LeadGen.tools and Seamless.AI both come up when people look for a way to find prospects and reach them. Here is how they compare on price, data, sending, channels and AI, using facts from each vendor’s own site, last checked October 1, 2026.
Short answer. LeadGen.tools is best for small teams, agencies and founders who want customers found and emails written for them, especially when selling to small or local businesses. Seamless.AI is best for sales teams that want a large contact search engine with dialing and are comfortable getting a custom quote.
At a glance
Pricing
| LeadGen.tools | Seamless.AI | |
|---|---|---|
| Starting price | Free plan, then from $24.99/month | Free plan; paid plans by quote |
| Free plan | Yes: a real campaign to 10 prospects with follow-ups, no card | Yes. Free for up to 50 credits. |
| Trial | Not listed on its site | Not listed on its site |
| Plans | Free: $0 · A real campaign to 10 prospects with follow-ups, no card Personal: $24.99/month · Unlimited campaigns and follow-ups, up to 3 decision makers per company, autopilot, no LeadGen.tools signature Business: $59.99/month · 3 sending inboxes, 3 brands, 3 collaborators | Free: $0 · Up to 50 credits (homepage: 'Seamless.AI is free for up to 50 credits') Paid plans: custom · Prices not published; the pricing page asks how many contacts you need per month and offers custom pricing for unlimited users, bulk credits, prospector, job changes, buyer intent and enrichment |
Features side by side
| LeadGen.tools | Seamless.AI | |
|---|---|---|
| Lead data | Finds businesses live for any niche and city, plus the decision maker with a verified email | Homepage states 1.8B+ verified business emails and 414M+ phone numbers, found by a real-time search engine; 100% credit-back guarantee for invalid emails. |
| Warm-up | Not listed on its site | Emailing page says you can connect your email and warm your inbox safely. |
| Sending inboxes | Gmail and SMTP; 1 inbox (Free, Personal), 3 (Business) | Not listed on its site |
| Decision makers' profiles and connection notes; your own AI agent sends them in your browser with daily limits | Chrome extension pulls contact data on LinkedIn; Pitch Intelligence drafts personalized DMs and comments. No LinkedIn automation described. | |
| Calls, SMS, WhatsApp | WhatsApp link with the message typed for each decision maker | Calling (Seamless Connect): click-to-call, power and parallel dialing, voicemail drops, local presence, call recording; available on specific plans or as add-ons, telephony usage typically extra. SMS and WhatsApp not mentioned. |
| AI writing | Writes a different email for every prospect, from your website | AI-powered writing and templates for emails; Pitch Intelligence; AI Assistant and AI agents. |
| Replies / inbox | Every reply sorted by AI: interested, meeting, question, not interested, out of office | Not listed on its site |
| CRM | Push prospects to HubSpot, Pipedrive and lemlist | Salesforce, HubSpot, Microsoft Dynamics, Zoho, Keap, Pipedrive, Insightly, Close, Copper, Cloze, Sugar, Freshsales; access depends on plan and usage may consume credits. |
| API | REST API and an open AI agent skill | API offered for automation, enrichment and campaigns; MCP and Claude / ChatGPT integrations listed. |
| Agencies | Teams and brands on Business | Not listed on its site |
Facts from each vendor’s own pricing and product pages, last checked October 1, 2026: LeadGen.tools, Seamless.AI. Prices change often, so check before you buy.
Where LeadGen.tools stands out
- Chooses your best customer segments from your website, never your competitors
- Finds small and local businesses that B2B databases often miss
- Finds the person who decides at each company, verified emails only
- A different email for every prospect, plus follow-ups that stop on any reply
- Pay per prospect contacted (follow-ups included), free plan to start
Limitations
- No inbox warm-up included
- Sends from Gmail or SMTP (no Microsoft 365 connection yet)
- Fewer sending inboxes per plan than volume-focused senders
- No built-in dialer or SMS
Where Seamless.AI stands out
- Very large stated data coverage (1.8B+ emails, 414M+ phone numbers)
- Free account with 50 credits
- Credit-back guarantee for invalid emails
- Long list of native CRM integrations
- Calling, emailing, buyer intent and job change tracking in one platform
Limitations
- No prices published; paid plans require a quote
- Calling features are plan-specific or add-ons and telephony minutes typically cost extra
- Integration access depends on plan and usage can consume credits
- No LinkedIn automation, SMS or WhatsApp mentioned
FAQ
Is LeadGen.tools cheaper than Seamless.AI?
By listed starting price: LeadGen.tools free plan, then from $24.99/month, Seamless.AI free plan; paid plans by quote. Limits per plan differ, so compare what each plan includes.
Does LeadGen.tools or Seamless.AI have a free plan?
LeadGen.tools: Yes: a real campaign to 10 prospects with follow-ups, no card. Seamless.AI: Yes. Free for up to 50 credits..
What is the main difference between LeadGen.tools and Seamless.AI?
They differ most on: warm-up, sending inboxes, replies / inbox, agencies. LeadGen.tools is best for small teams, agencies and founders who want customers found and emails written for them, especially when selling to small or local businesses. Seamless.AI is best for sales teams that want a large contact search engine with dialing and are comfortable getting a custom quote.
Related comparisons
See it on your own business. Paste your website and watch LeadGen.tools find your best customers, the person who decides at each one, and write the emails. Free, no card. Analyze your website →