The researchers identified 38 apps as headache diaries – 24 on iOS only, 11 on Android only, and 3 on both platforms; 50% of the apps were free; all of the apps allowed only tracking of headache episodes and did not gather data on days when no headaches occurred; only 2 apps included the ability to set reminders.
None of the apps met all 7 app criteria. Only 7 of the 38 apps met 4 or more criteria. The apps with the highest quality were iHeadache, ecoHeadache, and Headache Diary Pro – all three met 5 of the 7 app criteria. Only 7 apps were created with clinical and/or scientific headache expertise.
The researchers recognized the limitations of the review (non-validated criteria, etc) but conclude that an increased emphasis needs to be placed on the quality of headache diary apps. The demand for a high-quality, evidence-based headache diary app continues to persist.