Measuring lai

Good morning,

This migh out of topic,

But I hope I can find an answer,

Does anybody here know where I can download the software-based android for measuring LAI?
I would like to compare the LAI retrieved by SNAP biop with measurement data

A search in the google play store reveals several apps:

Thank marco for the answer, but the apps available in google play seems not really accurate, some papers mention about PocketLAI, Viticanopy or LAIsmart. Does anyone know where we can get an app that scientifically approved have good performance in retrieving LAI?