MarketBetter vs Seamless.AI: B2B Sales Tools Comparison [2026]
The core difference: Seamless.AI helps you find people you're already looking for. MarketBetter helps you find people who are already looking for YOU.
These tools solve fundamentally different problems. Seamless.AI is a contact database with real-time search—great for building outbound lists. MarketBetter is an SDR workflow platform that identifies anonymous website visitors and turns them into prioritized tasks with AI-powered outreach.
Let's break down where each tool wins.
Quick Comparison
| Feature | MarketBetter | Seamless.AI |
|---|---|---|
| Primary Use Case | Inbound visitor → SDR workflow | Outbound contact search |
| Website Visitor ID | ✅ Yes (person + company) | ❌ No |
| Daily SDR Playbook | ✅ AI-prioritized tasks | ❌ No |
| Smart Dialer | ✅ Built-in | ❌ No |
| AI Chatbot | ✅ 24/7 visitor engagement | ❌ No |
| Email Sequences | ✅ Hyper-personalized | ❌ No |
| Contact Database | ✅ B2B enrichment | ✅ 700M+ contacts |
| Starting Price | $99/month flat | ~$147/month (250 credits) |
| Pricing Model | Flat rate | Credit-based |
What is Seamless.AI?
Seamless.AI is a real-time B2B contact search engine. You search for prospects by title, company, industry, or location, and Seamless uses AI to verify and return email addresses and phone numbers on the spot.
Seamless.AI's strengths:
- 700M+ contacts in their database
- Real-time verification — searches return fresh data
- Chrome extension — prospect directly from LinkedIn
- CRM integrations — Salesforce, HubSpot, Outreach
What Seamless.AI does well: If you know WHO you want to target and need their contact info, Seamless can find it fast.
What is MarketBetter?
MarketBetter is an AI-powered SDR platform that turns website visitors into pipeline. Instead of searching for contacts, MarketBetter tells you who's already interested—visitors on your site right now—and exactly what to do next.
MarketBetter's strengths:
- Website visitor identification — see who's browsing your site
- Daily SDR Playbook — AI-prioritized task list
- Smart Dialer — make calls without leaving the platform
- AI Chatbot — engage visitors 24/7
- Hyper-personalized sequences — AI writes the outreach
What MarketBetter does well: If you want to catch buyers while they're researching and give your SDRs a clear action plan, MarketBetter handles the full workflow.
The Fundamental Difference
Seamless.AI: "Here are 1,000 contacts that match your ICP. Go prospect them."
MarketBetter: "A VP of Sales from a target account just viewed your pricing page. Here's their contact info, a personalized email draft, and they're at the top of today's call list."
Seamless gives you data. MarketBetter gives you data + direction + execution.
Pricing Breakdown
Seamless.AI Pricing
Seamless.AI uses credit-based pricing. Every contact you reveal consumes credits.
| Plan | Price | Credits |
|---|---|---|
| Free | $0 | 50 credits (one-time) |
| Basic | ~$147/month (annual) | 250 credits/month |
| Pro | ~$79-149/user/month | 1,000 daily credits (5+ users required) |
| Enterprise | Custom ($20K-100K+/year) | Custom credits |
The credit burn problem: Users report running out of credits within weeks. One Reddit user shared spending $177/month after top-ups when the plan was supposed to be $79. Another calculated they were paying $0.18 per verified contact.
Additional costs for:
- AI Writer
- Buyer intent data
- Job change alerts
- Prospecting automation
- Data enrichment
Contract concerns: Seamless requires 60-day cancellation notice and auto-renews for a full year. Trustpilot has hundreds of complaints about billing surprises.
MarketBetter Pricing
MarketBetter uses flat-rate pricing starting at $99/month with no credit limits on core features.
- Visitor identification included
- Daily SDR Playbook included
- Smart Dialer included
- AI Chatbot included
- Email sequences included
No surprise overages. No credit burn. One price for the complete SDR workflow.
Feature Deep Dive
Website Visitor Identification
| Capability | MarketBetter | Seamless.AI |
|---|---|---|
| Identify website visitors | ✅ Yes | ❌ No |
| Company-level ID | ✅ Yes | ❌ No |
| Person-level ID | ✅ Yes | ❌ No |
| Real-time alerts | ✅ Yes | ❌ No |
Winner: MarketBetter
Seamless.AI doesn't offer visitor identification at all. It's a search tool, not a tracking tool. MarketBetter shows you exactly which companies—and often which individuals—are browsing your site right now.
SDR Workflow & Prioritization
| Capability | MarketBetter | Seamless.AI |
|---|---|---|
| Daily task list | ✅ AI-prioritized | ❌ No |
| Lead scoring | ✅ Behavior-based | ❌ No |
| Pre-meeting briefs | ✅ Automated | ❌ No |
| Activity tracking | ✅ Full visibility | ❌ No |
Winner: MarketBetter
Seamless finds contacts. What happens after that is on you. MarketBetter tells your SDRs exactly who to contact, in what order, and why—every single day.
Contact Data & Enrichment
| Capability | MarketBetter | Seamless.AI |
|---|---|---|
| Contact database | ✅ B2B enrichment | ✅ 700M+ contacts |
| Real-time search | ✅ Yes | ✅ Yes |
| Email verification | ✅ Yes | ✅ ~85% accuracy |
| Phone numbers | ✅ Yes | ⚠️ "Hit or miss" per reviews |
| Company data | ✅ Yes | ✅ Yes |
Winner: Tie (for different use cases)
Seamless has a massive database optimized for outbound list building. MarketBetter enriches inbound visitors and provides data for prioritized accounts.
Outreach & Engagement
| Capability | MarketBetter | Seamless.AI |
|---|---|---|
| Built-in dialer | ✅ Smart Dialer | ❌ No |
| AI chatbot | ✅ 24/7 engagement | ❌ No |
| Email sequences | ✅ Hyper-personalized | ❌ No |
| LinkedIn automation | ❌ No | ❌ No |
Winner: MarketBetter
Seamless is data-only—you need separate tools for calls, chat, and email. MarketBetter includes the dialer, chatbot, and sequences so your SDRs can act immediately.
What Customers Say
Seamless.AI Reviews
From G2 and Capterra:
"Sometimes the data isn't 100% accurate, so I have to double-check contacts. Also, the pricing can feel a bit high for smaller teams."
"It was very easy to run out of credits quickly."
From Reddit:
"The credit burn rate is real. I was doing about 40 lookups per day and constantly running out mid-month. What finally made me switch was when I calculated I was spending $0.18 per verified contact."
Common complaints:
- Data accuracy issues (especially phone numbers)
- Credits run out quickly
- Contract/cancellation difficulties
- Hidden costs add up
MarketBetter Reviews
From G2:
"MarketBetter tells us who's on our site and exactly what to do about it. Our SDRs actually follow the playbook because it works."
"We went from 20 tabs to one task list. Response times dropped from hours to minutes."
MarketBetter is rated 4.97/5 on G2 with recognition for Best Support, Easiest Setup, and Best ROI.
When to Choose Each Tool
Choose Seamless.AI if:
- You're building outbound lists from scratch
- You know your ICP but need contact info
- Your team has a separate sales engagement platform
- You need a large US contact database
- You're okay with credit-based pricing
Choose MarketBetter if:
- You want to identify anonymous website visitors
- Your SDRs need a daily prioritized task list
- You want calling, chat, and email in one platform
- You prefer flat-rate pricing without credit limits
- You want to catch buyers while they're actively researching
The Bottom Line
Seamless.AI is a contact search engine. It helps you find prospects you're already looking for. Great for building cold outbound lists.
MarketBetter is an SDR workflow platform. It identifies visitors who are already looking at you and turns them into prioritized tasks with built-in outreach tools.
They're not really competitors—they solve different problems. But if you had to choose one:
- For cold outbound at scale: Seamless.AI
- For inbound-to-outbound conversion: MarketBetter
The real question: Would you rather chase cold contacts, or catch warm buyers who are already on your site?
See MarketBetter in Action
Want to see how MarketBetter identifies visitors and prioritizes your SDR's day?
Average response time: under 5 minutes. Because speed-to-lead matters.