Top Developer Tools apps in Japan 🇯🇵
As of May 18, 2026, TestFlight is the #1 Developer Tools app in Japan on iOS.
iOSAndroid
#App / PublisherCategoryIntel
- 1
- 21
- 31
- 4
- 51
- 61
- 7NEW
- 81
- 97
- 102
- 11
- 123
開発ツール - 131
- 144
- 152
- 167
- 174
- 18
- 191
- 203
- 216
- 222
- 238
- 247
- 253
- 26
- 2713
- 286
- 2910
- 302
- 315
- 32NEW
開発ツール - 3310
- 344
- 356
- 363
- 375
- 389
- 3912
- 405
- 4111
- 423
- 4337
開発ツール - 4419
- 451
Para desarrolladores - 464
- 472
- 487
- 493
- 5010
What changed
Movement between the previous day and May 18, 2026.
New entrants
アルコー楽#62
Risers
- みんなのレビュー
#80 → #43
Smart Chatbot & AI Assistant#100 → #69
Terminal##82 → #53
Blink Shell, Build & Code#78 → #54
- Jamy-
#51 → #39
Fallers
BluetoothAssistant#42 → #79
CC Pocket: Code Anywhere#63 → #93
Spectre VPN#49 → #78
Google Play Console#37 → #63
Happy: Codex & Claude Code App#64 → #84
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 May 18, 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.