5+ similar apps compared and reviewed
Whether you want more options like 家紋 日本No.1 8,000種以上のデータ or a completely different take on the same concept, our curated list of 5+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.
Easily calculate graduation years, ages, and convert between Gregorian and Japanese eras. Customize for early or late birthdays, or even years of repeating a grade. All information is accessible without any advertisements.
This app serves as a digital appendix for diaries, offering a wealth of information on Japanese living, etiquette, and culture. It includes details on manners, calendars, unit conversions, and various trivia. Users can bookmark content and view it offline, with language switching between Japanese and English.
