. 2019 Jan 23;21(1):e9818. doi: 10.2196/jmir.9818

Table 5.

A summarized table of positive results regarding backends of Android and iOS apps. One observation of a positive characteristic makes the functional or other category count for the app.

Positive findings	Android (functional), n=30	iOS (functional), n=30	Android (others), n=30	iOS (others), n=30	Total (functional), n=60, n (%)	Total (others), n=60, n (%)
TLS^a 1.3 support observed	4	5	21	17	9 (15)	38 (63)
HSTS^b support observed	12	15	28	25	27 (45)	53 (88)

^aTLS: Transport Layer Security.

^bHSTS: Hypertext Transfer Protocol Strict Transport Security.