Mobile Health Apps for Medical Emergencies: Systematic Review.
Alejandro Plaza RonceroGoncalo MarquesBeatriz Sainz-De-AbajoFrancisco Martin-RodríguezCarlos Del Pozo VegasBegonya Garcia ZapirainIsabel de la Torre DíezPublished in: JMIR mHealth and uHealth (2020)
We found that all apps in the Google Play Store were free, and 73 apps in the Apple App Store were paid, with the price ranging from US $0.89 to US $5.99. Moreover, 39% (11/28) of the included studies were related to warning systems for emergency services and 21% (6/28) were associated with disaster management apps.