AFCU Card Guard is a free Android application developed by America First Credit Union. With this app, you can have complete control over your Visa cards. You can limit where and how your cards are used by setting amounts, merchants, transaction types, and locations. The changes you make are effective immediately, and you can make them while on the go.

One of the best features of Card Guard is the real-time alerts that you receive when your card is authorized or declined. You can set up alerts based on your preferences. Additionally, you can lock your card when you're not using it and turn it on when you're ready to make a payment. Another excellent feature is setting a dollar threshold that limits your card transactions to a specific amount you specify.

AFCU Card Guard also allows you to define a geographic location where your cards will work, or you can select "My Location" to authorize charges in the vicinity of your Android device. You can also specify which kinds of merchants or transaction types can clear your account. In conclusion, America First Card Guard provides complete control over your Visa cards, and all the changes you make are effective instantly.