The top 20 popular Tools Apps for Android in Japan (with a recent update)

Check out the top Tools Apps which had a recent update in Google Play. We went through all Tools Apps for Android on Google Play in August 2026 and picked the best ones for you to download onto your Android phone. This Android app list is sorted by the popularity in Japan. Last updated on 2026-08-03.

Simeji Japanese keyboard+Emoji

バイドゥ株式会社

Simeji is a free Japanese input keyboard that has reached over 45M downloads! It comes with a skinnable keyboard, cute emoticons, emoji, and more! This is the most popular keyboard app in Japan! Try …

Free

4.1

10,000,000+ downloads

Tools

Image Search

Azrael

Unleash the power of visual discovery with Image Search! Find exactly the image you need, quickly and easily, using keywords or even an image from your own device. Refine your search with granular …

Data Usage Monitor

Lufesu Inc.

Stop hitting data caps. This app auto-measures mobile and Wi‑Fi traffic, graphs your daily/weekly/monthly usage, and warns you before throttling kicks in. Keep speeds steady and bills predictable. M…

SpeedChecker Speed Test

SpeedChecker

Our Speed Checker app easily, quickly and accurately measures your Wi-Fi network AND Mobile Internet Speed (download, upload and ping) up to 1 Gb/s. Your Wi-Fi connection could be slowing you down.…

Gauge Battery Widget & Monitor

Tomas Hubalek

Gauge Battery Widget gives you a real-time view of your battery level and health. A live battery tracker on your home screen, in your notification shade, and in detailed stats whenever you want them.…

Dr.Capsule: Antivirus Cleaner

ESTsecurity Corp.

🛡️ All-in-One Mobile Security with Dr.Capsule Dr.Capsule is a free antivirus app that brings real-time virus scanning, smishing protection, QR code safety check, and easy phone cleaning into a singl…

Free

4.0

10,000,000+ downloads

Tools

Gboard - the Google Keyboard

Google LLC

Gboard has everything you love about Google Keyboard—speed and reliability, Glide Typing, voice typing, Handwriting, and more Glide Typing — Type faster by sliding your finger from lette…

Free

4.5

10,000,000,000+ downloads

Tools

File Manager File Explorer

Maple Media

File Manager: The ultimate file explorer & app manager for file transfers, document management, and file storage ★ Custom Colors Personalize your experience and make organization a breeze with …

Free

3.8

10,000,000+ downloads

Tools

VPN Hotspot Shield: Proxy VPN

Anchorfree LLC

Independently rated the fastest VPN, Hotspot Shield VPN provides lightning-fast, private internet security. Hotspot Shield VPN provides a secure proxy connection through encrypted channels and preven…

Free

4.5

100,000,000+ downloads

Tools

Nova Launcher: Home Screen

Instabridge Sweden AB

Nova Launcher is a powerful, customizable, and versatile home screen replacement. Nova brings advanced features to enhance your home screens, but still remains a great, user-friendly choice for every…

Free

3.2

100,000,000+ downloads

Tools

Google Play services

Google LLC

Google Play services is used to update Google apps and apps from Google Play. This component provides core functionality like authentication to your Google services, synchronized contacts, access to …

Free

4.3

10,000,000,000+ downloads

Tools

Google Opinion Rewards

Google LLC

Answer quick surveys and earn Google Play credit with Google Opinion Rewards, an app created by the Google Surveys team. Getting started is easy. Download the app and answer basic questions about yo…

Free

4.5

100,000,000+ downloads

Tools

Keepass2Android Password Safe

Philipp Crocoll (Croco Apps)

Keepass2Android is an open source password manager application for Android. It is compatible with the popular KeePass 2.x Password Safe for Windows and aims at simple synchronization between devices.…

GuitarTuna: Tune & Play Guitar

Yousician Ltd.

GuitarTuna is your go-to guitar app, with over 100 million downloads and counting! Tune your guitar in seconds with the free guitar tuner, explore guitar chords & tabs for 20,000+ songs, and lear…

Free

4.5

100,000,000+ downloads

Tools

Google Authenticator

Google LLC

Google Authenticator adds an extra layer of security to your online accounts by adding a second step of verification when you sign in. This means that in addition to your password, you'll also need t…

Free

3.9

100,000,000+ downloads

Tools

Google Translate

Google LLC

• Text translation: Translate between 108 languages by typing • Tap to Translate: Copy text in any app and tap the Google Translate icon to translate (all languages) • Offline: Transla…

Free

4.3

1,000,000,000+ downloads

Tools

Instapaper

Instant Paper, Inc.

Instapaper is the simplest way to save and store articles for reading: offline, on-the-go, anytime, anywhere, perfectly formatted. Instapaper for Android provides a mobile and tablet-optimized Text…

X-plore File Manager

Lonely Cat Games

Application manual: www.lonelycatgames.com/docs/xplore Highlights: ● Dual-pane tree view ● Root, FTP, SMB1 / SMB2, Sqlite, Zip, Rar, 7zip, DLNA/UPnP explorer ● Disk Map - see which files consume mo…

Free

4.4

10,000,000+ downloads

Tools

Google’s Find Hub

Google LLC

For your devices and items • View your phone, tablet, headphones, and other accessories on a map–even if they’re offline. • Play a sound to locate your lost device if it&rsq…

Free

4.2

1,000,000,000+ downloads

Tools

Unit Converter

Smart Tools co.

Unit converter is the 6th set of Smart Tools® collection. This app includes Currency (money, Bitcoin) exchange rates. There are a lot of unit converter calculator apps on the market. However, mo…

Free

4.4

10,000,000+ downloads

Tools

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