diff --git a/Installomator.sh b/Installomator.sh
index 545a928..cbe623c 100755
--- a/Installomator.sh
+++ b/Installomator.sh
@@ -114,6 +114,12 @@ REOPEN="yes"
 #   If given, it will be compared to installed version, to see if download is different.
 #   It does not check for newer or not, only different.
 #
+# - versionKey: (optional)
+#   How we get version number from app. Possible values:
+#     - CFBundleShortVersionString
+#     - CFBundleVersion
+#   Not all software titles uses fields the same. Opera uses the latter.
+#
 # - expectedTeamID: (required)
 #   10-digit developer team ID.
 #   Obtain the team ID by running:
@@ -332,7 +338,7 @@ getAppVersion() {
         if [[ ${#filteredAppPaths} -eq 1 ]]; then
             installedAppPath=$filteredAppPaths[1]
             #appversion=$(mdls -name kMDItemVersion -raw $installedAppPath )
-            appversion=$(defaults read $installedAppPath/Contents/Info.plist CFBundleShortVersionString) #Not dependant on Spotlight indexing
+            appversion=$(defaults read $installedAppPath/Contents/Info.plist $versionKey) #Not dependant on Spotlight indexing
             printlog "found app at $installedAppPath, version $appversion"
         else
             printlog "could not determine location of $appName"
@@ -480,7 +486,7 @@ installAppWithPath() { # $1: path to app to install in $targetDir
 
     # versioncheck
     # credit: Søren Theilgaard (@theilgaard)
-    appNewVersion=$(defaults read $appPath/Contents/Info.plist CFBundleShortVersionString)
+    appNewVersion=$(defaults read $appPath/Contents/Info.plist $versionKey)
     if [[ $appversion == $appNewVersion ]]; then
         printlog "Downloaded version of $name is $appNewVersion, same as installed."
         if [[ $INSTALL != "force" ]]; then
@@ -797,6 +803,10 @@ label=${label:l}
 printlog "################## Start Installomator v. $VERSION"
 printlog "################## $label"
 
+# How we get version number from app
+# (alternative is "CFBundleVersion", that can be used in labels)
+versionKey="CFBundleShortVersionString"
+
 # get current user
 currentUser=$(scutil <<< "show State:/Users/ConsoleUser" | awk '/Name :/ { print $3 }')
 
@@ -2009,8 +2019,9 @@ openvpnconnectv3)
 opera)
     name="Opera"
     type="dmg"
-    downloadURL="https://get.geo.opera.com/ftp/pub/opera/desktop/"$( curl -fs "https://get.geo.opera.com/ftp/pub/opera/desktop/" | grep href | tail -1 | tr '"' '\n' | grep "/" | head -1 )"mac/Opera_"$( curl -fs "https://get.geo.opera.com/ftp/pub/opera/desktop/" | grep href | tail -1 | tr '"' '\n' | grep "/" | head -1 | sed -E 's/^([0-9.]*)\//\1/g' )"_Setup.dmg"
-    appNewVersion="$( curl -fs "https://get.geo.opera.com/ftp/pub/opera/desktop/" | grep href | tail -1 | tr '"' '\n' | grep "/" | head -1 | sed -E 's/^([0-9]*\.[0-9]*).*\//\1/g' )"
+    downloadURL=$(curl -fsIL "$(curl -fs "$(curl -fsIL "https://download.opera.com/download/get/?partner=www&opsys=MacOS" | grep -i "^location" | cut -d " " -f2 | tail -1 | tr -d '\r')" | grep download.opera.com | grep -io "https.*yes" | sed 's/\&amp;/\&/g')" | grep -i "^location" | cut -d " " -f2 | tr -d '\r')
+    appNewVersion="$(curl -fs "https://get.geo.opera.com/ftp/pub/opera/desktop/" | grep "href=\"\d" | sort -V | tail -1 | tr '"' '\n' | grep "/" | head -1 | tr -d '/')"
+	versionKey="CFBundleVersion"
     expectedTeamID="A2P9LX4JPN"
     ;;
 pacifist)
@@ -2383,8 +2394,10 @@ taskpaper)
 teamviewer)
     name="TeamViewer"
     type="pkgInDmg"
+    packageID="com.teamviewer.teamviewer"
     pkgName="Install TeamViewer.app/Contents/Resources/Install TeamViewer.pkg"
     downloadURL="https://download.teamviewer.com/download/TeamViewer.dmg"
+    appNewVersion=$(curl -fs "https://www.teamviewer.com/en/download/mac-os/" | grep "Current version" | cut -d " " -f3 | cut -d "<" -f1)
     expectedTeamID="H7UGFBUGV6"
     ;;
 teamviewerhost)
@@ -2392,6 +2405,7 @@ teamviewerhost)
     type="pkgInDmg"
     packageID="com.teamviewer.teamviewerhost"
     pkgName="Install TeamViewerHost.app/Contents/Resources/Install TeamViewerHost.pkg"    downloadURL="https://download.teamviewer.com/download/TeamViewerHost.dmg"
+    appNewVersion=$(curl -fs "https://www.teamviewer.com/en/download/mac-os/" | grep "Current version" | cut -d " " -f3 | cut -d "<" -f1)
     expectedTeamID="H7UGFBUGV6"
     #blockingProcessesMaxCPU="5" # Future feature
     #Company="TeamViewer GmbH"
@@ -2401,6 +2415,7 @@ teamviewerqs)
     name="TeamViewerQS"
     type="dmg"
     downloadURL="https://download.teamviewer.com/download/TeamViewerQS.dmg"
+    appNewVersion=$(curl -fs "https://www.teamviewer.com/en/download/mac-os/" | grep "Current version" | cut -d " " -f3 | cut -d "<" -f1)
     appName="TeamViewerQS.app"
     expectedTeamID="H7UGFBUGV6"
     ;;