This is the core split. Reachium runs every LinkedIn action through the verified LinkedIn API. Lemlist drives LinkedIn through a Chrome extension that, in its own help docs, relies on your browser cookies to recognize your live LinkedIn session. Browser automation runs from your IP, breaks when cookies clear, and leaves the footprint reviewers tie to account restrictions. Reachium's rented accounts add a dedicated proxy and a four-week warmup so your activity does not look like a bot.
Lemlist started as a cold-email tool and LinkedIn is the add-on. Reviewers across G2, Capterra, and Reddit say LinkedIn feels secondary, reporting lacks LinkedIn depth, and the extension can be flaky. Reachium does one channel completely: eight campaign types, AI-personalized connection requests and follow-ups, A/B testing, throttling, and scheduling tuned for LinkedIn limits, not stretched from an email engine that happens to click buttons in your browser.
Lemlist sends outbound. It has no organic content engine, no lead-magnet DM campaigns, and no native booking page. Reachium adds an AI content generator on a four-bucket strategy, a lead-magnet builder with hosting, trigger-keyword detection that auto-delivers the magnet by DM, a content calendar, and built-in meeting booking. So warm inbound replies and outbound both land in one platform instead of stitching a posting tool plus a calendar tool onto Lemlist.
Lemlist bills per user and the real cost climbs with extra mailboxes at about nine dollars each beyond the included senders, enrichment credits, and the dialer and WhatsApp add-ons. Reachium charges one published rate per LinkedIn account, $99 a month or $79 on annual billing and cheaper again once you pass 10, 50, or 100 accounts, and that rate bundles outbound, inbound content, the unified inbox, the network CRM, booking, and an optional Done-For-You tier. You are not assembling a database, a warmup tool, a calendar, and a CRM around it. The platform already is the pipeline.
