Top Productivity iPhone Apps Ranking in Japan

See the full list of Japan iPhone Productivity apps for September 20, and read the full analysis below

Last updated : September 20, 2026

Store Rank		App and Publisher	Category	Store Rank	Change
1	1	ChatGPTOpenAI OpCo, LLC	Productivity	1	=
2	2	Google GeminiGoogle LLC	Productivity	2	=
3	3	Gmail - Email by GoogleGoogle LLC	Productivity	3	2
4	4	Claude by AnthropicAnthropic PBC	Productivity	4	1
5	5	Microsoft CopilotMicrosoft Corporation	Productivity	5	1
6	6	Google DriveGoogle LLC	Productivity	6	=
7	7	TimeTree: Shared CalendarTimeTree, Inc.	Productivity	7	2
8	8	Google SheetsGoogle LLC	Productivity	8	1
9	9	Grok AIX Corp.	Productivity	9	1
10	10	Yahoo!メールYahoo Japan Corporation	Productivity	10	4
11	11	Google DocsGoogle LLC	Productivity	11	1
12	12	Google Calendar: Get OrganizedGoogle LLC	Productivity	12	3
13	13	Microsoft AuthenticatorMicrosoft Corporation	Productivity	13	5
14	14	Microsoft OutlookMicrosoft Corporation	Productivity	14	3
15	15	Link to WindowsMicrosoft Corporation	Productivity	15	3
16	16	Microsoft ExcelMicrosoft Corporation	Productivity	16	3
18	17	AI Chatbot - NovaSCALEUP YAZILIM HIZMETLERI ANONIM SIRKETI	Productivity	18	9
19	18	Chatbot App: AI AssistantTAPSUITE YAZILIM HIZMETLERI ANONIM SIRKETI	Productivity	19	1
20	19	Simple Calendar Daily PlannerKomorebi Inc.	Productivity	20	3
21	20	Microsoft WordMicrosoft Corporation	Productivity	21	5
22	21	シフトボード：バイトの給料計算とシフト管理Recruit Co.,Ltd.	Productivity	22	=
23	22	Microsoft OneDriveMicrosoft Corporation	Productivity	23	1
24	23	Notion: Notes, Tasks, AINotion Labs, Incorporated	Productivity	24	2
25	24	Dropbox: Cloud Storage BackupDropbox, Inc.	Productivity	25	4
26	25	Google SlidesGoogle LLC	Productivity	26	7
27	26	Notta Transcribe Voice to TextMind Cruiser Limited	Productivity	27	1
28	27	Gemini NotebookGoogle LLC	Productivity	28	2
29	28	Microsoft PowerPointMicrosoft Corporation	Productivity	29	4
30	29	Trace - AI Calendar, PlannerCorca, Inc.	Productivity	30	13
31	30	Summary - AI Note TakerLabhouse Mobile SL	Productivity	31	=
32	31	Migoo - Time de AI para tudoInfiniteAI Private Limited	Productivity	32	3
33	32	Google Keep - Notes and listsGoogle LLC	Productivity	33	1
34	33	Google OneGoogle LLC	Productivity	34	2
35	34	LockScreenNotesTakumi Banjoya	Productivity	35	2
36	35	Perplexity - AI Search & ChatPerplexity AI Inc.	Productivity	36	3
37	36	SideFlow｜集中タイマー・スマホ制限・勉強と仕事の記録Ryogo Owashi	Productivity	37	-
38	37	Grok BotX Corp.	Productivity	38	4
39	38	QR Code Reader: Quick ScanKomorebi Inc.	Productivity	39	1
40	39	Translator GO: AI TranslateINISATRE, S.L.	Productivity	40	3
41	40	ToDo List Widget & TabsApp Palette LLC	Productivity	41	4
42	41	FocusFlight - Deepfocus TimerCement Planet LTD	Productivity	42	4
43	42	WidgetsmithCross Forward Consulting, LLC	Productivity	43	17
44	43	AI Chat Assistant - ChappieMitissa, LLC	Productivity	44	=
45	44	Opal: Screen Time ControlOPAL OS CORPORATION	Productivity	45	4
46	45	バイトルトーク：バイトコミュニケーションアプリの新常識！dip co.ltd.	Productivity	46	4
47	46	Meta AIMeta Platforms, Inc.	Productivity	47	10
48	47	netprint‐コンビ二で印刷FUJIFILM Business Innovation Corp.	Productivity	48	5
49	48	Genspark AI Workspacegenspark inc	Productivity	49	5
50	49	履歴書作成WEBDIA INC.	Productivity	50	12
51	50	Mobile Scanner App - Scan PDFGlority Global Group Ltd.	Productivity	51	1
52	51	Google Tasks: Get Things DoneGoogle LLC	Productivity	52	5

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Top iOS Productivity Apps in Japan: Ranking Analysis for September 20

ChatGPT is the top iOS Productivity app in Japan for September 20, since it's ranking did not change by 0 positions since last month. ChatGPT is ranked in the Productivity apps category, and was developed by OpenAI OpCo, LLC.

Google Gemini rank has did not change to 2nd position in Japan for September 20, which is a change of 0 positions in ranking since last month. Google Gemini is published by Google LLC and ranked under the Free Productivity apps category in iOS in Japan

Gmail - Email by Google is last of the top 3 Free Productivity apps in Apple Store ranking in Japan for this month, after it's rank increased by 2 positions since last month