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DU Speed Booster & Cleaner

Trusted by 230 million users, DU Speed Booster & Cleaner can clean cache and junk file, boost your phone to make phone faster by 60%, making it the best cache cleaner, memory booster, DU Speed Booster & Cleaner Total keeps your Android device safe, clean, and fast to be always just like ”New”.
DU Speed Booster & Cleaner is the only all-in-one speed booster, trash cleaner and antivirus app that optimizes your background apps, memory space and junk(cache) files. While keeping your device safe from virus and trojan, that can secure your private data with the AppLock function.

DU Speed Booster(Antivirus & Junk Cleaner)Highlights:► Phone Boost & Memory Boost
- The best phone speed boosterThe one-tap boost optimize your Android device and make it faster by 60% on home-screen. Clean up memory (RAM) and optimize phone speed by removing redundant background tasks. Stop auto-start Apps to increase boot speed and reduce memory usage.

► Junk File Cleaner
- Small yet powerful cleaner master, space saverFree up space and improve the performance by intelligently scan the junk files. Such as residual files, cache, temp files, obsolete apks and other big files.

► Apps Manager
- Scan and clean redundant APK filesSmart Task Manager transfer apps, games or files, move to SD card easily without scrolling from one screen to another one! App Manager for moving internal storage apps to external SD card will give you a lot of free space on your tablet or smart phone.

► AppLock
- Guarding your privacy is easier than everThe fastest & safest applock for android in the world; Security tool, easy to reset password.Prevent others from accessing your important private apps such as Facebook, Instagram, SMS, Gallery and so on.

► CPU Cooler
- Detect and clean apps that cause overheatingContinuous monitoring temperature changes, detects apps highly consuming CPU and starts a cooling progress, effectively reduce the phone temperature.By memory boost, it can cool down Android device as fast as possible.

► Game Booster
- The game experience will be betterAutomatically improve your game speeds by 30%+ when launching games.

► Network BoostThis useful tool can reset all your network interface connection by one click.And it has Vol Boost feature inside also by one click.

► Security & AntivirusScan installed apps, memory card content, and new apps automatically. DU Speed Booster & Antivirus latest protection technologies against viruses, adware, malware, trojan and more.

► Charging BoostIntroducing the Charging Screensaver, to booster the charging speed by 20%.

► Smart ChargeDisplay charge status in real time, accurately estimating remaining charge time.Display notifications on the screensaver to never miss friends' messages.

Find us online:Facebook: http://facebook.com/duappsTwitter: https://twitter.com/duapps

DU Speed Booster & Cleaner is right here to deal with all issues that slow down your Android device performance! DU speed Booster is here to help you to Clean and Speed Up android device, android system or in one touch optimize all files on your tablet or smartphone! It will help you master and optimize your background apps, memory space, junk (cache) files and battery power, as well as inspect apps permissions and secure your phone from viruses.

Help fight against deceptive adsDU Group is dedicated to providing a safer mobile experience for our global users, so we’re committed to fighting against misleading downloads. We’ve found that some ads/redirected pages might be malicious promotion from unknown channels. If you come across one of these ads, you can help us to take them down. Please send us the link and screenshots of these ads at [email protected]. We appreciate your kindly help.

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Reviews (22)

Suz. B. Jan 24, 2019     

it did boost my phone, I give it that. It did so by deleting every single download I had, all my gallery thumbnails so the pics I had became useless tiles, and a few other things it shouldn't touch. Gallery was instead full of ad pictures I'd never seen before. Completely messed up my phone, which is now working again, but still not right. I suggest anything else!

Goo. t. Feb 9, 2019     

it's a good app!! you'll really need to make an ad blocker and maybe an Antivirus if you do with it what you did with this app it will be awesone because I'm being played by Google sending me and adjectives takes over the entire phone and does it 20 * in a 30-minute time frame it's made this phone nearly useless because I have to turn the data off to be able to text back and forth with a person. thank you guys.

Min. R. Mar 11, 2019     

I did my research looking for a decent cleaner that does not have 1000 pop ups to get to your cell functions. So far this app has cleaned my cell properly. I haven't even had 1 annoying pop up advertisement to clear out to make calls, texts etc.. I'm happy with this app for now. Let's hope it continues being efficient.

Mar. C. Apr 16, 2019     

seems to work ok but I DO NOT LIKE the Quiet Notifications tool. It puts apps into the "quiet" section on it's own, even after you've moved it to the "allow" multiple times. I finally had to disable it because I was tired of it quieting apps I want to hear.

Ste. Dec 26, 2018     

Only problem i have with the app is the little on screen icon. It can get in the way sometimes and I'm unsure if there is a way to remove it. The app works though and is great for cleaning trash files and boosting your phone speed.

A. G. u. Oct 26, 2018     

I have this app for years although I've tried others with the same rating I tend to go back to this app for the fast boost on memory plus trash with my laptop iPhone cell phone and Mac. Has very very few ads and advertisements,and keeps everything running smoothly.

Wiz. B. Nov 8, 2018     

Used to be 5 stars, now bloated memory hog! 200MB+ Ram usage!Great graphics but too much silly animation wastes time and RAM to clean and boost! Too many annoying notifications. *Warning* This app heats up your cell a lot=bad! Lastly they broke away Auto features to make you install multiple apps..Good bye. *Make a Lite version please

Jad. P. Dec 3, 2018     

Please add a option to remove adds or add option to purchase pro for the removal of adds, I have been forced to stop using this app due to adds, I just want a clean app, no adds just pure application, other than the adds this app is amazing, I write a blog and review alot of apps and games and this is far by the best cleaner app I have used, it offers alot of functions that are extremely useful and they work... also I would like to see a section dedicated to the performance/boosting of games, a feature like that would go very well with what is already available

Ren. R. Dec 8, 2018     

This constantly crashed and stopped me from opening apps, receiving , and making phone calls! The adds popped up so much it became virtually impossible to unlock my phone. And it totally dtained my battery at least 20% every time l boosted or cleared my cache'. WHAT A NIGHTMARE!

Eli. H. Apr 19, 2019     

Had to install another app that actually cleans out my app cache since this one did NOT CLEAN OUT APP CACHE as advertised. I checked my apps before and after using it and it did NOT clean out app cache. This app does other cleaning of junk pretty well, however. Some cache cleaning apps only clean out cache on phones that are Older, or below 6.0 software updates, and this may be one of those. I've now installed a Cache Cleaner that actually Stated that it works on 4.5-7.0 software updated phones

Sun. K. A. Feb 3, 2019     

Awesome App, You want to Auto stop background Apps in a single click, Save your Battery from draining,Boosting your Ram from sluggish behavior, Clean your phone, Guys look no further here is the Saviour of your Smart Phone. Thank you Developers, For this free app. I have over 300 Apps, Never faced my phone hanging up, memory going low while playing games.

Pau. W. B. Jan 30, 2019     

very annoying ads! its effective when i used it but when it comes to ads, its very annoying! specially when ur doing something important on your phone, ads automatically appears on the screen. i cant keep with that so i uninstalled it but ads keep on popping up.. so ANNOYING!!!

A. G. u. Oct 25, 2018     

Have tried to download one of its associated apps to keep out unwanted stuff! Unfortunately it stops me answering calls, getting msgs etc. Its a nightmare! chocker with adds. Always end up wiping it & reverting back to just this. 😐

Amo. H. Dec 29, 2018     

This app is very awesome, it works very well when the phone is running slowly, the app helps and brings the normal speed. it has antivirus that helps me to keep my phone and document,apps, files safely.Actually, it has more for me I appreciate this app, and recomend it to everyone that owns a smartphone to use it and see how it is important. Thank you developers for this.

A. G. u. Dec 4, 2018     

2nd comment. I've used it for a few days now. Bit of a "flashy car" situation with the main face. Ads are needed for it to be a freebie. But it should be available for purchase to eliminate them. Services seem to to do as they describe.

ASM. F. f. Sep 18, 2018     

Addictive and helpful, It entertains me but sometimes it makes false data about some trash that's useless but there isn't. Other than that it's just perfect. Contains ads lol.

Jes. H. Jan 26, 2019     

If your phone is lagging this will fix it BUT BE WARNED: be very careful about what you delete because it will autonatically delete EVERYTHING including photos. app or game data. music audio and video. and any other downloaded stuff you have.

Edg. R. Feb 17, 2019     

not clear what next step after click/tap " move to SD" shall be tapped "force stop"/"uninstall" or nothing to do or clear cache & data / launch...Yet, result was not been moved. Simply, it didn't worked. Aweful!!! but I trust you others. need only to improve & check about it...also too much strictly detect background caused annoying....etc...

Fra. O. Feb 15, 2019     

this app definitely works to boost speed, but i'm not so sure about the cleaning aspect. everytime i go to use the cleaning tool it says i have 1.2 GB of trash and proceeds to "clean" it. i could immediately go back to the tool and it would say i had 1.2 GB of trash. its always there.

Bab. L. Oct 15, 2018     

It's a very good app and help to protect your device and helps you to use your device better. But unfortunately when I update this app today, my phone started ringing like message ringtone! And I couldn't stop it anyway. So I had to uninstall it. Wish to fix it soon.

Ste. S. Oct 10, 2018     

Not sure. Hadn't had ad's til download. Now every time I use my APS. Game's, social media. Everything interrupted with annoying ad's at least every 5 minutes. Or less. Then they either go back to start delete my conversation or back to home screen

Tre. T. Apr 21, 2019     

Installed easy enough and from then on it was full page ads after every action. Shame you put so many full page ads, in because l just uninstalled it and wont bother using it again. Plenty of others with less intrusive ads.