Visitors to the ACI Worldwide Stand at Sibos Can Play to Win
                   an iPad2 -- Sibos Stand C136

NEW YORK, Sept. 14, 2011 (GLOBE NEWSWIRE) -- ACI Worldwide
(Nasdaq:ACIW), a leading international provider of payment systems,
today announced that its iPad game 'ACI Challenge' is now available for
download for free from iTunes -- simply search for ACI or visit
http://bit.ly/oj844W. The game ranks players from around the world,
with high scores for 'collecting' the different components of payment
processing with speed, accuracy and consistency -- based on ACI Money
Transfer System(TM), ACI Worldwide's global payment processing
solution.

The game, the original version of which received its debut earlier in
2011, has proved highly popular at previous events, prompting ACI to
release the updated game as an app onto iTunes so it can be downloaded
and played by anyone with an iPad or iPad2. At the Sibos event in
Toronto, September 19-23, eligible attendees will be able to visit the
ACI stand to play the game on dedicated iPads, and those with the best
performance will get on to the leader board. The holder of the top
score when the competition closes at Sibos will win an iPad2.

As a global payment processing solution, Money Transfer System delivers
advanced payment management and execution and helps streamline banking
operations. It is a multibank, multicurrency solution that provides
24x7 payments processing capabilities, and interfaces to multiple
Clearing and Settlement Mechanisms (RTGS, ACH, and Deferred Net
Settlement systems). It also interfaces easily with messaging systems,
internal systems, and numerous third-party banking applications. It
provides a single-source solution for domestic and international
payments processing, as well as for message switching for SWIFTNet and
other networks.

For more information on ACI Money Transfer System please go to
www.aciworldwide.com/moneytransfersystem. For information about ACI's
presence at Sibos or to arrange a meeting with an ACI expert please
visit http://www.aciworldwide.com/sibos. Terms and conditions apply to
the competition, details will be available at the ACI Sibos stand,
C136.

Twittercue: ACI Worldwide launches iPad game in time for #Sibos
http://bit.ly/nts4cG or download at http://bit.ly/oj844W @ACI_Worldwide

About ACI Worldwide

ACI Worldwide powers electronic payments for more than 800 financial
institutions, retailers and processors around the world, with its broad
and integrated suite of electronic payment software. More than 90
billion times each year, ACI's solutions process consumer payments. On
an average day, ACI software manages more than US$12 trillion in
wholesale payments. And for more than 160 organizations worldwide, ACI
software helps to protect their customers from financial crime. To
learn more about ACI and understand why we are trusted globally, please
visit www.aciworldwide.com. You can also find us on
www.paymentsinsights.com or on Twitter @ACI_Worldwide.


CONTACT: Catherine Eyres
         ACI Worldwide
         +44 (0) 1923 812741
         press@aciworldwide.com