The top 20 popular Health & Fitness Apps for Android in Japan (with a recent update)

Check out the top Health & Fitness Apps which had a recent update in Google Play. We went through all Health & Fitness Apps for Android on Google Play in December 2025 and picked the best ones for you to download onto your Android phone. This Android app list is sorted by the popularity in Japan. Last updated on 2025-12-26.
app icon
5.0
Free
MTI Ltd.
5,000,000+ downloads
HEALTH_FITNESS
ルナルナ｜生理日・体調・妊活・基礎体温・ピル服薬管理も！
ルナルナは女性の生理に寄り添って20年以上！！2,200万DL突破しました！！ 次の生理日や排卵日、妊娠しやすい時期/妊娠しづらい時期、ダイエットにオススメの時期や日々の体調など、女性が気になる情報がつまった基本無料の生理日管理アプリです…