Table 1

App attributes for 2019 (2018).

Anxiety n=20
2019 (2018)
Schizophrenia n=20
2019 (2018)
Depression n=20
2019 (2018)
Diabetes n=20
2019 (2018)
Addiction n=20
2019 (2018)
Hypertension n=20
2019 (2018)
Average
n=120
2019 (2018)
User star ratings4.63 (4.29)*2.83 (3.56)4.46 (4.41)4.48 (4.13)4.70 (4.22)3.92 (3.49)4.17 (4.02)
Presence of a privacy policy95% (85%)70% (50%)100% (85%)100% (85%)90% (70%)70% (45%)87.5% (70%)†
Ability to delete data70% (70%)20% (20%)55% (70%)45% (60%)35% (45%)20% (25%)40.8% (48.3%)*
Costs associated with the app95% (70%)25% (45%)25% (45%)70% (55%)70% (80%)50% (60%)55.8% (59.2%)
Days since last update20 (55)514 (392)155 (138)86 (35)173 (157)321 (652)*211.5 (238.2)
Medical claims by app60% (15%)†40% (30%)70% (45%)60% (45%)0% (5%)70% (45%)50% (30.8%)*
Specific evidence to support medical claims25% (5%)10% (10%)10% (0%)20% (5%)0% (0%)0% (0%)10.8% (3.3%)
  • *p<0.05

  • †p<0.01

  • in, data that is often collect by or into the app; out, outputs and results shared outward by the app.