Open Data Kit (ODK) is open-source software for collecting, managing and using data in resource-constrained environments. The goal of ODK is to offer open-source and standards-based tools which are easy to try, easy to use, easy to modify and easy to scale (ODK website).
Open Data Kit allows multiple types of data – from text to pictures to location – to be entered and collected in line with the researchers need.
To make these tools widely accessible and functional, ODK is supported in multiple languages and further works offline. They allow teams to use ready-to-use mobile, desktop or server devices or customise them to suit their needs.