Cardknox Payments

Cardknox Development Inc

About this app

Are you an existing Cardknox client? Download Cardknox Payments to accept and manage payments on the go!

The Cardknox Payments App is the easiest way to process credit and debit card payments anytime and anywhere.
Key-in card details, capture card info through your camera, and send customer email receipts all with the click of a button.
Transaction data syncs with your Cardknox Merchant Portal account so you can track sales and reports via your web browser.
All the Tools You Need to Accept Payments.

- Accept Visa, Mastercard, Discover, and American Express cards
- Send email receipts
- Key-in transaction amount, sales tax, invoice number, billing info, and shipping info
- Capture credit card details through your camera
- Support for signature capture
- Apply full or partial refunds
- Void pending transactions


View and Manage Transaction Data in Your Cardknox Merchant Portal Account

- All payment data syncs with your browser-based Cardknox Merchant Portal account
- View batch summaries, generate custom reports, locate transactions, and much more


Secure and PCI-Compliant

- Cardknox utilizes advanced encryption technology to keep payment data secure and in compliance with PCI security standards


White-Glove Customer Service

- Have any questions? Cardknox customer service is just a quick call or email away


The Lowest Rates

- The Cardknox app is available for free with your Cardknox processing account
- Choose from a simple flat-rate pricing option or custom pricing
- The most competitive rates no matter what.

Ratings and reviews

Just Installed and made and account and when I try to log in it says wrong credentials, won't work.

easy to use

Makes my credit card processing simple

What's new

- Updated the link to the new Tap to Phone Helper app. (Android)
- Fixed a bug where the expiration date was not set correctly on follow-up transactions