mailboxes; Growth and Plus are per user per month; all billed annually, with dialling and local presence add-ons. Source: Klenty pricing
Amplemarket
AI sales platform for outbound
An outbound sales platform combining contact data, multichannel sequences, a dialler, deliverability tools, intent signals and an AI assistant, with included contacts on every plan and a free trial.
Best for: Outbound teams that want data, sequencing, calling and deliverability handled by one vendor with an AI assistant in the loop.
Pricing model: Startup, Growth and Elite, each with included users and contacts; Startup is on an annual term, Growth and Elite are custom-priced, and every plan includes a free trial. Source: Amplemarket pricing
Mailshake
Cold email and sales engagement
A cold email and sales engagement tool with automated sequences, warm-up and rotation, an AI email writer, a data finder for emails and a power dialler on its higher plan.
Best for: Small teams and agencies that want to send cold email sequences at volume with deliverability tools built in.
Pricing model: Starter, Email Outreach, Sales Engagement and Agency, billed per user; Data Finder credits and ready-to-use mailboxes are add-ons. Source: Mailshake pricing
lemlist
Multichannel cold outreach platform
A cold outreach tool for email and multichannel campaigns, with a built-in lead database, email and phone finder, LinkedIn automation, warm-up and an AI agent, priced per user.
Best for: Founders and outbound teams running personalised cold email and LinkedIn campaigns who want warm-up and a lead database in the same tool.
Pricing model: Email, Multichannel and Enterprise, priced per user, monthly or annual. Source: lemlist pricing
We make Pebbles Ai. Facts about other products come from their own public pages, checked on .
Where Pebbles Ai fits
- CapabilityOutreach contentAssistants write email and LinkedIn campaigns of up to seven touches, saving email drafts in Gmail or Outlook and drafting LinkedIn messages for you to send. Pebbles Ai is not a sending platform: there is no automated sequence, warm-up or dialler.
- FoundationIntegrationsOutreach, Amplemarket and lemlist are among the MCP servers in the Pebbles Ai catalogue, so assistants can work with them from chat; the catalogue may change.
Common questions
Is a sales engagement platform the same as a CRM?
No. The CRM keeps the record of contacts and deals; the engagement platform runs the outreach and logs it back to that record.
Do small teams need a sales engagement platform?
Not always. A CRM with basic sequences can be enough until outreach volume outgrows it.
Can one platform cover data and sending?
Some do, such as tools with a built-in contact database. Check data quality for your market before relying on it.
About this page. Written by the Pebbles Ai team for people who run sales, marketing and growth. Last updated .
