Top Productivity apps in Japan 🇯🇵

iOSJune 18, 2026· Snapshot dated View all snapshotsMethodology

As of June 18, 2026, ChatGPT is the #1 Productivity app in Japan on iOS.

iOSAndroid
#App / PublisherIntel
  1. 1
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  7. 71
  8. 81
  9. 9
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  14. 141
  15. 151
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  17. 171
  18. 181
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  27. 2710
  28. 281
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  32. 327
  33. 3337
  34. 341
  35. 353
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  38. 388
  39. 392
  40. 404
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  42. 42
  43. 432
  44. 444
  45. 451
  46. 463
  47. 472
  48. 48
  49. 49
  50. 50

What changed

Movement between the previous day and June 18, 2026.

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 June 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.

Related rankings

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with editorial review, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by the apps, publishers, or platforms referenced. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Data licensed under CC-BY-NC 4.0