Enjoy easy and on-the-go credit and debit card management with the CardKey app from Arsenal Credit Union. This app offers a convenient way to:

• Manage your debit or credit card.
• Set up alerts and controls.
• Turn your cards on and off when you’re not using them.
• Notify us when you’re traveling.
• Report your cards as lost or stolen.
• Initiate a dispute on a transaction.
• Filter card transactions.
• Pay your credit card bill.
• Check your CU Rewards balance.
• Login using your fingerprint.

Card registration takes only seconds from any mobile device, and access is secure and protected by multi-factor authentication.

What’s New

Version 15.0.2

General software update including improvements to
* Backend security enhancements
* Payment logic updates to comply with the latest NACHA regulatory standards

Ratings and Reviews

5.0 out of 5
12 Ratings

12 Ratings

Gdhhdhd ,


I love that I can control my card anywhere anytime!! Awesome job Arsenal for letting us members take control!

H. bear ,

Awesome features

Love all the control I have with all on my ACU cards!

BuffaloBillHimself1 ,

Awesome Banking App

Wonderful app. Extremely user friendly.

App Privacy

The developer, Arsenal Credit Union, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Financial Info
  • Contact Info
  • Identifiers
  • Usage Data
  • Diagnostics

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Location
  • User Content

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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