Top Productivity iPhone Apps Ranking in Japan

See the full list of Japan iPhone Productivity apps for August 18, and read the full analysis below

Last updated : August 18, 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	=
4	4	Claude by AnthropicAnthropic PBC	Productivity	4	=
5	5	Google DriveGoogle LLC	Productivity	5	1
6	6	Grok AIX Corp.	Productivity	6	1
7	7	TimeTree: Shared CalendarTimeTree, Inc.	Productivity	7	=
8	8	Yahoo!メールYahoo Japan Corporation	Productivity	8	=
9	9	Google SheetsGoogle LLC	Productivity	9	=
10	10	Microsoft AuthenticatorMicrosoft Corporation	Productivity	10	14
11	11	Google DocsGoogle LLC	Productivity	11	=
12	12	Google Calendar: Get OrganizedGoogle LLC	Productivity	12	=
13	13	Microsoft ExcelMicrosoft Corporation	Productivity	13	2
14	14	Dropbox: Cloud Storage BackupDropbox, Inc.	Productivity	14	4
15	15	Microsoft OutlookMicrosoft Corporation	Productivity	15	4
16	16	Microsoft WordMicrosoft Corporation	Productivity	16	=
17	17	Link to WindowsMicrosoft Corporation	Productivity	17	3
18	18	PDF Toolkit - Organize & EditFuzhou Nengge Technology Co.,Ltd.	Productivity	18	8
20	19	Google SlidesGoogle LLC	Productivity	20	1
21	20	Simple Calendar: ToDo PlannerKomorebi Inc.	Productivity	21	3
22	21	Microsoft CopilotMicrosoft Corporation	Productivity	22	5
23	22	シフトボード：バイトの給料計算とシフト管理Recruit Co.,Ltd.	Productivity	23	3
24	23	Microsoft OneDriveMicrosoft Corporation	Productivity	24	1
25	24	Notion: Notes, Tasks, AINotion Labs, Incorporated	Productivity	25	3
26	25	Yondo Todo List on Lock ScreenRyunosuke Nagase	Productivity	26	3
27	26	TUNAGチャットSTAMEN, inc.	Productivity	27	41
28	27	OAZUKERaizo Kawaguchi	Productivity	28	39
29	28	Gemini NotebookGoogle LLC	Productivity	29	4
30	29	LockScreenNotesTakumi Banjoya	Productivity	30	2
31	30	Microsoft PowerPointMicrosoft Corporation	Productivity	31	4
32	31	Notta Transcribe Voice to TextMind Cruiser Limited	Productivity	32	1
33	32	Opal: Screen Time ControlOPAL OS CORPORATION	Productivity	33	1
34	33	Google Keep - Notes and listsGoogle LLC	Productivity	34	4
35	34	Perplexity - AI Search & ChatPerplexity AI Inc.	Productivity	35	8
36	35	Microsoft 365 CopilotMicrosoft Corporation	Productivity	36	4
37	36	Taska: To-Do List & PlannerCanvasLab	Productivity	37	3
38	37	TeraBox: 1TB Cloud & AI SpaceFLEXTECH INC.	Productivity	38	17
39	38	ToDo List Widget & TabsApp Palette LLC	Productivity	39	1
40	39	Google OneGoogle LLC	Productivity	40	9
41	40	QR Code Reader: Quick ScanKomorebi Inc.	Productivity	41	4
42	41	Summary - AI Note TakerLabhouse Mobile SL	Productivity	42	6
43	42	履歴書作成WEBDIA INC.	Productivity	43	7
44	43	Genspark AI Workspacegenspark inc	Productivity	44	2
45	44	WidgetsmithCross Forward Consulting, LLC	Productivity	45	6
46	45	Chatbot App: AI AssistantTAPSUITE YAZILIM HIZMETLERI ANONIM SIRKETI	Productivity	46	5
47	46	netprint‐コンビ二で印刷FUJIFILM Business Innovation Corp.	Productivity	47	3
48	47	FocusFlight - Deepfocus TimerCement Planet LTD	Productivity	48	5
49	48	PDF Reader - OCR Scan EditFuzhou Jiange Technology Co.,Ltd.	Productivity	49	4
50	49	Google Tasks: Get Things DoneGoogle LLC	Productivity	50	1
51	50	CamScanner - PDF Scanner AppINTSIG Information Co., Ltd	Productivity	51	19
52	51	ChouseisanMixtend Inc.	Productivity	52	12

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Top iOS Productivity Apps in Japan: Ranking Analysis for August 18

ChatGPT is the top iOS Productivity app in Japan for August 18, 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 18, 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 did not change by 0 positions since last month