Clodura.AI vs Kaspr: Which B2B Data Tool Is Worth Your Budget?
Choosing between Clodura.AI and Kaspr comes down to how you work and what you're actually paying per usable lead. One's a Chrome extension built for pulling European contact data - especially phone numbers - fast. The other is trying to be your entire outreach stack: prospecting, sequences, calling, warmup, all drawing from one credit pool.
That distinction sounds simple, but it gets messy once you start doing the math.
30-Second Verdict
Pick Kaspr if you're a solo SDR or small team prospecting European contacts through a browser extension. The phone data is strong for EU/UK. It holds a 4.4/5 on G2 across 833 reviews.
Pick Clodura.AI if you want prospecting, sequences, warmup, and calling in one platform and you're willing to learn the credit system. It holds a 4.5/5 on G2 across 301 reviews.
Skip both if your core problem is bounced emails and stale data. Prospeo delivers 98% email accuracy on a 7-day refresh cycle, starting free - no credit anxiety, no bundled features you won't touch.
At-a-Glance Comparison
| Kaspr | Clodura.AI | Winner | |
|---|---|---|---|
| Best for | Solo SDRs, EU phones | All-in-one outreach | Kaspr (for focus) |
| Database | 120M+ contacts | 600M+ claimed | Clodura (on volume) |
| Pricing | EUR 99/mo per user (Business) | $100/mo (5K credits) | Clodura (on paper) |
| Free tier | 15 B2B + 5 phone + 5 direct email/mo | 100 one-time credits | Kaspr |
| G2 rating | 4.4/5 (833 reviews) | 4.5/5 (301 reviews) | Clodura (narrowly) |
| Key strength | Chrome extension speed | Platform breadth | Depends on workflow |
Pricing Breakdown
What Kaspr Actually Costs
Kaspr's pricing page is refreshingly transparent. Starter runs EUR 59/mo (EUR 45/mo annual) with unlimited B2B emails, 100 phone credits, 5 direct email credits, and 1,000 export credits per month. Business bumps to EUR 99/mo (EUR 79/mo annual) with 200 phone credits, 200 direct email credits, and 2,500 export credits per month. Those export limits matter - high-volume teams hit the ceiling before they run out of phone credits.
Add-on phone credits get expensive fast: 250 extra costs EUR 88, a thousand costs EUR 280, and 10,000 runs EUR 2,000/mo.
The free plan gives you 15 B2B email credits, 5 phone credits, and 5 direct email credits per month. The "unlimited B2B emails" perk requires inviting three colleagues, and you need at least 20 connections on your professional profile to use Kaspr at all.
If you want a deeper breakdown of how those credits work in practice, see our Kaspr Pricing guide.
What Clodura.AI Actually Costs
Clodura runs on a unified credit system. Entry: 5,000 credits at $100/mo ($90/mo annual). Then 10,000 for $194/mo, 50,000 for $806/mo. One-time purchases are available at a premium - 5,000 credits costs $200 without a subscription.
Here's the thing: every feature eats from the same pool. Unlocking an email costs 1 credit. A phone number costs 10. Warming up a mailbox burns 200 credits. Outbound calling runs 3 credits per minute for US/Canada, and a spam check costs 10 credits. In our testing, teams using warmup and calling burned through credits roughly 2x faster than email-only users. Two warmed-up mailboxes plus moderate calling can eat half your monthly allotment before you prospect a single lead.
If you're evaluating warmup specifically, compare approaches in our How to Warm Up an Email guide.
Credits roll over for up to two extra months, and your wallet can accumulate up to 3x your monthly allotment.
Cost-Per-Lead Math
On Kaspr Business at EUR 99/mo, you're getting roughly 200 fully-revealed leads with phone and direct email. That's about EUR 0.50 per lead.
Clodura's 5,000-credit plan looks cheaper on paper. If you're only pulling email plus phone (11 credits per lead), you'd get around 454 leads for $100/mo - roughly $0.22 per lead. But the moment you add warmup, calling, or spam checks, that number drops fast. We've seen teams burn through their entire monthly allotment in under two weeks once they activate the calling module alongside warmup for even two mailboxes.
If you’re benchmarking against other providers, our roundup of B2B leads database providers can help.
Kaspr's credits deplete fast. Clodura's credits get eaten by warmup and calling. Prospeo charges ~$0.01 per verified email with 98% accuracy and a 7-day refresh cycle - no shared credit pool, no surprise burns.
Stop doing credit math and start closing deals.
What Real Users Say
| Kaspr | Clodura.AI | |
|---|---|---|
| Users love | Chrome extension speed; phone data accuracy, especially EU/UK | Database breadth; lead generation speed; all-in-one pitch |
| Users dislike | Credits deplete quickly; pricing feels steep for high-volume teams | Real learning curve; data accuracy complaints - bounced emails, stale records that waste credits you can't recover |
Reddit's r/sales threads rarely compare these two head-to-head, which tells you something about their market overlap. Most teams evaluating Kaspr compare it to Cognism or Lusha, not Clodura. They occupy different mental categories for most buyers.
Data Quality and Coverage
Kaspr's database covers 120M+ contacts, checked and verified against 120 sources, with a clear EU/UK focus. Phantombuster's independent roundup calls it the "best for phone number extraction" and confirms its GDPR-compliant sourcing. For European prospecting, the phone data is genuinely strong.
If your workflow is browser-first, you’ll also want to compare other sales extensions before you commit.
Clodura claims 600M+ contacts with 50+ waterfall email providers and 20+ phone providers. The breadth is impressive on paper, but G2 reviewers consistently flag bounce rates and outdated information. One Capterra reviewer praised the org charts covering 18M+ companies while calling the database "trash." We've seen this pattern with waterfall providers before - more sources doesn't always mean better data. Clodura's own Kaspr competitor page claims Kaspr updates its data every 60 days, which helps explain why teams run into freshness issues compared to platforms refreshing weekly.
Look, if your deal sizes sit below $15k, you probably don't need either tool's full feature set. A dedicated data provider with high accuracy will outperform an all-in-one platform with mediocre data every time. The cost of a bounced email isn't the credit - it's the domain reputation damage and the lost reply.
If bounces are already hurting you, start with the fundamentals in our Soft Bounce Rate guide.
When Neither Fits
If your comparison keeps circling back to data accuracy, that's a sign you need a different kind of tool entirely. Prospeo refreshes every 7 days and verifies at 98% accuracy using proprietary infrastructure, not third-party email providers. The database covers 300M+ professional profiles with 143M+ verified emails and 125M+ verified mobiles, and the Chrome extension works across any website or CRM. Pricing starts free - 75 verified emails and 100 extension credits per month - with no contracts. At roughly $0.01 per email, it's a different order of magnitude from either Kaspr or Clodura.
If you’re shopping specifically for accurate emails, see our picks for the best email contact finders.
For context, GreyScout switched from a waterfall provider and saw bounce rates drop from 38% to under 4%, with pipeline up 140%.
Bounce rates from waterfall providers wreck your domain reputation - and no credit rollover fixes that. Prospeo's proprietary verification infrastructure delivers 98% email accuracy across 300M+ profiles, refreshed every 7 days. GreyScout cut bounces from 38% to under 4%.
Find out what clean data does to your pipeline.
Clodura.AI vs Kaspr: The Verdict
Let's be honest - the credit math matters more than the feature list here.
Go with Kaspr if you're a solo SDR or small team focused on European contacts and you want a browser-first workflow that gets phone numbers fast. Budget for add-on credits, because you'll need them.
Go with Clodura.AI if you want prospecting, sequences, warmup, and calling consolidated into one platform. Watch your credit burn rate closely - the all-in-one convenience evaporates when infrastructure costs eat your prospecting budget.
Skip both if accuracy is the priority. A 7-day refresh cycle and 98% verified emails will do more for your pipeline than any feature bundle with questionable data underneath it.
If you’re building a broader outbound motion, our SDR cadence best practices guide pairs well with whichever data source you choose.
FAQ
Can I use Kaspr without a professional networking profile?
No. Kaspr requires at least 20 connections on your professional profile and works primarily as a browser extension overlay. Without an active profile, the tool doesn't function - a dealbreaker for teams that prospect outside social networks.
Does Clodura.AI include outreach and calling tools?
Yes. Clodura bundles email sequences, email warmup (200 credits per mailbox), spam checking (10 credits), and outbound calling (3 credits/min US/Canada). All features share one credit pool, so total cost depends heavily on which modules you activate.
What's a good alternative if I only need accurate contact data?
Prospeo is purpose-built for that use case - 98% verified emails, 125M+ verified mobiles, and a 7-day data refresh cycle. The free tier includes 75 emails and 100 extension credits monthly. No outreach suite, no calling module, just clean contact data you can push to whatever sequencer you already use.