Top Productivity apps in Japan 🇯🇵
As of June 5, 2026, ChatGPT is the #1 Productivity app in Japan on Android.
AndroidiOS
#App / PublisherCategoryIntel
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What changed
Movement between the previous day and June 5, 2026.
New entrants
Risers
- All PDF Reader, PDF Viewer
#187 → #129
- StellarRecovery
#132 → #86
- QR Scanner & Read All Barcode
#161 → #122
- QR Scanner, All Barcode Scan
#81 → #47
- PDF Reader App - PixPDF
#186 → #153
Fallers
- All Files Manager
#152 → #188
- QR Code Scanner - Read Barcode
#66 → #95
- stac: Focus Timer, Build World
#117 → #145
- Sticky Note: Polar Bear Days
#97 → #124
Notepad - Simple Notes & Memo#157 → #181
Methodology
Rankings are pulled daily from the Android 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.