Top Productivity apps in Japan 🇯🇵

iOSMay 21, 2026· Snapshot dated View all snapshotsMethodology

As of May 21, 2026, ChatGPT is the #1 Productivity app in Japan on iOS.

iOSAndroid
#App / PublisherIntel
  1. 1
  2. 2
  3. 3
  4. 49
  5. 5
  6. 610
  7. 73
  8. 82
  9. 92
  10. 101
  11. 111
  12. 122
  13. 135
  14. 14
  15. 15
  16. 165
  17. 171
  18. 183
  19. 191
  20. 201
  21. 211
  22. 221
  23. 232
  24. 242
  25. 252
  26. 262
  27. 272
  28. 2811
  29. 291
  30. 306
  31. 311
  32. 321
  33. 33
  34. 34
  35. 35
  36. 361
  37. 371
  38. 38
  39. 393
  40. 406
  41. 41
  42. 423
  43. 432
  44. 44
  45. 455
  46. 463
  47. 47
  48. 484
  49. 491
  50. 504

What changed

Movement between the previous day and May 21, 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 May 21, 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