The backer was Tokyo-based Global Brain.
The company intends to use the funds to continue to develop its solution and expand in Japana and China.
Founded in September 2010 and led by Changsu Lee (CEO), Jeong Seok Roh (CSO), 5Rocks develops mobile BI tools focused on improving user retention in mobile gaming apps. Its closed beta tools have been used by Sunday Toz, Link Tomorrow, Gamevil, Load Complete, Rocket Oz, and Momo, among others.
The company, which had prevously raised $1.8m, provided a mobile-based restaurant finder and booking services for Korean consumers.