🇯🇵Worst Utilities Apps in Japan

The most complained-about utilities apps in Japan on App Store and Google Play, ranked by total negative reviews (1-3 stars) from real users. Updated monthly.

#	App	Platform	Rating	Negative Reviews
1	マイナポータルデジタル庁 How to cancel →	iOS	1.7	483
2	PrintSmashSharp Corporation How to cancel →	iOS	0.0	451
3	IAM＜アイアム＞ShiftPlus Inc, How to cancel →	iOS	2.1	442
4	ノートン 360:モバイルセキュリティ、ウイルス対策&VPNGen Digital Inc. How to cancel →	iOS	4.3	433
5	my 楽天モバイルRakuten Mobile, Inc. How to cancel →	iOS	2.4	420
6	My SoftBankSoftBank Corp. How to cancel →	iOS	0.0	409
7	My UQ mobileKDDI CORPORATION How to cancel →	iOS	0.0	376
8	SoundcoreAnker How to cancel →	Android	4.1	363
9	セブン-イレブンマルチコピーFUJIFILM Business Innovation Corp. How to cancel →	iOS	4.5	330
10	Google アプリGoogle How to cancel →	iOS	0.0	283
11	Cleanup：スマホストレージクリーナーDeep Flow Apps How to cancel →	Android	4.4	273
12	QRコード・バーコードリーダーStart Up How to cancel →	Android	3.2	269
13	Google Chrome - ウェブブラウザGoogle How to cancel →	iOS	4.4	258
14	Pokémon HOMEThe Pokémon Company How to cancel →	Android	3.7	258
15	ノジマアプリNojima Corporation How to cancel →	iOS	3.3	255
16	My docomo - 料金・通信量の確認株式会社NTTドコモ How to cancel →	iOS	0.0	238
17	PDF Reader: Easy Fast Vieweryaohuo How to cancel →	Android	4.2	234
18	QRスキャナーP & L Studio How to cancel →	Android	3.6	225
19	Samsung Smart Switch MobileSamsung Electronics Co., Ltd. How to cancel →	Android	3.9	211
20	Photo Recovery PlusNullbyte Labs How to cancel →	Android	3.3	181
21	Google 認証システムGoogle LLC How to cancel →	Android	3.9	167
22	Anti-virus Dr.Web LightDr.Web How to cancel →	Android	3.3	165
23	Brave adblockで広告をブロックするブラウザBrave Software How to cancel →	iOS	0.0	164
24	車検証閲覧アプリMLIT, Logistics and Road Transport Bureau Registration and Information Division How to cancel →	iOS	0.0	164
25	Google AuthenticatorGoogle How to cancel →	iOS	0.0	161
26	ノートン VPN – 高速で安全 Wi-Fi プロキシNortonMobile How to cancel →	Android	3.9	153
27	QRコード & バーコードスキャナーアプリMinimodev Technologies LTD How to cancel →	iOS	3.8	148
28	Smart PDF Reader & PDF ViewerOlasmg Digital How to cancel →	Android	4.4	147
29	Simeji AI音声入力日本語キーボード｜顔文字・絵文字Baidu Japan Inc. How to cancel →	iOS	4.5	145
30	PDF ビューア＆スキャナーEmily Yu How to cancel →	Android	3.9	143
31	写真の復元とファイルの復元Technology Hub Pro How to cancel →	Android	4.1	140
32	Aura BrowserJerome Easy Tools How to cancel →	Android	3.9	137
33	ノートン 360: モバイルセキュリティ&ウイルス除去対策NortonMobile How to cancel →	Android	4.6	136
34	QuickDoc: PDF Reader ToolsDev Globeg How to cancel →	Android	4.4	131
35	Google 翻訳Google LLC How to cancel →	Android	4.3	130
36	QRコード＆バーコードスキャナーExomobi Studio How to cancel →	Android	3.3	128
37	PureClean AI刘伟Well How to cancel →	Android	3.9	124
38	かんたんnetprint－セブン‐イレブンでかんたん印刷FUJIFILM Business Innovation Corp. How to cancel →	iOS	0.0	124
39	My TOYOTA+TOYOTA MOTOR CORP. How to cancel →	iOS	4.7	123
40	VPN cat - 高速安全無制限VPNSecure Network How to cancel →	iOS	4.5	120
41	All BrowserNullbyte Labs How to cancel →	Android	4.1	120
42	Simeji(しめじ)日本語キーボード·顔文字·絵文字バイドゥ株式会社 How to cancel →	Android	4.1	111
43	ファイル & 写真復元SolaraSoft How to cancel →	Android	3.9	110
44	デジタル認証アプリデジタル庁 How to cancel →	iOS	0.0	97
45	PDFリーダー - エディター＆ビューアEternal Mobile Labs How to cancel →	Android	4.6	97
46	Genspark（ジェンスパーク）AIワークスペースGenspark How to cancel →	Android	4.7	95
47	Phone Cleaner ProMetanoz How to cancel →	Android	4.3	95
48	無限時計 - 見やすい時計Koichiro Kamada How to cancel →	iOS	4.6	95
49	クリーナーゴールZheng Hongyi How to cancel →	Android	4.6	89
50	QRコード読み取りアプリ & バーコードリーダーQR Code Scanner. How to cancel →	Android	4.8	84

Worst Utilities Apps in Other Countries

See how the same utilities apps fare across other markets.

Worst Apps in Japan by Other Categories

Auto & Vehicles Beauty Books Business Developer Tools Education Entertainment Finance Food & Drink Games Graphics & Design Health & Fitness

See all worst apps in Japan →

Why Utilities Apps Fail in Japan

Utilities apps that earn the most complaints in Japan usually share the same failure patterns: missing local payment methods, broken integrations with country-specific services, slow servers, missing language support, or feature parity gaps with the global version. Reviews concentrate around the moment a utilities feature works in the US or UK but breaks in Japan.

This page ranks utilities apps in Japan by total number of negative reviews (1-3 stars). Whether you are researching competitors before launching a utilities app in Japan, benchmarking your own app against local pain points, or just curious which utilities apps users in Japan complain about most: this data shows you what is actually happening on the ground, not what marketing pages claim.

See best utilities apps in Japan →|Worst Utilities (global) →|All worst apps in Japan →|Full Leaderboard →