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Similar todos
make "upgrade button" stand out 
#penelopeai
Improved upgrade modal 
#melies
Improved upgrade modal #melies
add new upgrade screen to 
#infinitestories 2.0
adding a popup to upgrade 
#thecompaniesapi
add success/error callbacks to Upgrade button 
#tweetphoto
Improve upgrade modal #melies
Built the in-app upgrade modal for 
#connectify
add button 90 
#cssbuttons
created new upgrade screen 
#smartbook
Implement upgrade to pro modal 
#prototape