What Europeans complain about in 1-star app reviewsWhat Europeans complain about in 1-star app reviewsShare of 27,780 one-star reviews mentioning each theme · Spain, Germany, France, Italy and Poland · 26 Oct 2025 – 25 Oct 2026Login & account access13.6%Customer service8.8%Charges, fees & refunds6.7%Broke after an update5.9%Crashes & won’t open5.6%Ads & promotions3.8%Redesign & confusing UI3.3%Slow & loading2.9%Source: Revunda study of 27,780 one-star app reviews in 5 European countries (2026) · CC BY 4.0revunda.xyz/apps/research/european-app-review-complaints-2026/revunda.xyzRevunda study of 27,780 one-star app reviews in 5 European countries (2026)