Simple PhoneBook

Simple PhoneBook is a minimalist phone call app designed to simplify phone calling by providing an easy-to-use interface focused solely on making calls. It organizes contacts alphabetically and by Hiragana, catering primarily to Japanese users but also suitable for anyone seeking a straightforward call experience.

Key features include the ability to add a single prefix to outgoing calls with a long-press on the '#' button, support for default phone handlers limited to answer and hang-up functions, and a frequently called numbers list that updates based on your call log. The app is especially helpful for elderly users or those who want to avoid complexity. Contact info is cached for fast startup and can be manually refreshed to update changes.