AppLovin, the app marketing company for developers, is said to be acquiring Berlin-based start-up Adjust for around $1 billion.
Adjust makes measurement tools for developers to gain a deeper insight over the performance of their app ad campaigns.
The transaction has yet to be approved by the regulators and has not been publicly announced.
AppLovin has an approximate value of $2 billion and is looking to go public in 2021.
A spokesperson of the company declined to comment on the deal to Bloomberg.
With part of its business in game publishing, the company boasts some 420 million daily active users and a reach of 1.5 billion devices each month.