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Kaspr

Kaspr: B2B Phone Number and Email Finder

Get access to your prospects' phone numbers and emails, instantly for free

★★★★★4.7 (1,202) · 100k+ users
Free
Website ↗ Chrome Web Store ↗
what mrrlens sees
MRR · No price listedNo price in the listing
Opportunity—
Buyer threads · 30 d0
“B2B emails aren't that reliable, sometimes it can't even generate a valid email, whereas for the same LinkedIn profile, Apollo, Wiza, and ContactOut can give you one.”
#1 complaint · Bugs/Reliability · 80% of complaints read · analysed Oct 29, 2026 · source

01Revenue

No price in the listing

Store data from the Chrome Web Store listing, refreshed daily. Updated 9 h ago.

02Why users leave Kaspr

Bugs/Reliability4 reviews · 80%

Users report invalid or missing B2B emails; 3/10 bounce or risky; same LinkedIn profiles yield emails on Apollo, Wiza, ContactOut.

“B2B emails aren't that reliable, sometimes it can't even generate a valid email, whereas for the same LinkedIn profile, Apollo, Wiza, and ContactOut can give you one.” source ↗
1 more complaint, with verbatim quotesIncluded in the day pass and Pro.
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Sample: 5 recent complaints (1–3★ reviews) · clustered Oct 29, 2026 · complaints from Aug 2025–Aug 2026, almost all in the last 24 months · each review labelled by a model, quotes verbatim

03How to build a better Kaspr

Build difficultyMediumEmail data accuracy and verification depend on third-party sources/APIs; support is operationally simple but data quality is hard.
Three build ideas that answer these complaintsIncluded in the day pass and Pro.
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04Who wants a better Kaspr

0 buyer threads in the last 30 days name Kaspr, and 2 more are in the same market.

05Questions about Kaspr

How much revenue does Kaspr make?

Kaspr's listing publishes no price and no paid plan, so MRRLens shows no revenue estimate. It may still charge on its own website; a founder can verify the real figure.

What do users complain about most in Kaspr?

Across 5 recent complaints, the most common is bugs/reliability (80%). Users report invalid or missing B2B emails; 3/10 bounce or risky; same LinkedIn profiles yield emails on Apollo, Wiza, ContactOut.

How many people use Kaspr?

Kaspr lists 100k+ users on the Chrome Web Store, rated 4.7 (1,202).

See the full x-ray of Kaspr

Full 1-star breakdown with verbatim quotes, the build blueprint and every live thread — on every product.