LogValid vs Seamless.AI: Different Tools, Different Jobs
Why This Comparison Is Apples to Oranges
The real question isn't "which is better?" It's "do I need both?"
Probably yes, because they solve different halves of the same problem. B2B contact data decays roughly 30% per year - people change jobs, companies rebrand, phone numbers rotate. A freshly built Seamless.AI list will still have bad emails in it, and LogValid can't help you build that list in the first place. Two tools, two bills, one clunky workflow that nobody on your team actually wants to maintain.
LogValid at a Glance
LogValid is a straightforward email verification platform founded in 2024. Upload a list via CSV or API, and it checks each address against spam traps, catch-all servers, disposable domains, and syntax errors, then returns a clean file.
- Free plan: 500 verification credits
- Paid: Starts at $1 for 2,000 credits - genuinely cheap
- Features: Bulk verification, single-email checks, API integration, disposable email detection
Here's the thing: LogValid is too new to evaluate with confidence. It has a 3.7 on Trustpilot from one review, a 5.0 on SourceForge from three reviews, and zero Capterra reviews as of early 2026. The tool looks solid for basic verification, but there's almost no independent validation yet. Use it if you've got an existing list that needs cleaning on a budget. Skip it if you need to find contacts or want a battle-tested tool with deep community feedback.
LogValid verifies. Seamless.AI finds. Neither does both. Prospeo combines contact discovery with 5-step email verification - 98% accuracy, 7-day data refresh, and native CRM integrations. No CSV exports, no second tool, no annual contracts.
Replace two tools and two bills with one platform at $0.01/lead.
Seamless.AI - Powerful but Leaky
Seamless.AI is a contact discovery platform with a 4.4/5 rating on G2 from 5,319 reviews. The database covers 1.7B+ contacts and 150M company profiles, and the Chrome extension makes prospecting relatively painless.
The accuracy story is where things fall apart. Seamless.AI markets itself as 98% accurate, but 20-30% email bounce rates are a common complaint in reviews - and industry best practice is keeping total bounces under 2% (and industry best practice is keeping total bounces under 2%). That gap is enormous. You'll need a separate verification step no matter what.
Pricing isn't published, which is frustrating on its own. Based on user-reported numbers: the free plan gives 50 credits, Basic runs ~$147/mo on annual billing, Pro is ~$79/user/mo with 1,000 credits, and Enterprise starts at $149+/user/mo with a 5-user minimum (~$745/mo floor). Credits burn fast - extras cost $49 per 500. Cancellation and auto-renewal headaches are a recurring theme on Reddit too.
If your team is small enough that 1,000 credits per month feels like a lot, Seamless.AI is probably overkill. The pricing structure rewards high-volume teams and punishes everyone else.
Side-by-Side Comparison
| LogValid | Seamless.AI | Prospeo | |
|---|---|---|---|
| Category | Email verification | Contact discovery | Finding + verification |
| Database | N/A (verify your lists) | 1.7B+ contacts | 300M+ profiles |
| Email accuracy | ~95-99% (industry range) | ~85% (user-reported) | 98% verified |
| Free tier | 500 credits | 50 credits | 75 emails + 100 ext. credits/mo |
| Entry price | $1 / 2,000 credits | ~$147/mo (annual) | ~$0.01/email |
| Contracts | None | Annual (often) | None |
| Pricing published | Yes | No | Yes |
| G2 rating | N/A | 4.4/5 (5,319) | N/A |
| Best for | Cleaning existing lists on a budget | Finding contacts at scale | Finding + verifying in one step |
The Workflow Problem
Most teams end up building this chain: find contacts in Seamless.AI, export to CSV, verify in LogValid, download the clean list, push to CRM. Three tools, two bills, one manual handoff that breaks constantly. We've seen this pattern dozens of times - sales reps already spend only about 28-30% of their time actually selling, and this kind of tool juggling eats the rest.
Let's be honest: nobody got into sales to manage CSV exports.
Prospeo eliminates that chain. It finds contacts and verifies them in the same step - 5-step verification with catch-all handling, spam-trap removal, and honeypot filtering baked in. Native integrations push directly to Salesforce, HubSpot, Lemlist, Instantly, and Clay. No CSV gymnastics, no annual contracts, and at ~$0.01/lead it's cheaper than Seamless.AI alone. Data refreshes every 7 days (the industry average is 6 weeks), so you're working with records that haven't gone stale between export and send. One of our customers, Stack Optimize, built from $0 to $1M ARR while keeping client deliverability above 94% and bounces under 3% - that's the kind of result you get when finding and verification aren't separate steps.
Seamless.AI users report 20-30% bounce rates. LogValid can clean those lists, but now you're paying twice and managing CSV handoffs. Prospeo delivers 98% verified emails from 300M+ profiles - finding and verification happen in the same click. Stack Optimize kept bounces under 3% while scaling to $1M ARR.
Kill the two-tool workflow. Get verified contacts in one step.
FAQ
Can LogValid replace Seamless.AI?
No. LogValid only verifies emails you already have - it can't discover new contacts. Seamless.AI finds contacts from its 1.7B+ database. They solve completely different problems. If you need both capabilities without managing two tools, Prospeo combines contact discovery and verification in a single platform at ~$0.01/lead.
Is Seamless.AI's data really 98% accurate?
Despite the 98% marketing claim, users on G2 and Reddit consistently report 20-30% bounce rates. Industry best practice is under 2%. Always run Seamless.AI exports through a dedicated verification step before sending outbound campaigns.
Is there a single tool that finds and verifies contacts?
Yes. Prospeo combines contact discovery with built-in 5-step email verification at 98% accuracy. It costs ~$0.01/lead with no annual contracts and refreshes data every 7 days, so you skip the two-tool workflow entirely.