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Table 2 Characteristics of included dose calculator apps

From: Smartphone apps for calculating insulin dose: a systematic assessment

  Number by platform (%)
  Android (n = 21) iOS (n = 25)
App type   
  Standalone calculator 6 (29%) 11 (44%)
  Diary with integrated calculator 14 (67%) 13 (52%)
  Other* 1 (5%) 1 (4%)
Region of origin   
  Europe 11 (52%) 12 (48%)
  North America 6 (29%) 8 (32%)
  Asia and Australasia 4 (19%) 5 (20%)
Cost   
  Free 9 (43%) 10 (40%)
  Paid for 12 (57%) 15 (60%)
Releases   
  Updated during study period 5 (24%) 12 (48%)
  Updated in 12 months prior 13 (62%) 16 (64%)
  Still available at close of study 20 (95%) 22 (88%)
Self-management features   
  Food database 3 (14%) 5 (20%)
  Data sharing 11 (52%) 8 (32%)
  Reminders 3 (14%) 3 (12%)
Other features   
  Clinical disclaimer 11 (52%) 16 (64%)
  Accreditation 1 (5%) 2 (7%)
  In-app help 12 (57%) 13 (52%)
  Support contact 10 (48%) 16 (64%)
  1. *One app available for both Android and iOS contained information about insulin pump therapy but included a dose calculator as an additional feature. Many pumps themselves contain dose calculators, potentially rendering a separate calculator redundant.