Rapadev LLC has introduced payment software for Apple Inc.'s iPhone.

Its iPay POS Credit Card Terminal software is designed to be more flexible than competing applications, which limit merchants to specific merchant account providers or gateways.

The Tustin, Calif., company's iPay POS software works with several providers and gateways and the company has plans to add more.

It also works with card reader attachments and meets industry security standards.

Whereas payment apps "all essentially do the same thing, they have restrictions or shortcomings to their operation. … We developed iPay POS to address these issues," Randy Palermo, Rapadev's lead developer, said in a press release Wednesday.

The software allows unlimited test transactions and 10 live transactions for free.

Merchants wishing to continue using the app would buy added transactions within the software.

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