Paris said the move to cheaper unlimited data meant Kiwis would be able to keep up with global browsing habits.
"Kiwis are using more data than ever before, and that number is only set to rise," he said.
Mobile data usage has risen exponentially over the past couple of years. Traffic on Spark's mobile network last year more than tripled, a trend that won't be slowing down any time soon, Paris said.
"We have to recognise data is now a necessity and should be more accessible.
"We've invested millions into our mobile network to provide the capacity that our customers need at scale," he said.
Spark has invested $383 million into its mobile network over the past three years.
"This has given us the ability to launch an unlimited plan that is the best value for data you'll find in New Zealand - and what we think is one of the best value unlimited plans around the world."
Rival internet providers will have to match the plan or risk losing customers.
Telecommunications Users Association of New Zealand (TUANZ) chief executive Craig Young said the move to cheaper unlimited data was an important step.
"It's a good step for the New Zealand market and for users of mobile," he said.
"We've seen this happen overseas where unlimited data has come in and so it was only a matter of time before it happened in New Zealand.
"2degrees have had [an unlimited mobile data plan] in the market for a little while, but this is definitely cheaper."
Young said New Zealand has a "pretty" competitive mobile market but that it may take a while for rivals' prices to fall to a similar level.
"It might be that they actually wait and see how it is received in the marketplace ... they don't always follow immediately," he said.
"Unless you're mobile all the time, then this is just an addition to your standard broadband."
2degrees offers an unlimited mobile plan for $129 per month, while Vodafone New Zealand currently does not have an unlimited mobile data plan.
