Tarombo Batak is an Android application developed by Bang Kutu Gondrong that provides a comprehensive lineage guide for the Batak community. It is a must-have tool for members of the Batak community who want to understand their patrilineal lineage and the interrelationships between family members, as per the Dalihan Natolu philosophy.

The app is designed to be user-friendly and easy to navigate, with a simple interface that displays lineage information in a clear and concise manner. Users can search for their family members by name or browse through the different clans to find their place in the family tree. The app also includes a glossary of terms related to Batak culture and lineage, making it an ideal educational reference tool for those who want to learn more about Batak heritage.