The file system directory that contains documents that are common to all users. This special folder is valid for Windows NT systems, Windows 95, and Windows 98 systems with Shfolder.dll installed. Added in the.NET Framework 4. The file system directory that serves as a repository for music files common to all users. If you select the API Compatibility Level as 'Net 2.0' (not the Subset option), the path in a Mac is correctly identified as the user folder and not the Documents folder. Bakno, Sep 7, 2011 #10. Alternatively, you can just copy the sago folder into your program and manually link everything. If you use the last option and are using a library version from before 4.0.0: Remember to link to the CoreServices lib when compiling on Mac. This typically means passing '-framework CoreServices' during the linking phase.

Actually I've just rechecked your question, using SQLite implementation, as well as PCLStorage.
For PCLStorage, there is specific FileSystem.Current.LocalStorage.Path field, which returns for me 'given deploy app internal path'.
Actually, when I've looked through debbuger, it seems to be the same folder location, as from SQLite implementation code (my first answer).

I didn't go deeply in this case, but it seems, that between re-deploys (re-installations), iOS somehow automatically copies content from this folder, for new installation cache folder.

Ok, I'll stop talking, just look - I've used those paths (based on SQLite/PCLStorage codes), so initially I've got:
/Users/<mac_user_username>/Library/Developer/CoreSimulator/Devices/A37D78CD-EF11-4E33-A24C-6842697682E0/data/Containers/Data/Application/A66BB9FC-31A0-48C5-97ED-B696085B0B5C/Documents/../Library/

I've just placed there some file, let say test.txt to /test.txt, and it's just available there.

After re-deploy (re-installation), file is still available, but the 'core' path has been changed.
However 'new core' path, it's just available via those SQLite/PCLStorage fields (it's not specific to SQLite/PCLStorage - just wanted to be clear), so I'm just accessing /test.txt, and the file is still there, even if new folder looks like:
/Users/<mac_user_username>/Library/Developer/CoreSimulator/Devices/A37D78CD-EF11-4E33-A24C-6842697682E0/data/Containers/Data/Application/E313A151-2036-4C79-A15F-2549508DC1F5/Documents/../Library

Development

Special protocol

The 'Special Protocol' is Kodi's solution to platform dependent directories. Common directory names are assigned a special://[name] path which is passed around inside Kodi and then translated to the platform specific path before the operating system sees it. This helps keep most of the platform mess centralized in the code.

2Default OS mappings

1 Available Paths

Path	Description
`special://xbmc`	Kodi's installation root directory. This path is read-only contains the Kodi binary, support libraries and default configuration files, skins, scripts and plugins. Users should not modify files or install addons in this directory. Note: The special://xbmc/ path is still valid for newer versions that have been renamed to Kodi. special://kodi/ does not exist yet.
`special://home`	Kodi's user specific (OS user) configuration directory. This path contains a writable version of the special://xbmc directories. Any addons should be installed here.
`special://temp`	Kodi's temporary directory. This path is used to cache various data during normal usage. Unless you need the log, nothing in this directory is detrimental to Kodi's operation. Normally special://home/temp
`special://masterprofile`	Kodi's main configuration directory. Normally located at special://home/userdata, this directory contains global settings and sources, as well as any Kodi profile directories. Normally special://home/userdata
`special://profile`	Kodi's currently active profile directory. This directory points at special://masterprofile/profile_name (or special://masterprofile if no profile is in use) and contains per profile overrides for settings and sources.
`special://subtitles`	User defined custom subtitle path. Set it in Video Settings.
`special://userdata`	Alias from special://masterprofile.
`special://database`	This path contains the database files Kodi uses to store library info. Normally special://masterprofile/Database.
`special://thumbnails`	This path contains cached thumbnails. Normally special://masterprofile/Thumbnails
`special://recordings`	This path contains saved PVR recordings.
`special://screenshots`	This path contains Kodi screen shots. You will be asked to specify this directory the first time you take a screen shot.
`special://musicplaylists`	This path contains saved music playlists. Normally special://profile/playlists/music.
`special://videoplaylists`	This path contains saved video playlists. Normally special://profile/playlists/video.
`special://cdrips`	This path contains the tracks from CDs you rip with Kodi. You will be asked to specify this directory the first time you rip a CD.
`special://skin`	This path points to the currently active skin's root directory.
`special://logpath`	This path points to the path where the log file is saved.
`library://video/`	This path points to the Video Library folders and to the file Sources
`library://music/`	This path points to the Music Library folders and to the file Sources

2 Default OS mappings

Bulleted list item

2.1 Android

special://xbmc - /data/data/org.xbmc.kodi/cache/apk/assets/
special://home - /sdcard/Android/data/org.xbmc.kodi/files/.kodi/
special://temp - /sdcard/Android/data/org.xbmc.kodi/files/.kodi/temp/

2.2 iOS

Apple TV 2 (black)

special://xbmc - /private/var/stash/Applications/Kodi.frappliance/KodiData/KodiHome
special://home - /private/var/mobile/Library/Preferences/Kodi
special://temp - /private/var/mobile/Library/Preferences/Kodi/temp

iDevice

special://xbmc - /Applications/Kodi.app/KodiData/KodiHome <- Symbolic link, but the real path has some random characters in it.
special://home - /private/var/mobile/Library/Preferences/Kodi
special://temp - private/var/mobile/Library/Preferences/Kodi/temp

2.3 Linux

special://xbmc - /usr/share/kodi when installed from a binary package (ie PPA, rpm, deb, etc). /usr/local/share/kodi when compiled (unless you specify an alternate prefix)
special://home - /home/[username]/.kodi

Note: The '.', this directory is hidden so you may need to enable hidden files in your file manager to see it.

2.4 Mac OS X

special://xbmc - /Applications/Kodi.app/Contents/Resources/Kodi
special://home - /Users/[username]/Library/Application Support/Kodi
special://temp - /Users/[username]/.kodi/temp

Note: The '.', this directory is hidden so you need to enable hidden files to see it. See Mac FAQ for more info.

Special Folder C Mac Library