効果音アプリ is a free Android application developed by OWD. It offers a wide range of approximately 350 sound effects. This app includes classic sounds that are commonly used in quizzes and other activities. Users have the option to create a personalized list of their favorite sound effects.

The sound materials used in this app are credited to OtoLogic, with the exception of the 'Other' category. When using the sound materials, users are required to comply with OtoLogic's terms of use, which generally require crediting the source.

With its extensive collection of sound effects, 効果音アプリ is a valuable tool for anyone in need of high-quality audio for various purposes.