The Chameleon Card Android App is for use with the Chameleon Card reader that is produced by VIA Ltd. This App allows the user of the Chameleon card to register their soil moisture sensors with geolocation and store information about the crop. They can then store the result (Blue Green Red) from a Chameleon Card reading on a particular sensor. At the time of reading the previous reading with the date is displayed. The data from the readings is stored and the farmer can see their data in graphs using the associated webpage. Farmers that use the Chameleon Card App to record their readings will also get benefits such as free replacement cards and sensors free gifts improved warranty inclusion in discussion groups and free advice and troubleshooting.