Hello,I think you are talking about AEM Assets (not AEM Mobile) and
might want to post your query here Adobe Experience Manager Assets.AEM
Mobile is a totally different product used to build content-rich hybrid
apps and stands separate from AEM.Regarding Smart Crop, its a Dynamic
Media feature and is available with dynamicmedia or dynamicmedia_scene7
runmodes, however this also requires the Dynamic Media to be configured
in Cloud Services. For more details will recommend to post your query
above...