The app ひみつのアイプリ きゃらあらーむ-ボイスアラームタイマー transforms popular characters from the series into a unique voice alarm and timer application. Users can set alarms and timers using character voices, which are all newly recorded. The app allows for the purchase of additional voice packs, enhancing the user experience with a variety of character voices. Some voices are available for free, providing a taste of what the app offers.

In addition to its core functionalities, the app features a character selection option that personalizes the experience further. Users can access their character rooms from related games and utilize a QR code scanning feature for additional connectivity. The app is compatible with Android devices running OS 9 and above, and while some features are free, full access requires purchasing paid items.