I've been trying iNaturalist and a few other mobile phone apps (Map of Life, eBird, PlantNet, Urubu, SISS-Geo) for over a year and found that many users start but do not continue using them. Moreover, due to the existence of several apps, none of them has a complete list of species and none has all desired functions and features.Citizen perspective:In your experience, do you believe common citizens find the apps user friendly and are able to use them effectively to learn and add data to science?Science perspective:Are scientists, mainly taxonomists, engaging in this initiative to help people learn about nature? If not, why? Is the data generated by citizens, useful for science (biogeography, conservation)?