Dekisugi - Japanese Dictionary

Dekisugi (デキスギ) is a Japanese learner's dictionary app. Each entries in this dictionary are colour-labeled based on their relative prevalence in various written materials (e.g. newspapers). Green-labeled entries would be the most prevalent, red would be the least, and there are gradual variations in between. This classification aims to help you decide which entries to learn based on your level of study.

Dekisugi (出来過ぎ) is a Japanese word which can be interpreted as "too capable"—something which this app seems to be not.