If you are looking for the Best Android Optimizer 2021 to download for free, look no further.
Our expert panel of reviewers has tested dozens of apps and we have compiled a list of the 7 Best Android Optimizer 2021 that passed our tests.
- 7 Best Android Optimizer 2021
- 1. Smart Phone Cleaner – Speed Booster & Optimizer
- 2. “All-In-One Toolbox: Cleaner, Speed Booster”
- 3. Mobile Security – Lookout
- 4. “Safe Security – Antivirus, Booster, Phone Cleaner”
- 5. “CCleaner: Cache Cleaner, Phone Booster, Optimizer”
- 6. “AVG Cleaner – Junk Cleaner, Memory & RAM Booster”
- 7. Droid Optimizer
Check out our list of the 7 Best Android Optimizer 2021, tried and tested by our expert reviewers.
7 Best Android Optimizer 2021
1. Smart Phone Cleaner – Speed Booster & Optimizer
What Smart Phone Cleaner offers?:
✔ Free and Easy to use android Phone cleaner & Optimizer
✔ Junk Files Cleaner : App Cache and Junk Cleaner
✔ Duplicate Files Cleaner : Delete Duplicate Files and recover phone storage space.
✔ Malware Protection : Antimalware protects your phone device against Malware attacks and infections
✔ Private Browser : It assures that it does not save browsing history, cookies & cache or any other information filled online
✔ App Lock : Fast App Locker with Pattern & Passcode to lock any application.
✔ CPU Cooler : Cooling CPU temperature to speedup phone performance.
✔ File Explorer : File Manager helps you organize and manage all your files in categories in one place.
✔ Hibernate Apps : where in apps that lead to battery drainage are hibernated and puts your device in a low power state.
✔ Game Speedup : It frees up RAM to give your phone a significant speed boost. Also, it closes background running processes to enhance gaming performance.
✔ App Manager : uninstall and disable apps to recover space and speed up your Android Phone.
✔ Battery Saver : Smartly analyze your phone’s battery usage and terminates apps that cause battery drainage.
✔ One tap RAM booster, cache & temp files cleaner
With Smart Phone Cleaner, optimizing RAM is made extremely easy. Simply hit ‘TAP TO BOOST’ and all your problems are solved. It releases cache out of your device and optimizes its performance.
Junk File Cleaner
With continuous use, an Android device gets cluttered with hundreds of junk files. Finding and cleaning all this junk isn’t easy, but Smart Phone Cleaner lets you clean and declutter your device to free up space and improve your device’s performance.
Smart Phone Cleaner lets you analyze your device’s battery usage and terminates apps that cause battery drainage. Battery drainage may be due to apps that are no longer in use, or the ones that run in background. It allows you to shut such apps and save battery power. Moreover, it also shows the device temperature.
Game Speed Up
Smart Phone Cleaner not only cleans junk on your device but also lets you make the most of it. You can enhance your gaming experience with its Game Speed Up feature.
App Manager by Smart Phone Cleaner locates and displays space-hogging apps that are no longer in use. You can rely on this app to uninstall and disable apps to recover space and speed up your Android device. Moreover, it allows you to Archive files.
Make the best use of File Explorer to manage files stored on your device efficiently. This is an amazing feature offered by Smart Phone Cleaner to categorize files and folders. It further lets you share, remove and take backup of your files.
Duplicate Files Remover
Recover maximum storage with Smart Phone Cleaner’s duplicate files cleaning module. It lets you quickly scan your device for duplicates based on their file name, content and file type. Once the duplicates are detected, select them quickly with Auto-Mark and remove them to recover significant storage space.
Smart Phone Cleaner also protects your device against Malware attacks and infections. With the integration of the Anti-Malware app, you can easily scan for malware and prevent data corruption and infection.
Hibernate Apps is one of the important modules by Smart Phone Cleaner wherein apps that lead to battery drainage are hibernated and puts your device in a low power state. Usually, the process hibernates apps that are either unused or have been inactive for a long time. Enable accessibility services just for the informational purpose.
Smart Phone Cleaner lets you view and manage all your WhatsApp media at a single place. It will let you free up space taken over by WhatsApp media and improve your device performance.”
2. “All-In-One Toolbox: Cleaner, Speed Booster”
All-In-One Toolbox gives a collection of tools such as a junk cleaner, history eraser, speed booster, memory optimizer, battery optimizer, CPU cooler, app manager, file manager, mini launcher just to name a few to maintain good performance for your Android.
It is also compatible with a lot of plug-ins like app lock, game booster, volume settings and so much more.
How does All-In-One Toolbox improve device performance?
►Show Phone Storage Status
Just open app, you can see status of your phone. How much RAM run, how much ROM occupied and what is the CPU temperature. Keeping track of your RAM and internal storage space make you understand better of your phone.
► Clean Junk – Only One Click
Click “Clean”, it will scan cache, temp files, app leftovers, thumb images, empty folder and process. Almost all kinds of junk files will be scan out. After scanning, clean those file searched and your phone will have extra space.
► Boost Speed- Only One Touch
Touch “Boost”, it will scan which process can be exited and will release about 400MB memory every time.
► Cool CPU- Only One Tap
Tap “CPU Cooler”, it will tell you CPU temperature and if it is normal. Automatically choose the apps you are running and you can terminate them to cool down your Android.
► Speed up Boot Time
Click “Boot Speedup”, it will search which apps your Android will run when booting. User Apps and System Apps are in different columns. Disable those unnecessary apps and make your phone boot up quicker.
Allow you to explore files like images, music, video, documents, apk packages, downloaded files that stored on external SD card.
All offers you a formidable app manager coupled with apps like App2SD, backup & restore, batch uninstaller, etc.
► System Info
Check device hardware info in one place
A floating button quickly switches AIO tools, recent apps and system settings!
► Add Plugins to Customize your Android
● Find Direction Plugin- Compass helps you to find the right direction.
● Perform Task Automatically- Set Boost and Cache Clean to work automatically.
● Lock App Plugin -Protect your personal stuff from friends and guard your privacy.
● Boost Game Plugin-Boost games at its launch to give you more fun and speed.
● Manage Notification Plugin-Hide unimportant notifications from Notification bar.
● Detect Ad Plugin- Detect ad plugins each app contains and show all the possible info it might get.
English, Deutsch, Español, Française, 日本語, 한국어, हिंदी, Magyar, Ελληνικά, Nederlands, Polski, Português, Românâ, Pусский, Türkçe, Bahasa Indonesia, 简体中文, 中文（香港）, 中文（台灣）, српски, Italiano, فارسی ,עיברית, Shqiptar, Slovenská, hrvatski, ไทย, tiếng Việt, български, Azərbaycan, Dansk, Norsk, Svenska, العربية,
Drop us an email when you need any tech help or have feedback: email@example.com
Download All-In-One Toolbox now and get a virtual all-around-tool for your Android. Thanks!”
3. Mobile Security – Lookout
“Mobile Security & Antivirus by Lookout provides premium mobile security & identity protection for all of your Android devices. Protect your device from viruses, malware and spyware, and rest assured you’re in safe hands with our ID theft protection services.
Secure your device and your life, with Lookout. Lookout provides instant security from viruses, threats and personal data theft.
Lookout is the only all-in-one mobile security & antivirus app that protects your mobile device, your data & your identity. Stay ahead of any viruses, malware and spyware with our antivirus features, phishing attacks or other mobile theft breach with the Mobile Security & Antivirus app by Lookout.
Lookout Basic Includes:
* Mobile Security & Antivirus
* Virus Scanner: Continuous, over-the-air antivirus protection from viruses, malware, spyware, adware, & phishing. Just scan your device and we’ll take care of the rest!
* System Advisor: Checks your mobile device for root detections to make sure the operating system is working properly
* Lookout makes it easy to identify, clean & remove viruses from your Android device.
* Locate & Alert: Map the location of your device & make it sound an alarm – even on silent!
* Signal Flare: Automatically save your device’s location when the battery is low
Lookout Antivirus & Security Premium
* Includes all the functionality of Lookout Basic, plus 360 total mobile security & antivirus features to protect your mobile device, data & privacy.
* Safe Wifi: Protects your mobile data from phishing & other Wi-Fi attacks. Get peace of mind as you connect to Wi-Fi networks on the go, knowing that your mobile connection is safe & secure.
* Breach Report: Get timely alerts whenever a company, app or service you use has a data breach along with how best to secure your data
*Theft Alerts: Get an email with a photo & location whenever suspicious behavior is detected that could mean your identity has been stolen
* Safe Browsing: Scan every URL link you visit to help detect online threats with antivirus technology & alert you of sites that can infect your device & steal your personal information. Mobile Security, Antivirus Protection & virus scanner by Lookout improves your online security.
* Privacy Advisor: See what personal information can be accessed by your apps
* Lock & Wipe: Remotely lock your device, post a custom message & erase your data
Lookout Premium Plus (US only) comes with all of the Premium functionality, plus identity theft protection.”
4. “Safe Security – Antivirus, Booster, Phone Cleaner”
“Security Protection for Android Phone with Speed Booster, Junk Cleaner, Anti Spyware and Virus Remover
Trusted by 200 million users, Safe Security is the all-in-one power cleaner, smart speed booster and antivirus app that optimizes your background apps, memory storage, junk files & battery power, keeping your device safe from virus.
Download the super speed cleaner & security app that’s intuitively designed to protect your mobile in just ONE tap.
Why Safe Security is a MUST-HAVE app?
★ Effective Speed Booster & Smart Cache Cleaner-Lacking space for new apps and photos? Just clean app caches and junk files, boost your phone with ONE click!
★ Smart Battery Saver- Battery draining quicker than ever? Kill redundant apps that drain your battery!
★ Virus Remover for Android-Worried about viruses or phishing? Safe Security’s antivirus solution makes sure your device is free from malware, vulnerabilities, adware and Trojans!
Highlights of SafeSecurity
►Security & Antivirus
Scan installed apps, memory card content and new apps automatically. Safe Security’s latest protection technologies against viruses, adware, malware,etc.
►Junk File Cleaner
Mobile cleanup app. Delete all types of junk files (system cache, image cache, video cache and advertisement cache) to free up the storage space.
Optimize memory and speed up phone. Clean up memory (RAM) to boost speed and improve phone performance , also boost games to make them run smoothly.
►Multi-function lock screen
＊Automatically check phone status when locked to provide optimization suggestions
＊Handy tool can turn on the dial, camera, flashlight quickly and turn on or off WIFI, Bluetooth, etc.
＊Provide high-quality wallpaper to make your lock screen more beautiful
＊Manage notification to avoid missing any important info
＊Support to operate music player on the lock screen
＊Full charge notification alarm to avoid overcharging
＊Provide the feature to view local weather
►Call & SMS Filter
Help block unwanted/spam calls and text messages. Allow you to add anonymous numbers to blacklist from call log, message and contacts.
Allow you to hide useless and annoying notifications, and prevent excessive notifications from coming up at the same time.
Detect current WiFi connection to keep your phone safe from insecure public WiFi.
Privacy & App Lock – Prevent data on the device such as Facebook, Instagram, Snapchat, photo albums and other important & private documents from falling into the wrong hands.
Instantly snap a photo of anyone who breaking into your apps and record the date & time in App Lock for check.
►App Manager – Uninstall apps and move apps to SD cards.
Unlock screen quickly and easily with your fingerprint if your device has the fingerprint sensor, no fear of forgetting pattern or PIN code any more.
►Real time protection
Scan installed apps & local APK files and also monitor each installation process, provide payment & shopping security.
here to confirm current available version from google play store will not ask BIND_DEVICE_ADMIN permission！
Safe Security is available more than 35 languages: English, Português(Brasil), Português(Portugal), Español(España), Español(Latinoamérica), Pусский, हिन्दी, ไทย, Bahasa Indonesia, Türkçe, Tiếng Việt, Bahasa Melayu, 日本語, Deutsch, Français, 한국어, Italiano, Čeština, Nederlands, Svenska, Polski, Suomi, Română, Ελληνικά, Magyar, etc.
► Read in app permissions and usage here: ► http://www.safesecurityapps.com/en-us/about/permission
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5. “CCleaner: Cache Cleaner, Phone Booster, Optimizer”
Clean, optimize and boost the performance of your device with CCleaner for Android!
Brought to you from the makers of the world’s most popular PC and Mac cleaning software, CCleaner for Android is the ultimate Android optimizer. Quickly and easily remove junk, reclaim space, clean RAM, monitor your system and more, and truly master your device.
Optimize, Clean, and Master
• Speed up your phone and clean junk safely
• Clean application cache, download folders, browser history, clipboard content and more
Reclaim Storage Space
• Analyze and optimize valuable storage space
• Quickly and easily uninstall multiple unwanted applications
• Clear junk, such as obsolete and residual files
Speed up your Device
• Quickly stop running tasks and clean memory with Task Killer (RAM Booster)
• App Hibernation feature, to stop apps from running in the background until you manually open them
Boost Performance and Battery Life
• Disable functions you don’t use
• Clean your RAM
• Set profiles to auto-adjust battery usage for home, work, or car
Analyze Applications’ Impact
• Determine the impact of individual apps on your device
• Check which apps consume your data
• Find apps draining your battery
• Discover unused apps with App Manager
Optimize Photo Storage
• Find and remove similar, old, and poor quality (too bright, dark, or unfocused) photos
• Optimize file sizes with Low, Moderate, High, and Aggressive file compression, and move originals into cloud storage
• Delete photos from private chats
Monitor your System
• Check the usage of your CPU
• Master your RAM and internal storage space
• Check out your battery levels and temperature
Easy to Use
• Optimize your Android in just a few clicks
• Simple, intuitive user interface which is easy to navigate
• Fast, compact and efficient, with low RAM and CPU usage
• Choose the color theme you like most
Disclaimer: Certain battery profiles are automatically triggered based on your device’s location, which requires access to location data we’ll be using in the background. We’ll ask for permission to access this data before using it.”
6. “AVG Cleaner – Junk Cleaner, Memory & RAM Booster”
“With AVG Cleaner, your Android device will run faster and smoother, store more data, free up memory by cleaning junk, and stay charged for longer. AVG Cleaner is a smart device manager & optimization tool that has let nearly 50 million people worldwide master their devices.
AVG Cleaner top features:
✔ Uninstall Updates of Preinstalled Apps: replace preinstalled bloatware apps you don’t use with factory versions to save space
✔ Get more space – Remove junk files, uninstall apps, and delete bad or unwanted photos and videos
✔ Improve performance – Use Cleaner to clear cache, remove junk, and identify apps that are slowing down your device (RAM Cleaner & memory booster)
✔ Longer battery life – Cleaner’s battery saving feature helps improve your device’s battery life
✔ Hibernate apps – Suspend background apps to prolong battery life and save mobile data
✔ System info – Everything you need to know about your phone on one screen
✔ File manager – Smart File Manager & Storage Cleaner can analyze pictures, files, and apps to help you maximize your Android device’s performance
✔ Junk Cleaner – Clean out any useless junk from your device e.g. cache and app data
With AVG Cleaner, you will enjoy a longer battery life, avoid a lagging Android device, get rid of junk files, and automatically find bad quality or duplicate photos
AVG Cleaner – Memory (RAM) Booster and Junk Cleaner is a smart analysis application and clean up tool that gives you more storage space, better performance, and longer battery life
The booster, memory cleaner (RAM Cleaner), cache cleaner, battery saver, storage clean up, and app removal features are described below:
Cleaner: Advanced app remover & app manager:
► App analyzer: AVG Cleaner can identify apps that consume your battery, drain mobile data, or take up too much storage space, allowing you to clean them out more easily
► App remover: Easily remove apps that slow down your device
► RAM cleaner: Clean RAM and boost performance of your phone in a few taps
► Cache cleaner: Master your app cache, temporary files and leftover data
► Easily analyze apps based on storage, ram, battery, data consumption or usage
Cleaner: Photo Analyzer:
► Fast and easy photo gallery optimization
► Find bad quality or duplicate photos
► Easily clean your photo library
Cleaner: Battery Saver & Optimizer:
► App hibernation: Master hibernating apps to prolong battery life and keep your device running faster for longer
► Battery Profiles & Optimization: choose between “Low Battery”, “Home”, “Work”, and “Car” profiles, or set up your own to automatically adjust your battery usage how you want
Cleaner: 1-tap Analysis and Optimization
► Clean your device with a single tap of a button
► Perform device scan and analysis with just one tap
• Access Image Analysis results
• Optimize pictures to save space
• Sorted media by source folders
• All large video files in one view
• Draining apps analysis
• Usage statistics
• App size growth analysis
• Notification analysis
• Quick boost feature
Clean your phone to free up storage space, help it run smoother and faster, and boost its speed and performance. Eliminate junk, clear cache, boost memory, delete bad quality, similar or duplicate photos to make more storage space available for the apps, photos, and other stuff you want.
By installing this app, you agree that your use of it is governed by these terms: http://m.avg.com/terms
This app uses Accessibility permission to assist disabled and other users stop all background apps with just one tap
Disclaimer: Certain battery profiles are automatically triggered based on your device’s location, which requires access to location data we’ll be using in the background. We’ll ask for permission to access this data before using it.
Download AVG Cleaner, Booster & Battery Saver for Android™ phones NOW”
7. Droid Optimizer
Against data chaos
Installed apps, downloaded files, photos, music, videos – over time, your smartphone will become cluttered and slow. Declutter your phone and reclaim disk space with Ashampoo Droid Optimizer.
For your privacy
Browsing the Internet with your smartphone leaves various traces that can be used to violate your privacy. And let’s face it, do you really know all the time what device permissions your installed apps have? Get rid of Internet traces and expose potential spy apps with Ashampoo Droid Optimizer.
For prolonged battery life
The integrated Good Night scheduler can disable features such as WLAN or mobile connectivity automatically during customisable time periods. Put your smartphone to sleep at night and conserve precious battery power with Ashampoo Droid Optimizer.
With fun and motivation
Cleaning doesn’t have to be boring. Ashampoo Droid Optimizer comes with a ranking system that uses achievements and funny pictures to keep you motivated. You will clean your way from novice to master in no time.
Free and without ads
Ashampoo Droid Optimizer is and will remain free to use and without ads.
For all Android devices
Ashampoo Droid Optimizer works with Android 4.2 and higher devices which is practically every device.
Features at a glance
► Accelerate, clean and optimize
► Terminate foreground and background apps automatically
► Empty the system and application cache
► Clear your browsing history for better privacy
► Find and delete big files fast and easily
► Carry out cleaning tasks automatically
► Conserve energy and enhance your battery life
► Manage all installed apps
► Learn about your apps’ critical permissions and expose spy apps”