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Table 4 Studies of percent of apps searched 2016–2018 that provide a privacy policy

From: Smartphones in mental health: a critical review of background issues, current status and future concerns

App search Source Dates of search Country of search Number of apps Percent with privacy policy (%) Study
Depression Google Play, Apple iTunes store Oct, 2017 US 116 49% O’Loughlin et al. (2019)
Depression Google Play, Apple App store Oct–Nov, 2018 UK 353 74% Bowie-DaBreo et al. 2019
Depression and smoking cessation “official Android and iOS marketplaces” Jan, 2018 US and Australia 36 69% Huckvale et al. (2019)
“mood” and “track” Google Play, Apple App store Jun–Aug, 2016; and Jan–Feb 2017a Canada 319 IOS;
69 Android
18% for IOS; 4% Androidb Robillard et al. (2019)
Dementia Apple iTunes
Apr–May, 2016 US 72 46% Rosenfeld et al. (2017)
Specific diseases including mental illnesses Google Play, Apple iTunes store July 2018 US 40 each for anxiety, schizophrenia, depression, addiction 85%-anxiety; 50%-schizophrenia; 85%-depression;
Wisniewski et al. (2019)
Migraine Google Play, Apple App store, July–Aug, 2017 US 29 76% Minen et al. (2018)
Mental Health Google Play May–Jun, 2017 India 82c 35% Powell et al. (2018)
Increase physical activity Google Play, Apple iTunes store Oct, 2016 UK 65 70% Bondaronek et al. (2018)
  1. Apps in English
  2. aPersonnel communication
  3. bTerms of agreement present for 15% of Apple and 3% of Android
  4. cApps in English of Indian origin