Home / Partner Picks / Seamless
Best for: Sales teams needing fast, real-time B2B contact data and LinkedIn prospecting
Last updated: September 05, 2026
Seamless.AI is a real-time B2B contact search engine — instead of serving cached records, it assembles verified emails, phone numbers and company data live as you search, paired with a fast interface and a strong LinkedIn Chrome extension. For high-volume prospecting straight into HubSpot or Salesforce, it's genuinely quick. The honest catch: real-world accuracy runs closer to ~85% email / ~60% phone than the marketed 98%, and billing and cancellation complaints are the most-cited issue in its reviews — read the contract before you commit.
STARTS AT
Free – $147+/mo
A usable free tier with limited credits, then Basic ~$147/mo for ~250 credits (~$0.59/contact). Pro and Enterprise are quote-only via a sales call, with reviewers reporting $150–500/user/mo after negotiation. Credits are the real cost driver — each reveal consumes one and allowances run out fast — and paid plans often sit behind annual contracts, so budget on credits you'll actually use, not the headline price.
Its real-time search. Where many providers serve records from a cached database that can be stale, Seamless.AI runs a live "AI search engine" that assembles contact details as you search, surfacing fresher data. With a fast interface (filter to export in under a minute) and a strong LinkedIn Chrome extension, it's built for speed. For reps prospecting heavily on LinkedIn who want contacts flowing straight into their CRM, that quick, live workflow is the main appeal.
Lower than the marketing suggests. Seamless.AI advertises ~98% accuracy, but real-world testing puts it nearer 85% for emails and ~60% for direct dials, with 20–30% bounce rates commonly cited. "Inaccurate data" is among the most frequent complaints in its thousands of reviews. The data is still useful for volume prospecting, but treat verification as mandatory — run exported lists through an email verifier before any large send to protect your sender reputation.
It's the single most-cited issue across G2, Capterra, Trustpilot and Reddit — ahead of data quality, pricing or features. Users repeatedly report auto-renewal charges without clear notice, difficulty cancelling, being billed after requesting cancellation, and hard-to-exit contracts. It doesn't mean the product fails, but read the contract terms carefully before signing, note your renewal date, get cancellation terms in writing, and be cautious about long annual commitments until you've validated the data for your market.
Both are popular B2B data tools; the choice hinges on transparency and workflow. Seamless.AI leads on real-time search speed and its LinkedIn extension, but pricing above Basic is opaque and billing complaints are common. Apollo is cheaper and far more transparent — a genuine free plan, self-serve pricing and a huge database that also bundles sequencing, though its data likewise weakens outside North America. Live search and LinkedIn prospecting first? Seamless.AI. Transparent, self-serve pricing and an all-in-one platform? Apollo's the safer value pick.
Billing practices, data accuracy and pricing opacity. The cancellation and auto-renewal complaints are well documented and worth taking seriously, real-world accuracy trails the advertised figures enough that manual verification is needed, and Pro/Enterprise pricing hides behind a sales call. Credits also deplete quickly. Prospect at volume, verify your lists and read the contract? Seamless.AI can deliver speed and coverage. Want predictable pricing and easy cancellation? Those trade-offs are significant.
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