Top Productivity iPhone Apps Ranking in Japan

See the full list of Japan iPhone Productivity apps for August 19, and read the full analysis below

Last updated : August 19, 2026

Store Rank		App and Publisher	Category	Store Rank	Change
1	1	ChatGPTOpenAI OpCo, LLC	Productivity	1	=
2	2	Google GeminiGoogle LLC	Productivity	2	=
4	3	Claude by AnthropicAnthropic PBC	Productivity	4	=
5	4	Gmail - Email by GoogleGoogle LLC	Productivity	5	2
6	5	Grok AIX Corp.	Productivity	6	=
7	6	Google DriveGoogle LLC	Productivity	7	2
8	7	Google SheetsGoogle LLC	Productivity	8	1
9	8	TimeTree: Shared CalendarTimeTree, Inc.	Productivity	9	2
10	9	Yahoo!メールYahoo Japan Corporation	Productivity	10	2
11	10	Microsoft AuthenticatorMicrosoft Corporation	Productivity	11	1
12	11	Google DocsGoogle LLC	Productivity	12	1
13	12	Microsoft ExcelMicrosoft Corporation	Productivity	13	=
14	13	Microsoft OutlookMicrosoft Corporation	Productivity	14	1
15	14	Google Calendar: Get OrganizedGoogle LLC	Productivity	15	3
16	15	PDF Toolkit - Organize & EditFuzhou Nengge Technology Co.,Ltd.	Productivity	16	2
17	16	Microsoft WordMicrosoft Corporation	Productivity	17	1
18	17	Link to WindowsMicrosoft Corporation	Productivity	18	1
19	18	OAZUKERaizo Kawaguchi	Productivity	19	9
20	19	Google SlidesGoogle LLC	Productivity	20	=
21	20	Dropbox: Cloud Storage BackupDropbox, Inc.	Productivity	21	7
22	21	Simple Calendar: ToDo PlannerKomorebi Inc.	Productivity	22	1
23	22	Taska: To-Do List & PlannerCanvasLab	Productivity	23	14
25	23	Microsoft OneDriveMicrosoft Corporation	Productivity	25	1
26	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	26	3
27	25	Notion: Notes, Tasks, AINotion Labs, Incorporated	Productivity	27	2
28	26	Notta Transcribe Voice to TextMind Cruiser Limited	Productivity	28	4
29	27	Microsoft PowerPointMicrosoft Corporation	Productivity	29	2
30	28	Gemini NotebookGoogle LLC	Productivity	30	1
31	29	Microsoft 365 CopilotMicrosoft Corporation	Productivity	31	5
32	30	LockScreenNotesTakumi Banjoya	Productivity	32	2
33	31	Opal: Screen Time ControlOPAL OS CORPORATION	Productivity	33	=
34	32	TeraBox: 1TB Cloud & AI SpaceFLEXTECH INC.	Productivity	34	4
35	33	Yondo Todo List on Lock ScreenRyunosuke Nagase	Productivity	35	9
36	34	Google Keep - Notes and listsGoogle LLC	Productivity	36	2
37	35	Perplexity - AI Search & ChatPerplexity AI Inc.	Productivity	37	2
38	36	TUNAGチャットSTAMEN, inc.	Productivity	38	11
39	37	Summary - AI Note TakerLabhouse Mobile SL	Productivity	39	3
40	38	履歴書作成WEBDIA INC.	Productivity	40	3
41	39	Google OneGoogle LLC	Productivity	41	1
42	40	ToDo List Widget & TabsApp Palette LLC	Productivity	42	3
43	41	QR Code Reader: Quick ScanKomorebi Inc.	Productivity	43	2
44	42	Chatbot App: AI AssistantTAPSUITE YAZILIM HIZMETLERI ANONIM SIRKETI	Productivity	44	2
45	43	Genspark AI Workspacegenspark inc	Productivity	45	1
46	44	WidgetsmithCross Forward Consulting, LLC	Productivity	46	1
47	45	FocusFlight - Deepfocus TimerCement Planet LTD	Productivity	47	1
48	46	netprint‐コンビ二で印刷FUJIFILM Business Innovation Corp.	Productivity	48	1
49	47	PDF Reader - OCR Scan EditFuzhou Jiange Technology Co.,Ltd.	Productivity	49	=
50	48	Google Tasks: Get Things DoneGoogle LLC	Productivity	50	=
51	49	CamScanner - PDF Scanner AppINTSIG Information Co., Ltd	Productivity	51	=
52	50	ChouseisanMixtend Inc.	Productivity	52	=
53	51	Focus Traveller - Flow TimerWEI JEN CHEN	Productivity	53	3

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Top iOS Productivity Apps in Japan: Ranking Analysis for August 19

ChatGPT is the top iOS Productivity app in Japan for August 19, 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 August 19, 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

Claude by Anthropic is last of the top 3 Free Productivity apps in Apple Store ranking in Japan for this month, after it's rank did not change by 0 positions since last month