Table 4.
Group mean readability scores and content ratings
| A_ME | A_HF | G_ME | G_HF | |
| Age groups | 4+ | 4+ | Everyone | Everyone |
| Q2/15 | 14.07 (6.14)* | 11.62 (6.52) | 14.05 (6.86) | 11.9 (6.4) |
| Q4/15 | 14.14 (6.32) | 11.55 (6.4) | 14.57 (6.74) | 11.79 (5.49) |
| Q2/16 | 14.05 (6.36) | 11.48 (6.18) | 14.33 (6.68) | 12.07 (7.78) |
| Q4/16 | 14.02 (6.34) | 11.33 (5.94) | 14.31 (7.11) | 12.04 (7.02) |
*
Medical apps on the Apple App Store with '4+' content rating in the second quarter of 2015 had a mean readability score (ARS) of 14.06 with a standard deviation of 6.14.