Table 1.

App characteristics

Characteristic	No (%)
Category*:
Consumer medicines information	13 (54)
Clinician drug reference	12 (50)
Drug record	12 (50)
Drug adherence and reminders	8 (33)
Health information/symptom checker	5 (21)
Message health professional	5 (21)
Dose calculator	4 (17)
Pill identifier	4 (17)
Ordering prescription refills	3 (13)
Drug coverage/pricing	3 (13)
No of downloads†:
500-1000	3 (13)
1000-5000	3 (13)
5000-10 000	4 (17)
10 000-50 000	1 (4)
50 000-100 000	2 (8)
100 000-500 000	6 (25)
500 000-1 000 000	1 (4)
1 000 000-5 000 000	3 (13)
5 000 000-10 000 000	1 (4)
Cost incurred to download:
No	20 (83)
Yes	4 (17)
Contains advertising:
No	18 (75)
Yes	6 (25)
Offers in-app purchases:
No	18 (75)
Yes	6 (25)
Has a privacy policy:
No	2 (8)
Yes	22 (92)
Type of developer:
Privately held company	15 (63)
Publicly traded company or subsidiary	4 (17)
Individual	3 (13)
Not-for-profit organisation	2 (8)
Location:
North America	14 (58)
Australia/New Zealand	7 (29)
Europe	2 (8)
China	1 (4)
Clinician involvement:	10 (38)
Founder	8 (33)
Peer reviewer	4 (17)

^*Apps often had multiple functionalities therefore percentages do not add to 100%.

^†As reported in Google Play store at time of sampling (November 2017).