Is SumUp legit?

A factual composite from public reviews, official regulator records, app stores and the company’s own policies. We report evidence, not verdicts of fraud or endorsement.

Based on 2,206 public Trustpilot reviews published 2025-09-16 to 2026-09-23 — see the Trustpilot page. Not affiliated with Trustpilot or SumUp .

SumUp is an established company with 57,762 Trustpilot reviews and a 4.2 TrustScore. In our census of recent reviews, 16% were classified as complaints, most often support unhelpful, support unreachable, account/app problems. Elsewhere it scores 3.5★ on Google Play. Of 694 company replies to negative reviews analysed, 35% engaged with the specific problem.

What goes wrong most, according to reviewers

Support unhelpful — 244 reports (32% of complaints)
Support unreachable — 203 reports (27% of complaints)
Account/app problems — 186 reports (25% of complaints)

Full evidence, quotes and trends: the SumUp complaint report.