Top Trending Tools Apps in Japan

Document Reader - PDF Create 📄 All Document Reader – PDF Reader & PDF Tools for Android
All Document Reader is a easy-to-use PDF reader and document app that helps you view, read, convert, and manage PDF documents and office files on your Android device — anytime, anywhere.
Whether you need a free PDF reader, a PDF converter, or a simple document reader for work, study, or business, this app brings all essential PDF tools into one place to boost your productivity.
🔍 Read & View Documents (Multi-format Support)
Easily open and read PDF files and other document formats with a smooth and fast viewing experience.

Read Word, Excel, PPT and PDF files

Supports multi-format document reading

Perfect as a daily file reader, document viewer, or all-in-one documents app.

🔄 Convert Files – PDF Converter & PDF Maker
Convert documents and images quickly with this free PDF maker and file converter.

Convert photo to PDF, png to PDF, jpg to PDF

Create PDFs from photos with photo PDF converter

Scan paper documents with camera (cam scanner)

A great PDF page maker and picture to PDF free solution for mobile users.
✂️Organize & Protect PDF Documents
Manage your PDF files efficiently with essential PDF business tools.
Merge and split PDF files

Lock and unlock PDF documents with password

Organize files by recent and favorites

Print documents anytime with mobile print support

Works as a lightweight PDF expert free alternative for everyday document tasks.
📁 Simple File Management & Productivity
Auto scan and list all local PDF documents

Manage PDFs, photos, and documents in one file app

Designed for study, office work, and productivity on the go

All features are designed to work smoothly on your device, making it a well PDF app for daily use.
✅ Why Choose All Document Reader?
Free PDF reader and PDF tools

Clean, user-friendly interface

Suitable for students, professionals, and PDF business users

Download All Document Reader today and enjoy a simple yet practical PDF reader, PDF maker, and document reader — all in one app. Document Reader - PDF Create , a leading app in the Tools Apps category, boasts a robust user base with a total of 305M installs. It sees impressive engagement with 300M monthly installs and 2M daily installs, reflecting its popularity and usability. The app generates significant monthly revenue, indicative of its effective monetization strategies and user satisfaction. The app supports in-app purchases, allowing users to enhance their experience with additional features and content. Document Reader - PDF Create was first released November 28, 2025, and has been continually updated, with the latest update rolled out just March 19, 2026. This commitment to regular updates ensures that users always have access to the latest features and improvements. The app and is currently on version 1.0.5. Document Reader - PDF Create maintains a strong presence in the market, supported by numerous rating votes that attest to its reliability and effectiveness in helping users achieve their Top charts movers_shakers play goals.

Simple Cleaner Tool Key Features

📲 Check recently running apps
View and understand the apps that have recently been running on your device.

🔋 Review device power stats
See detailed battery information, including health, temperature, capacity, and voltage.

🧹 Remove temporary data
Clear cache, log files, and other temporary files in just a few taps.

📂 Find and delete large items
Identify large files and delete unnecessary ones.

🖼️ Reduce photo file size
Compress images to reduce file size while maintaining image quality.

We offer a range of useful tools to help you view device information and organize your device data. 🛠️ Simple Cleaner Tool , a leading app in the Tools Apps category, boasts a robust user base with a total of 5M installs. It sees impressive engagement 160K daily installs, reflecting its popularity and usability. The app generates significant monthly revenue, indicative of its effective monetization strategies and user satisfaction. The app supports in-app purchases, allowing users to enhance their experience with additional features and content. Simple Cleaner Tool was first released February 26, 2026, and has been continually updated, with the latest update rolled out just March 26, 2026. This commitment to regular updates ensures that users always have access to the latest features and improvements. The app and is currently on version 1.0.5. With 1 reviews, Simple Cleaner Tool maintains a strong presence in the market, supported by numerous rating votes that attest to its reliability and effectiveness in helping users achieve their Top charts movers_shakers play goals.

Nimbly Clean Scan for junk and duplicate files to free up storage space, manage media and APK files with a single click, and track storage usage in real time. Its clean and intuitive interface transforms tedious device maintenance into a quick and easy task.

The core functionalities of the application, including junk file scanning and large file detection, require the "All files access" permission to operate effectively. Nimbly Clean , a leading app in the Tools Apps category, boasts a robust user base with a total of 1B installs. It sees impressive engagement with 600M monthly installs and 16M daily installs, reflecting its popularity and usability. The app generates significant monthly revenue, indicative of its effective monetization strategies and user satisfaction. The app supports in-app purchases, allowing users to enhance their experience with additional features and content. Nimbly Clean was first released December 11, 2025, and has been continually updated, with the latest update rolled out just January 17, 2026. This commitment to regular updates ensures that users always have access to the latest features and improvements. The app and is currently on version 2.0.0. Nimbly Clean maintains a strong presence in the market, supported by numerous rating votes that attest to its reliability and effectiveness in helping users achieve their Top charts movers_shakers play goals.

Flow PDF - reader & view Flow PDF – Your Smart PDF & Office Document Companion

✨ Key Features:
📖 All-in-One Viewer – Open PDF, Word, Excel, and PowerPoint files in one place
📸 Scan to PDF – Turn photos or camera scans into PDFs instantly
✂️ Split PDF – Extract pages from any document with ease
📌 Merge PDF – Combine multiple files quickly
🖨️ Print Documents – Print PDFs directly from your phone
🔒 Secure PDF – Lock or unlock files to protect important documents

Perfect for work, study, or daily use—manage both business and personal documents effortlessly. Flow PDF - reader & view , a leading app in the Tools Apps category, boasts a robust user base with a total of 253M installs. It sees impressive engagement with 100M monthly installs and 1M daily installs, reflecting its popularity and usability. The app generates significant monthly revenue, indicative of its effective monetization strategies and user satisfaction. The app supports in-app purchases, allowing users to enhance their experience with additional features and content. Flow PDF - reader & view was first released September 30, 2025, and has been continually updated, with the latest update rolled out just March 29, 2026. This commitment to regular updates ensures that users always have access to the latest features and improvements. The app and is currently on version 1.0.6. With 2 reviews, Flow PDF - reader & view maintains a strong presence in the market, supported by numerous rating votes that attest to its reliability and effectiveness in helping users achieve their Top charts movers_shakers play goals.

Junk Cleaning Kits A practical tool to help clear unnecessary files from your phone and free up storage space.

• Scan for Junk: Quickly identify temporary files, app cache, and residual data.
• Safe Cleanup: Remove selected junk files with a simple confirmation.
• Storage Overview: See what’s taking up space on your device at a glance.

Junk Cleaning Kits is a utility for regular maintenance. Junk Cleaning Kits , a leading app in the Tools Apps category, boasts a robust user base with a total of 169M installs. It sees impressive engagement with 40M monthly installs and 2M daily installs, reflecting its popularity and usability. The app generates significant monthly revenue, indicative of its effective monetization strategies and user satisfaction. The app supports in-app purchases, allowing users to enhance their experience with additional features and content. Junk Cleaning Kits was first released January 20, 2026, and has been continually updated, with the latest update rolled out just February 11, 2026. This commitment to regular updates ensures that users always have access to the latest features and improvements. The app and is currently on version 1.0.2. With 14 reviews, Junk Cleaning Kits maintains a strong presence in the market, supported by numerous rating votes that attest to its reliability and effectiveness in helping users achieve their Top charts movers_shakers play goals.

PhotoRevive Download **PhotoRevive** to easily retrieve photos and lost files. It’s your all-in-one solution for recovering deleted photos, videos, and important documents.

Accidentally deleted precious memories or critical work files?
Don’t worry! Whether it’s treasured family photos, important school projects, or business documents, **PhotoRevive ** helps you get them back in seconds with professional-grade accuracy.

## Key Features

📷 **Photo Recovery – Bring Back Deleted Memories**
Restore deleted or lost high-resolution photos. Whether you’re a photographer, traveler, or someone who cherishes memories, this app helps you recover family portraits, travel shots, and important images with ease.

🎥 **Recover All Videos**
Restore deleted videos in their original quality. Perfect for content creators, vloggers, event organizers, or anyone who wants to get personal video clips back.

📂 **Multi-File Recovery – All-in-One Retrieval**
Easily recover documents, music, and more. Supports restoration of multiple file formats.

## Why Choose PhotoRevive ?

✅ User-friendly interface, easy to use
✅ Fast file recovery
✅ Privacy protection and reliable security
✅ High-quality restoration
✅ Supports many formats: JPG, PNG, MP4, PDF, DOCX, and more PhotoRevive , a leading app in the Tools Apps category, boasts a robust user base with a total of 10M installs. It sees impressive engagement 81K daily installs, reflecting its popularity and usability. The app generates significant monthly revenue, indicative of its effective monetization strategies and user satisfaction. The app supports in-app purchases, allowing users to enhance their experience with additional features and content. PhotoRevive was first released November 21, 2025, and has been continually updated, with the latest update rolled out just March 24, 2026. This commitment to regular updates ensures that users always have access to the latest features and improvements. The app and is currently on version 1.5.0. PhotoRevive maintains a strong presence in the market, supported by numerous rating votes that attest to its reliability and effectiveness in helping users achieve their Top charts movers_shakers play goals.

File kits Console File Kits Console provides a set of practical file utilities for Android devices.

What we can do:
- Easy File Management
- Clean Junk Files
- Clean Duplicate Photos
- Protect Privacy With Safebox File kits Console , a leading app in the Tools Apps category, boasts a robust user base with a total of 12M installs. It sees impressive engagement 366K daily installs, reflecting its popularity and usability. The app generates significant monthly revenue, indicative of its effective monetization strategies and user satisfaction. The app supports in-app purchases, allowing users to enhance their experience with additional features and content. File kits Console was first released February 26, 2026, and has been continually updated, with the latest update rolled out just March 12, 2026. This commitment to regular updates ensures that users always have access to the latest features and improvements. The app and is currently on version 1.0.4. With 1 reviews, File kits Console maintains a strong presence in the market, supported by numerous rating votes that attest to its reliability and effectiveness in helping users achieve their Top charts movers_shakers play goals.

Document Editor - PDF Scanner Unlock the ultimate convenience in document handling with Document Editor - PDF Scanner, your top choice! This application brings together multi-format document reading, PDF editing, PDF scanning, and automatic organization of PDFs, Excel, PPT, and Word files. Enjoy a seamless file opening experience, with reading and management all within the app.

✨ Powerful PDF Viewer
👏 Comfortable reading experience: Easily switch between page-by-page and continuous scroll modes & toggle between horizontal and vertical viewing & jump to a specific page by entering its number & zoom in and out of the text
🎉 PDF Split & Merge
✨ PDF Editing
👏 File search & File lock
🎉 Directly connect to a printer from your mobile device

Effortlessly scan documents to PDF
Document Editor - PDF Scanner allows you to digitize important documents for backup with just one click, making organization and retrieval a breeze:
📝 Paper invoices
📝 Appliance manuals
📝 Cooking recipes
📝 Business cards
Simply use your mobile device to scan and save documents as PDFs. When you need these files, there's no need to rummage around—just open your phone and they'll be right there.

✨ Easy image-to-PDF conversion
Quickly create PDFs from multiple images, then edit and customize their order to suit your needs.

✨ Comprehensive file management
Effortlessly manage various file formats.
Files are automatically sorted by format, clearly visible, and easy to manage.

By using this application, you agree to our Privacy Policy and Terms of Service:
Privacy Policy: https://document-editor.com/1/privacy
Terms of Service: https://document-editor.com/1/terms
Our app offers subscription options, with clear pricing details displayed within the app.
Subscription Information: https://document-editor.com/1/subscription

Download this exceptional productivity app now! It provides robust support for your work and study needs, combining a document viewer, e-book reader, and file manager into one comprehensive package.

We're constantly working to enhance the app and improve user experience. If you have any suggestions, please feel free to contact us at feedback@document-editor.com.

Important Notification:
To help you efficiently manage document files on your device, Document Editor - PDF Scanner requires access permissions to all files: MANAGE_EXTERNAL_STORAGE. This permission is solely used to enable the app's features and functionalities. We do not use your files for any other purposes. The app processes and converts files locally on your device to ensure the privacy and security of your data.

For a better user experience, we utilize the FOREGROUND_SERVICE_SPECIAL_USE permission. This permission helps prevent interruptions during processing due to large files and ensures smooth task execution. We promise to strictly adhere to our privacy policy and ensure the reasonable use of this permission. It is used solely for the functions described above and will not be used for any non-essential purposes. We also assure you that we do not collect or use user data unrelated to file processing. Thank you for your support. Document Editor - PDF Scanner , a leading app in the Tools Apps category, boasts a robust user base with a total of 2B installs. It sees impressive engagement with 100M monthly installs and 2M daily installs, reflecting its popularity and usability. The app generates significant monthly revenue, indicative of its effective monetization strategies and user satisfaction. The app supports in-app purchases, allowing users to enhance their experience with additional features and content. Document Editor - PDF Scanner was first released August 31, 2023, and has been continually updated, with the latest update rolled out just March 20, 2026. This commitment to regular updates ensures that users always have access to the latest features and improvements. The app and is currently on version 2.1.0. With 118 reviews, Document Editor - PDF Scanner maintains a strong presence in the market, supported by numerous rating votes that attest to its reliability and effectiveness in helping users achieve their Top charts movers_shakers play goals.

Device File Index Take full control of your mobile storage with Device File Index.

Device File Index is a powerful and intuitive file management tool designed to help you organize your digital life. Whether you are looking to declutter your phone or find specific documents quickly, our app provides a comprehensive overview of your device's storage.

Key Features:
Comprehensive File Overview: Get an instant breakdown of your storage. View images, videos, audio, documents, and APKs in one centralized hub.

Intelligent Junk Detection: Identify and remove unnecessary data, cache, and residual files to reclaim valuable space.

Deep Storage Analysis: Visualize how your storage is being used with detailed category breakdowns, helping you understand what's taking up space.

Duplicate & Similar Photo Cleaner: Save space by identifying near-identical images and keeping only the "Optimal" version.

Large File Manager: Easily locate and manage oversized files that are crowding your memory.

App Insights: Identify rarely used apps to help you decide what to keep and what to uninstall.

Useless File Removal: Quickly scan specific directories to eliminate empty folders or redundant system logs. Device File Index , a leading app in the Tools Apps category, boasts a robust user base with a total of 17M installs. It sees impressive engagement 486K daily installs, reflecting its popularity and usability. The app generates significant monthly revenue, indicative of its effective monetization strategies and user satisfaction. The app supports in-app purchases, allowing users to enhance their experience with additional features and content. Device File Index was first released February 25, 2026, and has been continually updated, with the latest update rolled out just March 11, 2026. This commitment to regular updates ensures that users always have access to the latest features and improvements. The app and is currently on version 1.0.2. With 3 reviews, Device File Index maintains a strong presence in the market, supported by numerous rating votes that attest to its reliability and effectiveness in helping users achieve their Top charts movers_shakers play goals.

Cleaner Toolkit Low phone storage? Cleaner Toolkit is your all-in-one phone cleaning solution!

【Core Functions】
• Junk Cleaning: Deep scan to quickly clear cache and junk files, freeing up storage space.

• Similar Photo Cleaning: Intelligently identifies duplicate photos and cleans them with one click, saving significant space.

• Large File Management: Quickly find and manage large files such as videos and documents.

• Network Traffic: Real-time monitoring of application network traffic to prevent unauthorized usage and save on data charges.

• App Management: Batch uninstall infrequently used apps to easily manage phone storage. Cleaner Toolkit , a leading app in the Tools Apps category, boasts a robust user base with a total of 62M installs. It sees impressive engagement with 40M monthly installs and 465K daily installs, reflecting its popularity and usability. The app generates significant monthly revenue, indicative of its effective monetization strategies and user satisfaction. The app supports in-app purchases, allowing users to enhance their experience with additional features and content. Cleaner Toolkit was first released November 18, 2025, and has been continually updated, with the latest update rolled out just April 03, 2026. This commitment to regular updates ensures that users always have access to the latest features and improvements. The app and is currently on version 1.1.1. With 4 reviews, Cleaner Toolkit maintains a strong presence in the market, supported by numerous rating votes that attest to its reliability and effectiveness in helping users achieve their Top charts movers_shakers play goals.