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Table 2 Breakdown of app functions

From: The evolution of mobile apps for asthma: an updated systematic assessment of content and tools

  By date By platform
  2011 (n = 78) New 2013 (n = 92) ¤ All 2013 (n = 147) ¤ All 2013 (n = 191)
Function n % n % n % Android iOS
Information 37 47% 60 65% 83 56% 66 44
General information 36 46% 51 55% 74 50% 56 39
Acute asthma management (First aid) 12 15% 18 20% 23 16% 19 14
Inhaler technique guidance 2 3% 10 11% 12 8% 6 13
Other therapeutic instructions 13 17% 10 11% 16 11% 15 9
Self-management tools 36 46% 38 41% 70 48% 42 49
Diaries and trackers 21 27% 18 20% 36 24% 23 26
Pollen status 3 4% 8 9% 12 8% 6 10
Pollution status 3 4% 6 7% 9 6% 2 9
Allergen database 4 5% 3 3% 7 5% 5 4
Forum 0 0% 1 1% 1 1% 1 0
Online pharmacy 0 0% 1 1% 1 1% 1 0
Combined with information 1 1% 8 9% 9 6% 6 7
Assessment tools 9 12% 8 9% 16 11% 10 11
Physiological measurement 2 3% 1 1% 3 2% 0 4
Assessment questionnaires 4 5% 7 8% 11 7% 7 9
Standalone calculators 2 3% 2 2% 4 3% 3 1
Therapeutic tools 2 3% 5 5% 6 4% 1 5
  1. The table compares the types of functions present in apps for asthma available in 2011 and 2013, and provides a breakdown by platform for 2013; 25 apps included in the 2011 assessment were withdrawn and this accounts for the lower overall total in 2013. Some apps contained multiple functions and are counted more than once.
  2. Apps available on both Android and iOS are counted only once.
  3. ¤ New 2013, Apps available in 2013 that were not available in 2011; All 2013, All apps available in 2013, excluding those available in 2011 that were subsequently discontinued.