勝手アプリ

かってアプリkatteapuri

noun

  1. mobile phone application installed without carrier approval (esp. on feature phones)
  2. unofficial app

Kanji in this word

Study it in Yanamino

Data from JMdict, KANJIDIC2 (EDRDG), KanjiVG, CC-CEDICT and Make Me a Hanzi. Sources and licences