SREY policy concerning your personal data and the grants requested for the provioded applications:

SREY fully respect your privacy and is not using your data in ANY CASE, only for save purpose on your applications.
Your data aquired by the application are stored on your cell phone/tab ONLY and are NOT uploaded or shared to SREY or any other counterparty.

This is the case for all applications provided by SREY.net:

GLYCEMIA
SYSTEM SOLAR
PV SOLAR CALCULATOR
COVERFLOW

For this last application, COVERFLOW, a special grant (GOOGLE ACCOUNT) is required if you want to watch your pictures from picasaweb/google photos, but you can denide it, in this case this functionality will not work.

The other grant, READ/WRITE ON INTERNAL DISK, is to write/store the application data on your cell phone ONLY.