The にじストア ボイスアプリ is a lifestyle application designed for Android users, allowing seamless access to voice recordings purchased from the official にじさんじ store. Users can immediately play back their bought voices and enjoy a curated collection from their favorite streamers. The app features a user-friendly search function, making it easy to locate and listen to preferred audio clips. Additionally, voices downloaded within the app can be enjoyed offline, providing flexibility for users on the go.

In terms of functionality, the app allows users to track their collection status by streamer, showcasing all released and upcoming audio products. It also includes a feature to review previously listened voices, serving as a record of past purchases. As users collect voices, they can earn evolving badges, adding an interactive element to the experience. This app caters to fans wishing to enhance their enjoyment of content from their cherished creators.