Arena is a cloud-based platform for storing and processing data collected in field inventories or questionnaires. The application areas are many, such as biophysical, socio-economic or biodiversity surveys. Arena provides a fast and flexible way to set up a survey and start entering data for a team. It offers tools for offline data collection with Arena Mobile app, data quality assurance with the help of in-built data validation and reporting methods. Arena also offers multilingual data entry forms, multi-cycle data management, and computing of new result attributes and running statistical analysis with integrated connection to RStudio Server or local installation of RStudio. 

Arena contains a map view with access to very-high resolution satellite images. This can be used, for example, for verifying locations of collected data, and for conducting sample-based image interpretation.

Arena is open source.
Its source code is available on GitHub