とちテレアプリ offers two main functions: a "News App" delivering news from Tochigi and around the world, and a "Communication App" connecting Tochigi Television with its viewers.

The "Tochigi NEWS" section provides local and national news, with some local news available in video format. Users can opt to receive push notifications for breaking news, and national news is sourced from Kyodo News.

The "Disaster Timeline" feature allows users to check past 3-day timelines of disaster information related to their set residential area, including earthquakes (above level 3), heavy rain, and flood alerts. Users can also set up notifications for up to 3 additional regions for disaster updates.

The "Tochigi INFO" section delivers various information such as program details, local events, and recommendations, focusing on providing valuable content centered around Tochigi.

In the "Tochigi POST" section, users can submit photos and videos to Tochigi Television for potential use in programs or on the website, with the possibility of receiving feedback regardless of acceptance.