CampaignStack vs HeyReach: the honest comparison
HeyReach is the strongest pure LinkedIn sender in the category, and if you compare it to CampaignStack on seat price alone it wins. But sending is one line of the bill: HeyReach assumes you already own signals, scoring, drafting and email elsewhere. CampaignStack is that surrounding layer, and it can even drive HeyReach as the sender. This page lays out both, including the parts where HeyReach is simply better.
Your bottleneck is LinkedIn sender capacity and you already run a GTM stack you like: Clay for scoring, Trigify for signals, Instantly for email, n8n to glue it together. Its pooled sender seats, agency bundles and white-label are built exactly for that shape, and its per-seat price at volume is the best in the category.
Your bottleneck is the thinking, not the sending. CampaignStack decides who to contact (ICP scoring plus live signals), writes the message against your playbook, runs every draft through a critic, and holds anything doubtful in a review queue a human clears. Keep HeyReach as the sender if it is working for you: a webhook step in any workflow pushes the finished lead into a HeyReach campaign.
What each tool actually does
Capabilities as documented by each vendor, checked August 2026. Where HeyReach relies on third-party tools, the cell says so rather than scoring it a miss.
| Capability | HeyReach | CampaignStack |
|---|---|---|
| LinkedIn outreach | The core product: sender rotation across pooled LinkedIn seats, unlimited users free | Native connection requests, messages, InMail and engagement; or keep HeyReach as the sender, fed from CampaignStack workflows |
| Native email sending | No native sending; routes to Instantly, Smartlead or EmailBison with reply-state sync | Gmail sending with its own daily budgets and warm-up, inside the same workflow graph |
| LinkedIn session handling | Extension captures your session, runs it server-side; dedicated static residential proxy per account | Session cookie is consumed into an encrypted browser profile on our server and never stored in the database |
| Account safety limits | Hard caps around 200 actions/day and 100 invites/week, auto-freeze near the limit, 3-hour minimum between steps | Per-action-type daily budgets, usage-based warm-up, weekly caps, business-hours pacing, automatic risk pause |
| AI-drafted messages | Nothing native; agencies wire ChatGPT or Clay in front of it | Every lead-facing message is drafted against your playbook, offer facts and the lead's live context |
| Quality control on AI drafts | No quality loop exists | A critic reads every draft against its full brief and objects; drafts that keep failing are flagged for a human |
| Human review queue | No review surface; reviewing means a person sitting in a chat window | A persistent, skippable queue where you approve, edit, retry or reject, and approving resumes the withheld action |
| Buying signals | None built in; typically rented from a signal tool and piped through n8n | Job changes, title changes, post engagement, funding and headcount changes feed campaign scoring |
| ICP scoring | Computed externally in Clay or Persana, then written into a lead field | Every lead is scored against every campaign's ICP; the score decides campaign membership |
| API and AI agents | Campaign API on every plan plus an official free MCP server | MCP server with 166 tools; an AI agent can operate the entire platform |
| White-label | Domain, logo, colors and client sign-in on agency plans; an extra brand costs $500/mo | Not offered today |
| Pricing model | Per LinkedIn sender seat: $79/mo, $59 at ten or more; agency bundles from $999/mo for 25 senders | $99/mo per client workspace ($82 annual), usage-based credits; connected accounts are not seats |
Where HeyReach is genuinely strong
HeyReach's agency economics are the best in the category. Users are free and unlimited, senders pool across clients, and the 25-sender agency bundle works out cheaper per seat than its own entry plan. Its safety caps cannot be overridden even if you want to, its proxies are dedicated static residential IPs, and it shipped both a public campaign API and an official MCP server before most competitors had either.
If your agency's operating model is a spreadsheet of client sender accounts and a stack of specialist tools around them, HeyReach is a rational choice and this page will not pretend otherwise.
What you end up wiring around it
HeyReach sends. Everything upstream of sending is someone else's product: signal detection comes from a rented alerting tool, fit scoring from Clay or Persana, message drafting from ChatGPT, email from Instantly, and n8n holds the pipeline together. Five subscriptions, five dashboards, and a workflow where a broken webhook fails silently between two vendors who each say the problem is on the other side.
CampaignStack is that upstream layer built as one product. Signals land on the lead record and move its score. The score decides campaign membership. The campaign's playbook drives the draft, a critic challenges the draft, and the review queue holds whatever the critic could not fix. When you approve, the action resumes with the approved text.
None of that requires dropping HeyReach. A workflow webhook step can push the scored, approved lead into a HeyReach campaign through its public API, with the drafted copy riding along as custom variables. Native HeyReach steps are not built yet; the generic webhook step does this today.
Both take credential handling seriously, differently
HeyReach captures your LinkedIn session through its extension and runs it server-side on a dedicated residential proxy, which is the strongest access model among the classic senders. CampaignStack goes one step further on storage: the session cookie is consumed into a gocryptfs-encrypted browser profile on our server and is never written to our database, so a database breach would contain no LinkedIn sessions. The full architecture, including its honest gaps, is on our security page.
One thing neither vendor can offer: LinkedIn's blessing. All LinkedIn automation runs against LinkedIn's User Agreement. Both tools throttle to reduce risk; neither can eliminate it, and anyone who implies otherwise is selling.
CampaignStack vs HeyReach: common questions
Is HeyReach cheaper than CampaignStack for an agency?
At high sender counts, usually yes on the license line: HeyReach's 25-sender bundle is about $40 per sender monthly, and users are free. CampaignStack charges $99 per client workspace with usage-based credits instead of per-sender seats, and replaces the signal, scoring and drafting subscriptions you would run next to HeyReach. Price the whole stack, not the sender line.
What happened to HeyReach on LinkedIn in March 2026?
LinkedIn removed HeyReach's own company page and several of its executives' profiles, which HeyReach confirmed on its blog in late March 2026. The product kept running and there is no public evidence of customer accounts being affected. It is a fact worth knowing when picking a vendor in a category that operates against LinkedIn's terms, and it applies as a risk to every tool in that category, ours included.
Does HeyReach have AI features?
Not natively as of August 2026. Its own content recommends pairing it with ChatGPT and Clay for message generation and scoring, and its MCP server lets an external AI agent drive campaigns. CampaignStack builds drafting, a critic loop and a human review queue into the product itself.
Can I use HeyReach and CampaignStack together?
Yes, and for a HeyReach-heavy agency it is the sane starting point. CampaignStack does the upstream work: sourcing, scoring, signals, drafting and review. A workflow webhook step then pushes the approved lead into a HeyReach campaign through HeyReach's public API, drafted copy included as custom variables. Native HeyReach workflow steps are on the roadmap; the generic webhook step covers the handoff today.
Can I migrate from HeyReach to CampaignStack?
Yes. Export your lead lists as CSV and import them; CampaignStack deduplicates on LinkedIn identity. Connected LinkedIn accounts re-onboard with a session cookie in about two minutes each. Campaign structure does not transfer 1:1 because the tools model campaigns differently, so plan an afternoon to rebuild sequences as workflows.
Get started
Start building your stack.
Your LinkedIn accounts will be safer with CampaignStack than doing it by hand. That's not a pitch. It's a measurable claim.