Top Productivity apps in Japan 🇯🇵

iOSMay 18, 2026· Snapshot dated View all snapshotsMethodology

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

iOSAndroid
#App / PublisherIntel
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 71
  8. 81
  9. 9
  10. 10
  11. 117
  12. 12
  13. 132
  14. 143
  15. 152
  16. 161
  17. 173
  18. 182
  19. 191
  20. 201
  21. 217
  22. 22
  23. 231
  24. 243
  25. 252
  26. 261
  27. 27
  28. 282
  29. 29
  30. 303
  31. 311
  32. 324
  33. 332
  34. 34
  35. 35
  36. 361
  37. 374
  38. 384
  39. 397
  40. 401
  41. 419
  42. 4212
  43. 434
  44. 441
  45. 4510
  46. 466
  47. 4713
  48. 485
  49. 493
  50. 501

What changed

Movement between the previous day and May 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 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.

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