CardHolder is an iPhone application that eliminates the need to carry around physical discount cards. With this app, you can create folders to conveniently organize your cards into different categories. The "Tags" section allows you to quickly find cards related to specific categories.

Additionally, you can create shopping lists within the app by simply entering the necessary information.

For those who want to unlock the full functionality of CardHolder, there is an option to purchase "CardHolder+". This one-time purchase allows you to add more than 10 cards, create more than 5 shopping lists, add more than 2 folders, and use custom tags. It also provides the ability to selectively restore data from backups and offers additional app icon options.

CardHolder is a free lifestyle app that simplifies the management of your discount cards, making it easier and more convenient to access them whenever you need them.