Kredo is free iPad app for showcases your portfolio. It allows users to display your work in Retina-quality, high-resolution images that can be shared via email, social media, or within the app itself to other users.
Managing your portfolios through the app can be done without an Internet connection, and work can be imported from your Photo Library, Dropbox, iTunes, or Format.
The app can be used in one-on-one interviews or in presentations. It's a sort of one-stop-shop for your entire portfolio and is surprisingly usable. You can also share your portfolio publicly or privately.
The app is free to download, and includes sharing functions, high resolution images, external display support, and more.