PhenoTop provides a new method for collecting plant phenotypes in the field using tablets and smartphones. The application is used by plant breeders, agronomists, and scientists to record plants' observations in the field (open-field, greenhouse, nursery, etc). PhenoTop boosts efficiency and productivity of collecting and characterizing plant data in the field. It replaces the traditional method of pen and paper, saving much time, reducing typing errors, connecting images to trait data, and allow browsing previous information for better decisions making. This app is not meant to be used as a stand-alone, but rather connected to the Phenome-One database. Synchronizing the data to the server is done quickly and automatically.