Ad and discovery specialist to aid developers on SK Planet's T Store app portal.
The deal represents a new marker in Tapjoy's move away from its slightly controversial roots.
The firm rose to fame by offering incentivised downloads for consumers. Effectively, it paid people to download apps on the basis that once those products were high in the chart, legitimate paid for downloads followed.
That process was banned by Apple, so Tapjoy moved to a more conventional advertising platform, with users selecting ads in exchange for virtual rewards or premium content.
Now, it will bring these features to T Store's 15 million subscribers and 300,000 content offerings.
And the hope is that the alliance might help Korean developers reach an international audience. Selected T Store apps will be given marketing funds via Tapjoy's platform to hit overseas markets.
"We are excited to be the first global advertising platform to collaborate with T Store," said Tapjoy CEO, Mihir Shah.
"We expect that Tapjoy's partnership with SK Planet will enhance the consumer experience through an increased variety of offerings and provide developers with more opportunities."
The announcement follows Tapjoy's introduction earlier this year of its new Tapjoy $5m Asia Fund. As part of this deal, a portion of the Asia Fund will be made available for T-Store developers.