Super Flexible File Synchronizer

Download version 4.89
for Windows: SuperFlexibleSetup.exe (English)
                   SuperFlexibleSetupFR.exe (French)
                   SuperFlexibleSetupDE.exe (German)
                   SuperFlexibleSetupES.exe (Spanish - now includes Spanish help)
 

Download version 4.89
for Macintosh: SuperFlexibleMac.dmg (Universal Binary)
 
Read more about the Macintosh release here.  
ExtremeSync Remote Service App for Mac: RemoteServMac.zip (Intel only)
 

Preview version 5.00 (build 20)
for Windows: SuperFlexibleSetup5.exe   read about version 5
 

Old version 3.77
for Windows: SuperFlexibleSetup3.exe