Table 3

Data sharing practices of apps

No of installs* and appsNo of different types of user data shared†No of unique transmissions (type/entity)‡No of unique recipients§No (%) of infrastructure recipientsNo (%) of analysis recipients
500-1000:
 Dental Prescriber0000 (0)0 (0)
 Medsmart Meds & Pill Reminder App142541 (25)3 (75)
 myPharmacyLink5522 (100)0 (0)
1000-5000:
 DrugDoses0000 (0)0 (0)
 MediTracker4631 (33)2 (67)
 MyMeds5831 (33)2 (67)
5000-10 000:
 CredibleMeds1221 (50)1 (50)
 Med Helper Pro Pill Reminder0010 (0)1 (100)
 Nurse’s Pocket Drug Guide 20150030 (0)3 (100)
 Pedi Safe Medications0000 (0)0 (0)
10 000-50 000:
 MIMS For Android3621 (50)1 (50)
50 000-100 000:
 ListMeds-Free0000 (0)0 (0)
 MedicineWise5951 (20)4 (80)
100 000-500 000:
 Dosecast-Medication Reminder91631 (33)2 (67)
 Lexicomp3631 (33)2 (67)
 MedAdvisor82032 (67)1 (33)
 My PillBox(Meds&Pill Reminder)0000 (0)0 (0)
 Nurse’s Drug Handbook4952 (40)3 (60)
 Pill Identifier and Drug list51041 (25)3 (75)
500 000-1 000 000:
 UpToDate for Android51130 (0)3 (100)
1 000 000-5 000 000:
 Ada-Your Health Companion1527135 (39)8 (62)
 Drugs.com5521 (50)1 (50)
 Epocrates Plus81431 (33)2 (67)
5 000 000-10 000 000:
 Medscape72183 (38)5 (63)
  • * As reported in Google Play store at time of sampling (November 2017).

  • As detected in traffic analysis of 28 possible types.

  • As detected in traffic analysis and defined as sharing of unique type of data with an external entity—for example, app shares Device Name and OS Version with Crashlytics, resulting in two unique transmissions.

  • § Identified in traffic and privacy policy analysis.