i-FunBox - General file management software for iPhone and other Apple products

AkrutoSync - Sync your Outlook contacts, calendar, tasks and notes on your PC direct with your phone via Wi-Fi or a cellular network.‎Buy · ‎FAQ · ‎Contact Us · ‎SupportPeople also askWhat is Akrutosync?

iMazing - iMazing lets you transfer music, files, messages, apps and more from any iPhone, iPad, or iPod to a computer, Mac or PC. Manage and backup your iOS device simply without iTunes. (was DiskAid)

OutlookDAV - Synchronize between Outlook and CalDAV/CardDAVserver.

iExplorer - iExplorer lets you easily transfer music, playlists, text messages, files and more from any iPhone, iPod, or iPad to a Mac or Windows computer and iTunes.

Outlook Google Calendar Sync - Offers calendar synchronisation between Outlook and Google, including attendees and reminders.