Open Data Kit

The gold standard for offline-first mobile data collection in resource-constrained environments.

ODK (formerly Open Data Kit) enables field teams to capture complex data on Android or iOS devices without an internet connection. It replaces paper forms with powerful digital logic: skip patterns, GPS coordinates, photos, and barcode scans. Organizations like the World Health Organization and the Red Cross use ODK to track disease outbreaks and manage disaster relief across millions of submissions. The platform consists of ODK Collect for mobile input and ODK Central for secure server-side management, providing a robust pipeline from the field to a database.

https://getodk.org