Top Productivity iPhone Apps Ranking in Japan

See the full list of Japan iPhone Productivity apps for January 4, and read the full analysis below

Last updated : January 4, 2026

Store Rank		App and Publisher	Category	Store Rank	Change
1	1	ChatGPTOpenAI, L.L.C.	Productivity	1	=
2	2	GrokX.AI Corporation	Productivity	2	1
3	3	Google GeminiGoogle LLC	Productivity	3	1
4	4	Gmail - Email by GoogleGoogle LLC	Productivity	4	=
5	5	Yahoo!メールYahoo Japan Corporation	Productivity	5	=
6	6	Link to WindowsMicrosoft Corporation	Productivity	6	=
7	7	TimeTree: Shared CalendarTimeTree, Inc.	Productivity	7	1
8	8	Google DriveGoogle LLC	Productivity	8	1
9	9	Google NotebookLMGoogle LLC	Productivity	9	2
11	10	Google SheetsGoogle LLC	Productivity	11	=
12	11	Google Calendar: Get OrganizedGoogle LLC	Productivity	12	2
13	12	Microsoft CopilotMicrosoft Corporation	Productivity	13	1
14	13	Google DocsGoogle LLC	Productivity	14	1
15	14	Microsoft OneDriveMicrosoft Corporation	Productivity	15	2
16	15	Google Keep - Notes and listsGoogle LLC	Productivity	16	2
17	16	Simple Calendar: ToDo PlannerKomorebi Inc.	Productivity	17	2
18	17	Notion: Notes, Tasks, AINotion Labs, Incorporated	Productivity	18	2
19	18	Microsoft ExcelMicrosoft Corporation	Productivity	19	3
20	19	PDF Reader - OCR Scan EditFuzhou Jiange Technology Co.,Ltd.	Productivity	20	3
21	20	Google OneGoogle LLC	Productivity	21	3
22	21	Genspark AI Workspacegenspark inc	Productivity	22	1
23	22	Claude by AnthropicAnthropic PBC	Productivity	23	=
24	23	Perplexity - AI Search & ChatPerplexity AI Inc.	Productivity	24	1
25	24	シフトボード：バイトの給料計算とシフト管理Recruit Co.,Ltd.	Productivity	25	2
26	25	Translator GO: AI TranslateINISATRE, S.L.	Productivity	26	=
27	26	Microsoft WordMicrosoft Corporation	Productivity	27	4
28	27	Microsoft OutlookMicrosoft Corporation	Productivity	28	=
29	28	Paper: Sketch, Draw & CreateEvernote Corporation	Productivity	29	10
30	29	Google Tasks: Get Things DoneGoogle LLC	Productivity	30	=
31	30	Mighty Cleaner: Smart Clean UpTianjin New Ideas Technology Co., Ltd.	Productivity	31	2
32	31	Minimal Tabbed ToDo ListApp Palette LLC	Productivity	32	=
33	32	Dropbox: Cloud Storage BackupDropbox, Inc.	Productivity	33	=
34	33	Google SlidesGoogle LLC	Productivity	34	1
35	34	Microsoft AuthenticatorMicrosoft Corporation	Productivity	35	3
36	35	ChatOn AI - Chat Bot AssistantAIBY Incorporated	Productivity	36	2
37	36	Lifebear カレンダーと手帳で予定表スケジュール管理Lifebear inc.	Productivity	37	1
38	37	Notta Transcribe Voice to TextMind Cruiser Limited	Productivity	38	1
39	38	Opal: Screen Time ControlOPAL OS CORPORATION	Productivity	39	4
40	39	QR Code Reader: Quick ScanKomorebi Inc.	Productivity	40	=
41	40	Manus AIBUTTERFLY EFFECT PTE. LTD.	Productivity	41	1
42	41	MEGAMega Limited	Productivity	42	2
43	42	Chat Smith: AI Chatbot & AgentVulcan Labs Company Limited	Productivity	43	3
44	43	WidgetsmithCross Forward Consulting, LLC	Productivity	44	3
45	44	MyRoutine: Routine Habit GoalMinding. co., Ltd.	Productivity	45	=
46	45	パスワード管理 & 個人情報流出対策：ID プロテクションTrend Micro Incorporated	Productivity	46	7
47	46	Microsoft PowerPointMicrosoft Corporation	Productivity	47	3
48	47	netprint‐コンビ二で印刷FUJIFILM Business Innovation Corp.	Productivity	48	=
49	48	トレンドマイクロ VPNTrend Micro Incorporated	Productivity	49	5
50	49	Focus Traveller - Flow TimerWEI JEN CHEN	Productivity	50	3
51	50	FocusFlight - Deepfocus TimerCement Planet LTD	Productivity	51	4

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Top iOS Productivity Apps in Japan: Ranking Analysis for January 4

ChatGPT is the top iOS Productivity app in Japan for January 4, 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, L.L.C..

Grok rank has increased to 2nd position in Japan for January 4, which is a change of 1 positions in ranking since last month. Grok is published by X.AI Corporation and ranked under the Free Productivity apps category in iOS in Japan

Google Gemini is last of the top 3 Free Productivity apps in Apple Store ranking in Japan for this month, after it's rank decreased by -1 positions since last month