Top Developer Tools — Top Paid apps in Japan 🇯🇵

iOSJune 13, 2026· Snapshot dated View all snapshotsMethodology

As of June 13, 2026, RegEx Lab: Regular Expressions is the #1 Developer Tools — Top Paid app in Japan on iOS.

iOSAndroid
#App / PublisherIntel
  1. 125
  2. 21
  3. 387
  4. 4NEW
  5. 5NEW
  6. 65
  7. 75
  8. 81
  9. 91
  10. 101
  11. 111
  12. 126
  13. 138
  14. 142
  15. 154
  16. 163
  17. 173
  18. 183
  19. 193
  20. 203
  21. 213
  22. 223
  23. 233
  24. 242
  25. 251
  26. 263
  27. 27
  28. 287
    eBook Studio: Create & Publish

    株式会社キイロ乃カモ

  29. 294
  30. 3026
  31. 313
  32. 323
  33. 333
  34. 343
  35. 353
  36. 363
  37. 372
  38. 382
  39. 395
  40. 4017
  41. 413
  42. 423
  43. 436
    RenPyLinter

    武汉小强科技有限责任公司

  44. 444
  45. 454
  46. 464
  47. 474
  48. 484
  49. 493
  50. 501

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 — Top Paid app in Japan on iOS?
As of June 13, 2026, RegEx Lab: Regular Expressions is the #1 Developer Tools — Top Paid 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