About the Authors

Günther Fink

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Project administration, Visualization, Writing – original draft, Writing – review & editing

guenther.fink@swisstph.ch

Affiliations University of Basel, Basel, Switzerland, Swiss Tropical and Public Health Institute, Allschwil, Switzerland,

Branwen Nia Owen

Roles Visualization, Writing – original draft, Writing – review & editing

Affiliations University of Basel, Basel, Switzerland, Swiss Tropical and Public Health Institute, Allschwil, Switzerland,

Jan Will

Roles Project administration, Supervision, Writing – original draft

Affiliation Innovations for Poverty Action, Kampala, Uganda,

Ilyena Kozain

Roles Project administration, Visualization, Writing – original draft, Writing – review & editing

Affiliation Viamo, Kampala, Uganda

Competing Interests

The first, second and third author declare no competing interest. The last author (IK) is currently employed by Viamo, the company operating the service analyzed. She was not involved in the data analysis and did not modify the way the results are presented or described in any way.