ReachFast vs Seamless.AI: Which B2B Data Tool Wins in 2026?
If you're weighing ReachFast vs Seamless.AI, you're probably not a 500-person sales org with a $50k data budget. You're a lean team - maybe an agency, maybe a 10-person SDR squad - trying to figure out which tool gives you clean contacts without draining credits on bad data.
Side-by-Side Comparison
| Feature | ReachFast | Seamless.AI | Edge |
|---|---|---|---|
| Database size | 385M+ profiles | 1B+ contacts | Seamless.AI |
| Pricing | $39.99-$1,199/mo | ~$147/mo (Basic, annual); ~$79-$299/user/mo (Pro) | ReachFast (transparent) |
| Accuracy guarantee | Yes (instant credit refund for bad data) | No | ReachFast |
| Phone data | Direct dials only (mobile + work direct) | Mixed (direct dials + office lines) | ReachFast |
| Verification | Real-time at export | Credits spent at reveal | ReachFast |
| Contracts | Month-to-month | Annual billing standard | ReachFast |
| G2 rating | 4.5/5 (12 reviews) | 4.2/5 | ReachFast |
| Free tier | 5 free verified contacts (trial) | 1,000 credits/user/year (granted monthly) | Seamless.AI |
How Data Accuracy Actually Compares
Seamless.AI markets 98% accuracy. The reality is different. Users consistently report email bounce rates of 20-30%, which means roughly one in four contacts you pull is a dead end. We've tested enough B2B data tools to know that the gap between marketed accuracy and real-world bounce rates is where teams hemorrhage budget - and it's the single most frustrating thing about this category. (If bounce is your main pain, start with our email bounce rates benchmarks and fixes.)
ReachFast takes the opposite approach: a 100% accuracy guarantee with instant credit refunds for invalid data. If a number or email doesn't work, you don't pay. Reviewers on Trustpilot praise its accuracy and phone number quality, and G2 and Capterra feedback echoes the same theme.
Here's the math that matters: if 25% of your Seamless.AI reveals bounce, a Basic ~$147/month plan (billed annually) starts behaving like a ~$184/month plan once you account for waste.
Pricing Breakdown
Use ReachFast if you want to know exactly what you're paying before you sign up:
- Entry: $39.99/mo - 1,000 credits
- Starter: $99.99/mo - 3,000 credits
- Professional: $259.99/mo - 9,000 credits
- Enterprise: $1,199.99/mo - custom credits
One email costs 1 credit, but one mobile number costs 10. A team pulling mostly phone numbers will burn through credits fast, so plan accordingly.
Skip Seamless.AI if opaque pricing makes you nervous. The Free plan is public, but everything above requires a sales call. Third-party estimates put Basic around $147/month with annual billing and Pro at $79-$299/user/month, with add-ons for intent data and enrichment inflating the total 40-60%. For large enterprises with 1,000+ employees, estimates reach around $91,900/month. Auto-renewal and cancellation complaints are the single most common issue across review sites - the consensus on r/sales threads about Seamless.AI skews heavily negative on contract terms, and we've seen this pattern play out more times than we can count.
If you're comparing tools mainly on cost-per-lead, it also helps to understand how data enrichment and verification affect your real CAC.
If 25% of your Seamless.AI credits bounce and ReachFast charges 10 credits per mobile, neither tool respects your budget. Prospeo delivers 98% email accuracy and 125M+ verified mobiles with a 30% pickup rate - refreshed every 7 days, not every 6 weeks.
Stop funding bounce rates. Pay $0.01 per verified email instead.
Phone Numbers & Direct Dials
ReachFast focuses exclusively on direct dials - mobile and work direct - and avoids office numbers entirely. The company positions its phone data as 10-40% more accurate than competitors, and Trustpilot reviews strongly back that claim. Seamless.AI's phone data is more of a mixed bag: direct dials sometimes, office lines other times, with no easy way to filter before you spend the credit. If calling is central to your motion, build a tighter cold calling system so bad numbers don’t sink rep time.
If you're an agency billing clients for outreach results, you can't bill for calls that ring a front desk.
Who Should Pick Which
Pick ReachFast
You're an agency, recruiter, or team under 20 reps. You want transparent pricing, a real accuracy guarantee, and you're willing to trade database scale for data quality. ReachFast is particularly strong for the Indian market - Capterra reviewers specifically praise its accuracy there. Be aware that some users report occasional duplicates and incomplete records outside that market, and ReachFast has minimal Reddit presence, so most feedback lives on G2 and Capterra. If you’re still building your outbound motion, start with these sales prospecting techniques to avoid “spray and pray.”
Pick Seamless.AI
You're a large sales org with 50+ reps that needs high-volume list building and a Chrome extension workflow baked into daily prospecting. Seamless.AI's scale is real - 500,000+ users and 1B+ contacts. If your team has the budget to absorb bounce rates and add-on costs, the sheer volume can work. Just go in with eyes open on the contract terms.
Let's be honest: most teams comparing these two tools don't actually need either. If your average deal size is under $15k and your team is under 10 reps, you need verified emails more than you need a massive database. Volume is vanity; deliverability is revenue. (For a broader shortlist, see our best sales prospecting databases guide.)
When Neither Tool Fits
If your core frustration with both tools is bad data - bounced emails, stale numbers, wasted credits - that's the exact problem Prospeo was built to solve. It covers 300M+ professional profiles with 98% email accuracy and 125M+ verified mobile numbers that hit a 30% pickup rate, with data refreshing every 7 days instead of the 6-week industry average. The proprietary 5-step verification process includes catch-all handling, spam-trap removal, and honeypot filtering, so you're not just getting "found" emails - you're getting emails that actually land. If you want the deeper mechanics, read our email deliverability guide and spam trap removal playbooks.
Prospeo starts free with 75 emails and 100 Chrome extension credits per month, scales at roughly $0.01 per email, and requires no annual contracts. Use it as your primary data source or as a verification layer on top of either ReachFast or Seamless.AI. (If you’re evaluating Prospeo head-to-head, see prospeo vs seamlessai and prospeo vs reachfast.)
ReachFast locks direct dials behind 10-credit costs. Seamless.AI hides pricing behind sales calls and annual contracts. Prospeo gives you 300M+ profiles, transparent credit-based pricing, and month-to-month flexibility - no gatekeeping, no auto-renewals.
Transparent pricing, verified data, zero contracts. The way B2B data should work.
FAQ
How does ReachFast compare to Seamless.AI on accuracy?
ReachFast offers a 100% accuracy guarantee with instant credit refunds for bad data. Seamless.AI markets 98% accuracy, but users consistently report 20-30% bounce rates. ReachFast's guarantee shifts the financial risk to the vendor, making it safer for small teams where every credit counts.
Does Seamless.AI publish its pricing?
No. The Free plan is public at 1,000 credits per user/year granted monthly, but Pro and Enterprise pricing requires contacting sales. Third-party estimates put Pro at $79-$299/user/month with add-ons inflating costs 40-60%.
Is there a tool with better email accuracy than both?
Prospeo delivers 98% verified email accuracy with a 7-day data refresh cycle - far faster than the 6-week industry average. It starts free with 75 emails per month, requires no contracts or sales calls, and its proprietary verification catches spam traps and honeypots that other tools miss.