MediCapt is a mobile phone application developed by Physicians for Human Rights (PHR) to collect evidence of sexual violence in conflict areas. In 2013 it won an award for atrocity prevention. [1]  The technology was field tested by physicians in Democratic Republic of Congo, where there is military violence in remote areas, and where WIFI and electrical power connections can be unreliable. [2][3]

In 2017, members of an organized militia in the DRC were put on trial for kidnapping, sexually assaulting, and mutilating 46 children, some as young as 8 months old. Physicians for Human Rights provided technical support for obtaining forensic evidence for the trial. Parents of the children testified from behind a screen, covered from head to toe, and using voice modification technology. [4]  In December 2017, the court convicted 12 militia members, including a member of parliament. [5]

Note: Wikipedia has some medical apps hosted on Kiwix. [6]

[1] http://phr.pub30.convio.net/medicapt/
[2] https://www.huffingtonpost.com/ranit-mishori-md-mhs/sexual-violence-from-the-_b_8681850.html
[3] https://www.reuters.com/article/us-congo-rape-apps/medical-app-aims-to-tackle-rape-flag-war-crimes-in-conflict-torn-congo-idUSKBN1952GP
[4] http://physiciansforhumanrights.org/blog/parents-of-congolese-child.html
[5] https://www.washingtonpost.com/world/africa/congo-court-sentences-12-to-life-for-child-rapes-murder/2017/12/13/a29685e4-e02e-11e7-b2e9-8c636f076c76_story.html?utm_term=.c825abb1b63a
[6] https://meta.wikimedia.org/wiki/Kiwix_-_Wikipedia_Offline