The version 4 app build comes with new features and improvements which make for smoother production and a more enjoyable reading experience. 

Upgrading to the new version involves migrating your existing app design. The color scheme of your existing app can be adapted to the new design, however the kiosk logo is a brand new element. You'll need to send us your desired kiosk logo as a scalable vector graphic (SVG) (requirements). 

Upgrade in just three simple steps:

1. You send us the SVG file of your kiosk logo (requirements) via email
2. We send you a preview version of your app for approval
3. You give us the green light and we make the update