Up1 looks nice, but is internally using SJCL which is slow and does not support ...

robfreudenreich on Aug 1, 2017 | parent | context | favorite | on: Mozilla launches voice search, file-sharing and no...

Up1 looks nice, but is internally using SJCL which is slow and does not support bigger files ("This is not a problem with sub-10MB images"). Send - and Whisply - are built on the new WebCrypto APIs which are faster and allow bigger files, up to 1 GB in both cases.