diff --git a/README.md b/README.md
index b04d89a..97738ea 100644
--- a/README.md
+++ b/README.md
@@ -52,6 +52,7 @@ curl -L https://raw.githubusercontent.com/Yoobic/install-mac/master/install.sh |
 * Mongodb
 * Skype
 * Slack
+* Spectacle
 * Sublime Text 3
 * VirtualBox
 
diff --git a/install.sh b/install.sh
index 264baba..4569a0c 100755
--- a/install.sh
+++ b/install.sh
@@ -65,6 +65,7 @@ inquirer_software() {
            "Mongo" "Mongodb" on
            "Skype" "Skype" on
            "Slack" "Slack" on
+           "Spectacle" "Spectacle" on
            "SublimeText3" "Sublime Text 3" on
            "VirtualBox" "Virtual Box" on
            "Bower" "Bower" on
@@ -141,12 +142,25 @@ inquirer_software
 
 ############ SOFTWARE ############
 echo_title "BEGIN INSTALLING SOFTWARE"
-brew install tree
-brew install wget 
-brew install imagemagick
-brew install git
-brew install python
-
+if ( ! which tree >/dev/null); then
+  brew install tree;
+fi 
+if ( ! which wget >/dev/null); then
+  brew install wget;
+fi 
+if ( ! which imagemagick >/dev/null); then
+  brew install imagemagick;
+fi 
+if ( ! which git >/dev/null); then
+  brew install git;
+fi 
+if ( ! which python >/dev/null); then
+  brew install python;
+fi 
+
+if ([[ $choice == *"all"* ]] || [[ $choice == "Spectacle" ]]); then
+  brew cask install spectacle --force
+fi
 if ([[ $choice == *"all"* ]] || [[ $choice == "SublimeText3" ]]); then
   brew cask install sublime-text3 --force
 fi
diff --git a/test.sh b/test.sh
index 38020a8..2af64c8 100755
--- a/test.sh
+++ b/test.sh
@@ -50,6 +50,7 @@ check_file "$(which subl)" "subl" # check Sublime Text version
 check_file $HOME/.zshrc
 check_file "$app_folder/Sublime Text.app" # check Sublime Text software
 check_file "$app_folder/iTerm.app" # check iTerm2 software
+check_file "$app_folder/Spectacle.app" # check iTerm2 software
 #check_file "$app_folder/alfred.app" # check iTerm2 software
 check_file "$app_folder/Dropbox.app" # check Dropbox software
 check_file "$app_folder/Skype.app" # check Skype software