boomerang carnets vs ZeroBounce: most-reported complaints compared
Most-reported issues at boomerang carnets and ZeroBounce, according to reviewers on Trustpilot — classified by our automated reader and backed by verbatim quotes from distinct reviews. This is a side-by-side of what reviewers report, not a score, rating or recommendation for either company.
boomerang carnets
TrustScore 4.9 · 1,416 reviews on Trustpilot.
211 reviews analysed, 2018-09-03 to 2026-09-23.
Complaint rate (recent window): 2%
0% of negative reviews get a company reply.
“you failed to register us appropriately causing issues in foreign countries”
ZeroBounce
TrustScore 4.8 · 2,127 reviews on Trustpilot.
279 reviews analysed, 2017-09-22 to 2026-07-19.
Complaint rate (recent window): 3%
100% of negative reviews get a company reply.
“Got 3 mails and 3 calls in less than a week from Zerobouce, that's a little too much.”
Reported on both
Issues with an evidenced category (at least two verbatim quotes) on both sides.
| Issue | boomerang carnets | ZeroBounce |
|---|---|---|
| Other | 38% | 32% |
| Support unhelpful | 38% | 21% |
Method: reviews are classified into a fixed complaint taxonomy by an automated reader; every category shown is backed by at least two verbatim quotes from distinct reviews. Figures are census classifications, not official statistics, and reflect what reviewers reported — not findings of wrongdoing by either company. Not affiliated with, endorsed by, or sponsored by Trustpilot A/S, boomerang carnets or ZeroBounce.