Top Productivity apps in Japan 🇯🇵
As of May 18, 2026, ChatGPT is the #1 Productivity app in Japan on iOS.
iOSAndroid
#App / PublisherCategoryIntel
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Productividad - 9
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仕事効率化 - 117
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バイトルトーク：バイトコミュニケーションアプリの新常識！ディップ株式会社
仕事効率化 - 4510
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仕事効率化 - 501
仕事効率化
What changed
Movement between the previous day and May 18, 2026.
New entrants
Risers
ToDo List - Task manager list#75 → #61
- Microsoft OneNote
#60 → #47
- Plaud: AI Note Taker
#54 → #42
DeepSeek - AI Assistant#91 → #80
- Obsidian - Connected Notes
#55 → #45
Fallers
bottoアプリ#38 → #57
YYProbe - 会話の可視化アプリ -#43 → #60
AI Chatbot - Nova#73 → #83
Folderly - Academic Organizer#86 → #96
アプリ制限 Zentime - ロックでスマホ制限。依存対策#64 → #73
Methodology
Rankings are pulled daily from the iOS store charts for Japan. We snapshot the top entries each day and compute day-over-day change relative to the prior snapshot. See our full methodology for data sources, refresh cadences, and quality filters.
Frequently asked questions
What is the #1 Productivity app in Japan on iOS?
As of May 18, 2026, ChatGPT is the #1 Productivity app in Japan on iOS, based on the public iOS chart rankings Marlvel tracks daily.
How often are these rankings updated?
Marlvel snapshots the iOS charts for Japan every day and computes day-over-day movement. The "Current" page always reflects the latest snapshot; dated archive pages preserve each day's top 50.
Where does Marlvel's ranking data come from?
Rankings are pulled from the public iOS store charts for Japan. See our methodology for data sources, refresh cadence, and the quality filters applied before a ranking is indexed.