The best sales engagement platform depends on your CRM and on LinkedIn. OXYGEN runs email, LinkedIn and WhatsApp in one sequence with LinkedIn automated in the cloud, a CRM built in and no seat per user, from $49 a month. Outreach and Salesloft suit large teams on Salesforce or Dynamics, HubSpot Sales Hub suits teams on HubSpot, Apollo brings a contact database, and lemlist and Reply.io are self-serve multichannel tools.
By Tim Scheuer, Co-founder of Oxygen · Checked October 16, 2026
A sales engagement platform runs the sequences reps send: emails, calls, LinkedIn touches and tasks in a set order, stopped when a prospect replies, with every touch logged to the CRM. The platforms below differ in five ways: which channels share one sequence, whether LinkedIn steps send themselves or wait as tasks for a rep, where the contact data comes from, whether the CRM is built in or synced, and whether you pay per seat or per workspace. LinkedIn is where they differ most: on Outreach, HubSpot and Apollo a LinkedIn step is a task a rep completes by hand.
| Tool | Channels in one sequence | LinkedIn steps | Contact data | CRM | How you pay | Starts at |
|---|---|---|---|---|---|---|
 OXYGENAgentic marketing and sales platform | Email, LinkedIn and WhatsApp in one sequence; calls in beta | Automated in the cloud; $34 a month per account | Waterfalls across 17 email providers; no database | Built in, with a deals pipeline; two-way HubSpot sync | Per workspace; no seat per user | Free plan; paid from $49 a month |
 OutreachSales engagement and AI agents for large teams | Email, calls through its dialer, and LinkedIn tasks | Manual tasks in Sales Navigator, Team or Enterprise | Data enrichment in every package | Two-way Salesforce and Dynamics sync; deal management in some packages | Per seat, plus AI credits | Quote only: seats plus AI credits |
 SalesloftSales engagement and revenue platform | Calls, texts, emails and LinkedIn touchpoints | Research, InMail and connection requests through Sales Navigator | AI enrichment of your records | Deals on the platform; Salesforce and Dynamics in its data layer | Quoted by sales | Quote only |
 HubSpot Sales HubCRM with sales sequences | Automated email, plus call, email and LinkedIn tasks | Task reminders through Sales Navigator; a rep sends | No contact database on its Sales Hub page | The HubSpot CRM itself, free | Per seat; a Sales seat for sequences | Free CRM; sequences from $100 a seat a month on Professional |
 Apollo.ioContact database with sequences | Email, calls and LinkedIn tasks; no SMS or WhatsApp steps | Manual tasks on every plan | 240M contacts and 30M companies of its own | Deals on a pipeline; two-way Salesforce and HubSpot sync | Per seat | Free; Basic $65 a seat a month, or $49 billed yearly |
 lemlistMultichannel sequencer | Email, LinkedIn, calls, WhatsApp and SMS | Automated through a Chrome extension; one account per seat | 450M+ verified contacts in the product, on credits | Contacts and companies with stages; no deals pipeline | Per user on Multichannel; per team on Email | $69 a month for email only; Multichannel $109 a user |
 Reply.ioMultichannel sales engagement | Email, LinkedIn, calls, SMS and WhatsApp tasks | 1 account per user on Multichannel; $69 add-on otherwise | Search over 1 billion contacts, on credits | None; two-way Salesforce, HubSpot and Pipedrive | Per user | $99 per user a month on Multichannel, or $89 billed yearly |
OXYGEN Agentic marketing and sales platformBest for: B2B GTM teams that want email, LinkedIn and WhatsApp in one sequence, LinkedIn automated, and a CRM, with no seat per user.
OXYGEN runs email, LinkedIn and WhatsApp steps in one sequence, branches on connection state, signals or lead data, and stops a lead when they reply on any channel. LinkedIn runs in the cloud with no browser extension: visits, invites, messages, InMail, follows, likes and comments, at $34 a month per connected account. Replies land in one inbox and on a built-in CRM with a deals pipeline, and leads come from waterfalls across 17 email providers. Your team works in the web app, or your own AI agent runs it through the MCP server or the CLI.
Outreach Sales engagement and AI agents for large teamsBest for: Large sales teams on Salesforce or Dynamics that want sequences, a dialer, AI agents and forecasting from one vendor.
Outreach runs sequences across email, calls through its own dialer and LinkedIn tasks, with AI agents for research, personalization and deals, and deal and pipeline management in some packages. It syncs both ways with Salesforce and Microsoft Dynamics 365. A LinkedIn step is a task a rep completes in LinkedIn Sales Navigator, which needs a Team or Enterprise license. Pricing combines a fee per seat with the AI credits you use, quoted on request.
Salesloft Sales engagement and revenue platformBest for: Sales teams that want cadences with calls and texts, AI agents and forecasting from one vendor.
Salesloft's Cadence counts calls, emails and LinkedIn touchpoints in one cadence, and its dialer calls and texts buyers from anywhere. LinkedIn research, InMail and connection or introduction requests go through LinkedIn Sales Navigator. AI agents identify buyers, research accounts and draft emails, and deals, conversation intelligence and Clari Forecast sit on the same platform, with Salesforce and Microsoft Dynamics in its data layer. Every price comes from sales.
HubSpot Sales Hub CRM with sales sequencesBest for: Teams already on the HubSpot CRM that want sequences inside the tool they use.
HubSpot Sales Hub adds sequences to the HubSpot CRM on its Professional and Enterprise plans, for users with a Sales seat. A sequence mixes automated emails with manual email, call and other tasks, and LinkedIn InMail and connection requests are task reminders a rep sends through the Sales Navigator integration. Each sequence holds up to 10 email templates. The CRM itself is free, and Professional starts at $100 a seat a month.
Apollo.io Contact database with sequencesBest for: Teams that want a large contact database and sequences in one tool, and send LinkedIn steps by hand.
Apollo pairs its own database of 240M contacts and 30M companies with sequences of emails, calls and LinkedIn tasks, a dialer from Basic, and a CRM with deals on a pipeline. A reply ends the sequence. Every LinkedIn step is a manual task: Apollo prepares the request or message and a rep sends it on LinkedIn. It is priced per seat, with emails at 1 credit and mobile numbers at 8, and syncs both ways with Salesforce and HubSpot.
lemlist Multichannel sequencerBest for: Small sales teams that want email, LinkedIn, calls and WhatsApp in one sequence, with a contact database.
lemlist runs email, LinkedIn, calls, WhatsApp and SMS in one sequence, with branches, A/B tests and a stop when a lead replies by email or LinkedIn. LinkedIn steps run through the Chrome extension its LinkedIn automation needs, one LinkedIn account per seat at $109 a user a month on Multichannel. A database of 450M+ verified contacts sits in the product, and contacts and companies have lifecycle stages, but there is no deals pipeline.
Reply.io Multichannel sales engagementBest for: Teams that want calls, SMS and WhatsApp tasks in the same sequence as email and LinkedIn.
Reply.io mixes email, LinkedIn, calls, SMS and WhatsApp in one sequence, with WhatsApp as semi-automated tasks. Mailboxes come with warm-up and can be bought in the app, a search over 1 billion contacts runs on credits, and Salesforce, HubSpot and Pipedrive sync both ways. Multichannel includes 1 LinkedIn account per user, at $99 a user a month; its AI SDR, Jason, starts at $500 a month through a sales demo.
| If you need | Pick |
|---|---|
| LinkedIn automated next to email and WhatsApp, a CRM included, no seat per user | OXYGEN |
| A large team on Salesforce or Dynamics, with a dialer, AI agents and forecasting | Outreach |
| Cadences with calls and texts, and forecasting from the same vendor | Salesloft |
| Sequences inside the HubSpot CRM you already use | HubSpot Sales Hub |
| A contact database and sequences from one vendor | Apollo.io |
| Self-serve multichannel with a contact database, for a small team | lemlist |
| Calls, SMS and WhatsApp tasks in the same sequence | Reply.io |
A sales engagement platform runs the sequences reps send: emails, calls, LinkedIn touches and tasks in a set order, stopped when a prospect replies, with every touch logged to the CRM. It sits between the contact data and the CRM and decides who gets which touch on which day.
OXYGEN runs LinkedIn steps in the cloud with no browser extension, lemlist runs them through its Chrome extension, and Reply.io includes a LinkedIn account per user on Multichannel. On Outreach, HubSpot and Apollo a LinkedIn step is a task a rep completes by hand, and Salesloft's LinkedIn steps go through Sales Navigator.
Most charge per seat: HubSpot Sales Hub Professional starts at $100 a seat a month, Reply.io Multichannel at $99 a user, lemlist Multichannel at $109 and Apollo Basic at $65 ($49 billed yearly). Outreach and Salesloft quote on request. OXYGEN charges one plan per workspace from $49 a month with no seat per user, plus $34 a month for each LinkedIn account you connect.
Outreach and Salesloft work alongside Salesforce or Dynamics, and Reply.io syncs with Salesforce, HubSpot and Pipedrive, so you keep a CRM. lemlist keeps contacts and companies but no deals pipeline. HubSpot Sales Hub is a CRM, Apollo includes deals on a pipeline, and OXYGEN includes a CRM with a deals pipeline on every plan and syncs both ways with HubSpot.
Yes. HubSpot sequences send LinkedIn steps as task reminders, so teams that want them automated add a tool that syncs with HubSpot. OXYGEN syncs both ways with HubSpot and runs LinkedIn in the cloud next to email and WhatsApp; lemlist and Reply.io also sync both ways with HubSpot.
Outreach syncs both ways with Salesforce and Microsoft Dynamics 365, Apollo and Reply.io sync both ways with Salesforce and HubSpot, and Salesloft names Salesforce and Dynamics in its data layer. OXYGEN has no Salesforce sync: it includes its own CRM and syncs both ways with HubSpot, so a team that runs on Salesforce should pick one of the others.
OXYGEN runs from the web app, its Copilot or your own AI agent through the MCP server and the CLI. Outreach offers an MCP server and client with research, personalization and deal agents, Salesloft's agents research accounts and draft emails, and Reply.io sells an AI SDR, Jason, through a sales demo.
We make OXYGEN, so it comes first and you should read this as an interested list. The other tools are the ones teams compare most often when they pick a sales engagement platform. Each one is described from its own website, pricing page and docs, checked on the dates below; OXYGEN's facts and prices come from the product and its live price list. Prices are the cheapest self-serve plan each vendor lists.
The products named here are trademarks of their owners and are not affiliated with OXYGEN. Something out of date? Tell us.