Developers of a new app that allows users to buy "time" rather than data believe it could change the way we top up our phones.
Data Clock, by 2degrees, will allow people to buy 5 minutes of unlimited data for about 50 cents, 10 minutes for 60 cents, an hour for $1.50, three hours for $2 and 24 hours of unlimited data will cost $6.
However, pricing will be dynamic and will vary from day-to-day.
2degrees chief marketing officer Roy Ong said the app could be used by people when they ran out of data on their existing plans, or those who elected to top their calls and texts and only use Data Clock when they needed it.
"We've found people don't understand how much data they need but interestingly at the same time we've never seen more data use on our network," he said.