If you're like me, your key ring is cluttered. Besides a car and apartment key, I have eight loyalty cards that I like to have on me to save money.
This is where Key Ring comes in. You can add cards by taking a picture of the bar code then choose the retailer.
If the picture option doesn't work, you can manually enter the bar code to have it stored.
Once you've entered your cards, you can easily access them to scan in a store.
If the machine you're using doesn't scan your phone's screen, there's an option that shows just the numbers so the teller can manually enter the data.