App review research
- What people complain about in 1-star app reviews
29,785 one-star reviews · 273 listings · US, UK, Canada, Australia, India, Ireland · 24 Oct 2026Across 76,521 App Store and Google Play reviews of 274 big-brand apps (25 Oct 2025 to 24 Oct 2026), 41.3% were one-star. In the 29,785 English-language one-star reviews, the most common complaints were login & account access (9.5%), customer service (9.1%) and charges, fees & refunds (8.4%). Parcels & post apps had the highest one-star share (62.3%), then telecom, TV & internet (56.9%). The App Store share was 44.0%, Google Play 29.4%.
- What Europeans complain about in 1-star app reviews
27,780 one-star reviews · 164 listings · Spain, Germany, France, Italy, Poland · 25 Oct 2026 · DeutschAcross 75,833 reviews of 164 apps from 82 brands in five countries, 36.6% were one-star: Spain 45.2%, Poland 30.6%. Login and account access was the top complaint in all five countries (13.6% of 27,780 one-star reviews). Telecom apps had the highest one-star share (44.3%), banks and payments the lowest (30.8%). Reviews were read in Spanish, German, French, Italian and Polish.
- What Shopify merchants complain about in 1- and 2-star app reviews
2,418 low-star reviews · 192 apps · 12 Shopify App Store categories · 25 Oct 2026In 2,418 one- and two-star reviews with text, from 192 apps in 12 categories, the top complaints were slow or no support (31.2%), bugs (17.9%) and charges & refunds (13.9%). Developers replied publicly to 43.9% of them, with a median wait of 2 days. Low-star reviews are 2.9% of all 392,701 reviews of these apps.
Method: public reviews from the App Store, Google Play and the Shopify App Store. Complaint themes are matched with keyword patterns listed on each study page, without AI. Hand checks of matched reviews: 55 of 60, 68 of 80 and 53 of 64 on topic.
Journalists and bloggers: each study has a press summary and embeddable charts with attribution (European study, Shopify study).
Data for every study is free to reuse under CC BY 4.0.