Personal finance applications have become popular with Australians, one expert has said.

Mobile phone applications by which people can see what they have been spending on their credit card are becoming popular, according to one industry expert.

Charis Palmer, online banking review editor, said Australians are taking note of the personal finance apps, the Sydney Morning Herald reports.

She added: "There's been really good take-up of the mobile banking apps. The growth rate has been significantly higher than the growth rate when they (the banks) first got internet banking."

And Ms Palmer believes there are around ten to 20 per cent of people who use mobile banking, which could include features such as checking how much money is in their savings account.

"The actual downloads of the apps are in the hundreds of thousands range," she noted.

Apps such as Credit Card Pay Off can be downloaded by Australians and it tells them how much interest they will need to pay on their Aussie credit cards, as well as how long it will take to settle.

Pay Off Debt is another device which can help organise people to ensure they know when to start reducing their debt.

A selection of banks also have apps available for download such as St George Banking Application and Westpac Mobile Banking.

The function for the latter organisation which offers Westpac credit cards has been specifically designed for an Apple iPhone or iPhone Touch.

On the device Australians are able to view their latest balance up to 20 transactions and send money to friends and family who have an Aussie bank account.

Personal and business customers will only need one identification number to access their accounts and people are able to schedule payments for a later date thanks to the app.

And those who do banking online will find they can use the same ID and password in order to make it easier to access their financial details.