Press Release

ACI Worldwide, Inc. To Release Second Quarter 2013 Financial Results

July 17, 2013

Management will host a conference call at 8:30 am EST to discuss these results.  Interested persons may access a real-time audio broadcast of the teleconference at http://www.aciworldwide.com/investorrelations or use the following numbers for dial in participation:  US/Canada: (866) 914-7436, International/Local:  +1 (817) 385-9117.   Please provide your name, the conference name ACI Worldwide, Inc. and conference ID code 20058556.

There will be a replay available for two weeks on (855) 859-2056 for US/Canada Dial-In and +1 (404) 537- 3406 for International/Local Dial-In participants.

About ACI Worldwide

ACI Worldwide powers electronic payments and banking for more than 2,600 financial institutions, retailers and processors around the world. ACI software enables $13 trillion in payments each day, processing transactions for more than 250 of the leading global retailers, and 18 of the world’s 20 largest banks. Through our integrated suite of software products and hosted services, we deliver a broad range of solutions for payments processing, card and merchant management, online banking, mobile, branch and voice banking, fraud detection, and trade finance. To learn more about ACI and the reasons why our solutions are trusted globally, please visitwww.aciworldwide.com. You can also find us on www.paymentsinsights.com or on Twitter @ACI_Worldwide.

Contact details

John Kraft, Vice President, Investor Relations & Strategic Analysis
ACI Worldwide
239-403-4627
john.kraft@aciworldwide.com

Investor Contacts

John Kraft, Head of Strategy & Finance
Email: john.kraft@aciworldwide.com

Global Headquarters:
ACI Worldwide
2811 Ponce de Leon Blvd, PH1
Coral Gables, FL 33134