Have you ever noticed several processes running in your device’s background when using your Android app? If yes, then take appropriate actions because these processes might prove hazardous to your smartphone’s health, and that’s why it is crucial to have apps proficient at keeping your system clean for smoother operation. 

What Is Android Cache Cleaner App?

Android cleaner apps wonderfully handle the hidden process and remove any unwanted app running in the background. These can be cache files piling up over time or junk from ads or image thumbnails taking up space. The Android cleaner apps find all the necessary files and help delete them. This boosts the device’s performance, gets rid of junk files, and enhances the battery life of Android devices. 

These cleaner apps also clean the memory space available on the device and thus help users save more space on Android phones. Devices with less memory often slow down during everyday operations. So these issues can be quickly taken care of by using the best cleaning apps for Android. 

How Does Android Cache Cleaner App Work?

This part seems too technical for me, so I’d appreciate we can discuss it. Accordingly, I will send this part in the mail.

Top Android Cache Cleaner App For Your Mobile

In this article, we discuss a few cleaning apps for Android phones that would help to free up some space in mobile devices. Take a look at the list of best clean apps for Android in 2021: 

1. Norton Clean, Junk Removal

If you are not particularly looking for an all-inclusive mobile security suite and instead want a more simple system cleaner, Norton is your answer. Even Norton’s Norton Clean Utility offers the same. Meanwhile, Norton Clean has a junk file cleaner working through the device’s cache, obsolete APK files, and more residual detritus. Norton Clean frees up the device’s storage space and memory by clearing out junk. Norton Clean also consists of an app manager to remove bloatware/unwanted apps. 

Important Features & Capabilities:

  • Cache Cleaner
  • Junk Remover
  • APK File Remover
  • Residual File Remover
  • Memory Optimizer
  • App Cleaner
  • App Manager
  • Free Mobile Security & Antivirus
System RequirementsAndroid OS 4.1 or later (This feature requires Android 5.1 or later)
In-App PurchaseNo
Downloads5 Million +
Published byNorton Labs

2. Droid Optimizer

One of the oldest and most lightweight cleaner apps for Android, Droid Optimizer might have a bit old-looking user interface, but it does an excellent Android cleaning job on most smartphones. If you prefer one, the app even features a dark theme. Droid has a dashboard detailing RAM and the left free space on the front. As it cleans the Android, users can terminate the background process with a single tap. Users can also set up the app on auto clean up. The users can even look at the sensitive permission apps, and the best part is that the Droid optimizer is ad-free. 

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Important Features & Capabilities:

  • Accelerate, clean, and optimize
  • Terminate foreground and background apps automatically
  • Empty the system and application cache
  • Dark theme
  • Find and delete junk files fast and easily
  • Carry out cleaning tasks automatically
  • Conserve energy and enhance your battery life
  • Disable wifi at preset times or each time you switch off the screen
  • Manage all installed apps
  • Learn about your apps’ critical permissions and expose spy apps
System Requirements Android OS 4.4 or later
In-App Purchase$0.99 – $10.99 per item
Downloads 1 Million +
Published byAshampoo

3. Files by Google

Easy-to-use phone cleaner app for Android users, Files by Google cleans junk files, and while cleaning, the app recommends users to delete old phones, memes, unused apps, and a lot more. This ad-free app is primarily a file manager offering a fast offline file-transfer service. Also, the app sends meaningful suggestions for files to delete before users run out of space. The app’s friendly interface also allows users to manage files & folders easily. 

Important Features & Capabilities:

  • Free Up More Space
  • Check Your Storage
  • Be In Control
  • Boost Phone Performance
  • Smart Recommendations
  • Find Files Faster
  • Easily Manage Files
  • Share Files Offline
  • Encrypted File Sharing
  • Backup Files To The Cloud
  • Backup Files To The Sd Card
  • Efficient, Effective Storage Management
  • Three-in-one Tool App “Free Up Space, Find Files Fast, Share Files”
System RequirementsAndroid OS 5 or later
In-App PurchaseNo
Downloads1 Billion
Published byGoogle LLC

4. CCleaner: Cache Cleaner, Phone Booster, Optimizer

Among the best PC maintenance tools for Windows machines, CCleaner is now doing phone cleanup as well with its Android app that’s great at cleaning the cruft out of the system. It’s a multipurpose cleaning tool to erase your apps’ cache, browser history, download folders, and other temporary files. The app also allows to selectively or bulk clean the call and SMS logs. 

CCleaner offers a fast cleaning experience to its users and has an app manager, RAM, meters for CPU, battery and storage, and temperature tools.

Important Features & Capabilities:

  • Optimize, Clean, and Master
  • Reclaim Storage Space
  • Speed up your Device
  • Boost Performance and Battery Life
  • Analyze Applications’ Impact
  • Optimize Photo Storage
  • Monitor your System
  • Easy to Use
System RequirementsVaries with device
In-App Purchase$1.39 – $13.39 per item
Downloads100 Million +
Published byPiriform

5. SD Maid – System Cleaning Tool

Considered the most underrated phone cleaner app, SD Maid is prominent for the in-depth cleaning of junk files on the Android system. The cleaner app is integrated with wide-ranging tools to manage extra files. Once the cache is clear, users can assign the app to erase duplicate files, files left by apps installed in the past, manage current apps, and more. SD Maid is also a fantastic device storage analyzer that gives users a detailed overview of the device’s storage. The widgets help to speed up the cleaning process. 

SD Maid has a clean and structured user interface and facilitates a schedule-based cleaning process; however, the Scheduler and other features are available only to SD Maid Pro users. 

Important Features & Capabilities:

• Browse your whole device and manipulate files through a full-fledged file explorer.
• Remove superfluous files from your system.
• Manage installed user and system apps.
• Detect files formerly belonging to uninstalled apps.
• Search for files by name, content, or date.
• Obtain a detailed overview of your device’s storage.
• Optimize databases.
• Do actual app cleaning and remove expendable files, which supersedes what others may call ‘cache cleaning’.
• Detect duplicate pictures, music, or documents, independent of name or location.
• Run tools automatically on a schedule or via widgets.

System RequirementsVaries with device
In-App Purchase$3.49 – $9.99 per item
Downloads10 Million +
Published bydarken

6. All-In-One Toolbox: Cleaner, Speed Booster

This versatile Android booster app, AIO Toolbox, offers a quick one-tap booster that cleans up background apps, cache, and memory. The cleaner app also consists of extras like a file manager, app manager, and a CPU cooler, reducing load by killing background apps. The app’s Easy Swipe function brings up a radial menu so users can quickly access utilities from the home screen or the other apps. Meanwhile, the AIO Toolbox app does suffer a bit in organizing, having tools split across a vertical feed & multiple tabs. Still, if you want a high-performing Android phone, this app is certainly worth a download. 

Important Features & Capabilities:

  • Show your phone Storage Status
  • Clean Junk Only in One Click
  • Boost Speed Only in One Touch
  • Cool CPU Only in One Tap
  • Helps in Speeding Boot-Time
  • File Manager
  • App Manager
  • Know Your System Info
  • Easy to Switch
  • Add Plugins to Customize your Android
  • Support Multi-Languages
  • Customer Support
System RequirementsAndroid OS 4.1 or later
In-App Purchase$0.99 – $24.99 per item
Downloads 10 Million +
Published byAIO Software Technology CO., Ltd.

7. AVG Cleaner

This app is known to clean junk from Android devices and acts as a file manager, a memory booster, and an intelligent photo analyzer removing duplicate and bad quality pictures. 

The Cleaner app analyses all the apps and finds the ones consuming the most battery, and asks the user to stop those apps or remove them, as per their usage. Also, within the apps, it kills background apps and improves the device’s performance. Besides, the cleaner apps also have battery saver options. 

AVG Cleaner’s best part is its analytics, which explains how the app drains battery and users’ usage analytics. Overall, it is an excellent phone cleaning app, and sometimes the ads can be a little annoying, but the app is worth it.

Important Features & Capabilities:

  • Uninstall Updates of Preinstalled Apps space
  • Get more space
  • Improve performance
  • Longer battery life
  • Hibernate apps
  • System info
  • File manager
  • Junk Cleaner
  • Advanced app remover & app manager
  • Photo Analyzer
  • Battery Saver & Optimizer
  • 1-tap Analysis and Optimization
System RequirementsVaries with device
In-App Purchase$0.99 – $89.99 per item
Downloads500 Million +
Published byAVG Mobile

8. Clean Master

Clean Master
Clean Master

This app, in particular, has more than 39 million votes with an average of 4.7 ratings, and this is proof enough of its effectiveness. Users looking to dispose of the unwanted data/files from their Android devices can significantly benefit from this app. The Cleaner apps also help manage the apps by taking care of bloatware and killing apps taking a toll on battery and processor. 

It gives users the options, like delete items one-by-one or all at once, which apps users want to run in the background, or whether they want to uninstall apps or move apps to an SD card. 

*It actually tracks users, collects data, and allegedly misuses it for advertisement fraud.

Important Features & Capabilities:

  • Junk Clean
  • Boost Your Device
  • Privacy Clean
  • Driver Booster
  • Intelligent Auto-clean
  • One-click to boost
  • Privacy Protection
  • File Shredder
System RequirementsVaries with device
In-App Purchase$29.90
Downloads 10 Million +
Published byChitta Mobile
Not Available On Play Store

9. Ace Cleaner

Ace Cleaner
Ace Cleaner

Ace Cleaner offers a new experience in phone optimization. It has incredible features like Ace Boost, Ace Clean, Battery Saver, CPU Cooler, and Quiet Notification that boost and maximize the phone performance. Ace Boost stops apps that start automatically, while there is an integrated DND mode to mute notifications. There is also an integrated app lock and a specialized cleaning tool for Facebook.

The app also has a duplicate phone cleaner intelligent enough to find similar photos in the device’s storage. It gives users the option to delete them or retain their favorites and clear the system space. Its intuitive UI and multiple features make it one of the best Android cleaner apps today.

Important Features & Capabilities:

  • Junk Clean
  • Boost Your Device
  • Privacy Clean
  • Driver Booster
  • Intelligent Auto-clean
  • One-click to boost
  • Privacy Protection
  • File Shredder
System RequirementsVaries with device
In-App PurchaseNo
Downloads50 Thousand
Published byGOMO Ace Team
Not Available On Play Store

10. Avast Cleanup & Boost

This app is quite similar to AVG Cleaner in terms of features as it boasts of a photo analyzer and allows to hibernate apps. However, it also has unique functionalities, like integrating cloud storage and safe cleaning. The app also allows optimizing image sizes under photo optimizer though that feature is only for paid users. Still, if you are looking for the best Android cleaner app, Avast is among the best.

Important Features & Capabilities:

  • Free up storage space
  • Detox your photo library
  • Tune up performance (RAM Cleaner)
  • Boost battery life
  • App Overview
  • Media Overview
  • Unlock premium features
  • Junk Cleaner: Remove Junk:
  • Device Manager — System Screen:
  • Device Manager — App Hibernation
  • The smart Safe Clean
  • The Cleaning Adviser
  •  Uninstall applications
  • Uninstall updates of preinstalled apps:
  • The Phone Cleaner
  • Master your storage space
System RequirementsVaries with device
In-App Purchase$0.99 – $59.99 per item
Downloads 500 Million +
Published byAvast Software


Yes, it is safe to delete cached data. It simply deletes junk data from the phone’s memory, freeing up valuable storage space. If you want to create your own cache cleaner mobile applications then contact the best app development company to turn your unique money-making app ideas into reality.

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CTO at Emizentech and a member of the Forbes technology council, Amit Samsukha, is acknowledged by the Indian tech world as an innovator and community builder. He has a well-established vocation with 12+ years of progressive experience in the technology industry. He directs all product initiatives, worldwide sales and marketing, and business enablement. He has spearheaded the journey in the e-commerce landscape for various businesses in India and the U.S.