Top Developer Tools apps in Japan 🇯🇵

iOSJune 2, 2026· Snapshot dated View all snapshotsMethodology

As of June 2, 2026, TestFlight is the #1 Developer Tools app in Japan on iOS.

iOSAndroid
#App / PublisherIntel
  1. 1
  2. 2
  3. 3
  4. 4
  5. 51
  6. 61
  7. 72
  8. 8
  9. 91
  10. 104
  11. 114
  12. 124
  13. 132
  14. 141
  15. 152
  16. 162
  17. 175
  18. 187
  19. 191
  20. 204
  21. 216
  22. 229
  23. 233
  24. 241
  25. 252
  26. 265
  27. 277
  28. 289
  29. 2913
  30. 302
  31. 3114
  32. 3210
  33. 334
  34. 341
  35. 352
  36. 366
  37. 379
  38. 3812
  39. 399
  40. 405
  41. 4111
  42. 424
  43. 433
  44. 4433
  45. 4545
  46. 462
  47. 478
  48. 483
  49. 4911
  50. 5014

What changed

Movement between the previous day and June 2, 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 Developer Tools app in Japan on iOS?
As of June 2, 2026, TestFlight is the #1 Developer Tools 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