Kaspr Reviews 2026: Data, GDPR Fine & Honest Verdict

Kaspr Reviews 2026: What 919 Ratings, a GDPR Fine, and Real Data Tell You

Kaspr holds a 4.4/5 on G2 across 833 reviews. On Trustpilot, it sits at 1.5/5 with 86 reviews with 86 reviews. That's 919 Kaspr reviews telling two completely different stories - and the reasons for the split tell you everything about whether this tool belongs in your stack.

30-Second Verdict

Kaspr works as a supplementary European phone number tool for individual SDRs. It doesn't work as a primary data source for teams, compliance-sensitive orgs, or anyone needing broad US coverage. The €240,000 CNIL fine is a dealbreaker in regulated industries.

If email accuracy matters more than European phone numbers, Prospeo is the better call - 98% email accuracy, 75 free emails/month, no contracts.

What Kaspr Does

Kaspr is a Chrome extension that pulls emails and phone numbers from professional profiles, group members, and event attendees. The tool is positioned as giving access to over 500 million phone numbers and emails globally, with over 120 million European contacts - its strongest region by far.

Cognism acquired Kaspr, positioning it as the self-serve SMB layer beneath Cognism's enterprise product. You get a set number of phone, email, and direct email credits per month depending on your plan. Simple enough on paper, but the credit math gets complicated fast once a team starts actually prospecting.

What Users Actually Think

The G2 picture looks great on the surface - 63% five-star reviews, 31% four-star. But here's the detail no other review roundup mentions: 699 of 833 G2 reviewers are European, and 569 are from small businesses. Kaspr lands best with Europe-based small teams, and that shows up in the ratings.

If you're comparing tools for outbound, it helps to benchmark Kaspr against other SDR tools and broader data enrichment services before you commit.

A March 2026 G2 review praised speed and accuracy but called paid plans "pricey for teams." That's a common theme. Limited credits drew 7 complaint mentions, expensive pricing drew 5.

Trustpilot tells a different story entirely: auto-renewal surprise charges (one user described an attempted €1,080 charge), refund refusals, GDPR anger from cold-call recipients, and a "glitchy extension" outside Europe. The discrepancy makes sense - G2 skews toward incentivized reviews from satisfied users, while Trustpilot self-selects for billing disputes. On Reddit, practitioners describe Kaspr as a gap-filler for missing direct phones, not a primary data source.

If you're building a repeatable outbound motion, these sales prospecting techniques matter more than any single database.

The GDPR Fine

In December 2024, France's data protection authority CNIL fined Kaspr €240,000 for multiple GDPR violations tied to how contact details were collected and handled. This isn't a footnote. It's the single biggest risk factor in any procurement conversation about Kaspr.

CNIL found Kaspr had no valid legal basis for collecting contact details from people who'd limited profile visibility to 1st/2nd-degree connections. Their database was built using professional networks and other websites, including domain registries. They stored data for five years from each update, and job changes could renew retention automatically - meaning someone's data could sit in Kaspr's system indefinitely as long as they kept changing roles. When Kaspr began notifying data subjects in 2022, four years after the extension launched, the notifications were English-only regardless of the recipient's country. CNIL gave Kaspr until 18 June 2025 to comply.

The cancellation policy is its own problem. Monthly plans require 48 hours' notice before renewal; annual plans require 30 days. The deadline is enforced to the exact hour on your invoice. Miss it by an afternoon and you're locked in for another cycle.

Here's the thing that bugs us most: Kaspr's own help center recommends hiding their Chrome extension and pacing profile visits to avoid platform flags. They also say their extension "does not scrape data" and instead adds information from their own database - but CNIL's decision describes unlawful collection from profiles with restricted visibility. We've watched teams try to navigate this tension for years. Those two positions don't coexist cleanly when legal asks questions.

If your org is debating whether enrichment crosses a line, it’s worth reading up on web scraping lead generation and the compliance tradeoffs.

Accuracy and Pricing

Kaspr markets "90% accuracy on European contacts," but there's no published methodology behind that number. Cognism, Kaspr's parent company, markets "diamond-verified" mobiles as a premium tier - which tells you Kaspr's standard verification sits a step below.

A Reddit benchmark of 100 French leads found Kaspr hit a 66% phone match rate at $0.43 per phone, ranking 6th of 7 tools tested. The tester disclosed they founded a competing tool, so take the exact ranking with a grain of salt, but the cost-per-contact math is directionally useful.

At scale, credits burn fast. We've seen teams exhaust Kaspr's monthly allotment in the first week. A Reddit sales team lead described pricing getting steep when burning hundreds of phone numbers monthly, with customer service that "takes forever to get proper responses."

If your main KPI is fewer bounces, you’ll get more leverage from tightening email deliverability and tracking your email bounce rate than from buying more phone credits.

Who Should (and Shouldn't) Use Kaspr

Use Kaspr if you're an individual SDR in Europe who needs supplementary phone numbers, you're on a small team comfortable managing credit limits manually, and you're not in a regulated industry where the CNIL fine creates procurement risk.

Skip it if you're a compliance-sensitive organization - the GDPR fine history is a red flag for any legal team doing vendor review. It's also the wrong tool if you need US or global data coverage at scale, if your team burns through credits monthly, or if you prioritize email accuracy over phone numbers. In our experience, the European phone data is genuinely useful, but that's where the value stops.

Let's be honest: most teams shopping for Kaspr don't actually need European phone numbers as their primary enrichment channel. They need verified emails that don't bounce. If you're running outbound, email accuracy will move the needle more than a handful of direct dials.

Better Alternatives

Prospeo is the pick when email accuracy is the priority. 98% verified emails across 300M+ professional profiles, 125M+ verified mobiles with a 30% pickup rate, and a 7-day data refresh cycle compared to the 4-6 week industry average. No contracts, a free tier with 75 emails/month, and pricing around $0.01 per email. The 5-step verification process includes catch-all handling, spam-trap removal, and honeypot filtering, so bounce rates stay under control. For teams burned by Kaspr's billing practices, the no-contract, cancel-anytime model is a relief. One customer, Meritt, tripled their pipeline from $100K to $300K/week after switching, with bounce rates dropping from 35% to under 4%.

If you’re evaluating options, start with a shortlist of outbound lead generation tools and compare against the best sales prospecting databases for your target region.

Apollo.io covers the US market well with a generous free tier and strong email-heavy workflows. Expect ~$49-99/mo per user on paid plans. Better for email volume than phone numbers.

Cognism is Kaspr's parent company and the enterprise-grade option - proper compliance infrastructure, diamond-verified mobiles, but custom pricing typically starting around $1,000+/mo. If you liked Kaspr's European data but need it with real compliance backing, Cognism is the logical step up.

Lusha offers a similar Chrome extension workflow with stronger US data and more transparent cancellation. Plans run ~$29-79/mo per user, making it a reasonable swap for the same UX without the compliance headaches.

FAQ

Is Kaspr GDPR compliant?

Kaspr positions itself as GDPR-aligned, but CNIL fined them €240,000 for collecting restricted-visibility data, excessive retention, and inadequate transparency. They had until 18 June 2025 to comply. Procurement teams in regulated industries should factor this into vendor risk assessments.

Is Kaspr safe for my account on professional networks?

Kaspr's own help center recommends hiding the extension and pacing visits to avoid flags. Rapid use risks throttling or temporary blocks. The extension works, but the platform it operates on doesn't endorse it.

How accurate is Kaspr's data?

G2 users praise accuracy for European contacts specifically. An independent Reddit benchmark found a 66% phone match rate on French leads at $0.43 per phone. Accuracy drops outside Europe, and the "90%" marketing claim has no published methodology behind it.

How do I cancel Kaspr?

Cancel via Plan & Billing at least 48 hours before monthly renewal or 30 days before annual renewal. The deadline is enforced to the exact hour on your invoice - not midnight, not end of business day. Missing it locks you into another billing cycle.

What's a good alternative for email finding?

Prospeo delivers 98% email accuracy across 300M+ profiles with a 7-day data refresh cycle. The free tier includes 75 emails/month with no contracts. Kaspr is stronger for European phone numbers, but if verified email is the priority, Prospeo wins on accuracy, freshness, and cost per lead.