The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
From Jiwei Xu:
MessageGo is an powerful contacts' group manager and a group text sender iOS App, compatible with iPhone, iPod touch and iPad (iPod touch and iPad only support send group mail).You can use MessageGo to:- Group your contacts- Use system data, sync with "Contacts" app's groups- View ungrouped contacts and contacts who has multi groups- Select recipient of group message, ex. Only send gorup message to phone number with "mobile" label- Select recipient of group, ex. Only send group message to a group "Colleagues" email with "work" label- Send group message to all contacts- Use message template to send group message when holidays- Group mail can set recipients as Bcc, Cc or ToNotice: Group SMS only supports iOS 4.0 and above.