What 1-star app reviews complain aboutWhat 1-star app reviews complain aboutShare of 29,785 one-star reviews mentioning each theme · 6 countries · 25 Oct 2025 – 24 Oct 2026Login & account access9.5%Customer service9.1%Charges, fees & refunds8.4%Slow, loading & lag4.9%Crashes & won’t open4.6%Ads3.6%Broke after an update3.3%Redesign & confusing UI3.2%Notifications & alerts2.0%Payment or checkout fails1.0%Source: Revunda study of 29,785 one-star app reviews (2026) · CC BY 4.0revunda.xyz/apps/research/app-review-complaints-2026/revunda.xyzRevunda study of 29,785 one-star app reviews (2026)