ことわざ辞書 is a free Android application developed by JustSystems Corporation. It falls under the category of Business & Productivity and aims to provide users with a comprehensive collection of story proverbs, sayings, and idiomatic expressions. With this app, users can easily access a wide range of idioms, such as [Cold and heat also to equinox], [Yoshi All well that End], [Cheap loses in ze Ino], [Impermanence], and [Shameless].

Additionally, ことわざ辞書 offers compatibility with ATOK extended dictionaries, allowing users to further enhance their input experience. By using this feature in conjunction with ATOK, users can add words that can be converted, making their input more comfortable. The app supports various ATOK extended dictionaries, including ATOK for Android, ATOK for Android Passport version, ATOK for Android trial version, ATOK for Android medical dictionary set, ATOK for Android medical dictionary set trial version, ATOK for au (au Smart Pass), ATOK for amazing obtained (Dokomosugo obtained content), and ATOK for App Pass (Softbank App Pass).

For more information on how to use the ATOK extended dictionary and the operating environment and compatible models, users can refer to the online manual and the Frequently Asked Questions (FAQ) section provided by JustSystems Corporation.