What are junk files in the phone

Your smartphone will run like new again!

Peter-Uwe Lechner

Android tends to become more and more sluggish over time. We show how you can counteract this and efficiently clean up the system in order to get back to the original performance.

EnlargeClear out your smartphone and increase its performance.
© iStockphoto.com/Talaj

A slow smartphone is especially annoying if you have invested a lot of money in the latest technology. A high-performance CPU and the latest software are not always a guarantee for top performance for life. So it is time to clean up the system properly and free up storage space.

Clean up the startup programs on Android
Just switching on the android takes much longer than usual. Mostly to blame are apps that become active immediately after being started and work in the background. This is usually the case when applications always obtain data from the network. Some apps, especially games, are annoying advertising Trojans that register themselves as an autostart program to store shortcuts on the home screen. In addition, these games annoy you with advertising pop-ups from other games. The more apps that are running when Android starts up, the longer the device will take to start up. It is therefore worth checking the autostart list regularly for unwanted entries.

Samsung in the home network

The Startup Manager app from the Play Store will help you with this. In the "User" tab you can see all of the applications you have installed and which start automatically. Remove the green check mark next to an entry in order to delete the program from the autostart. The pre-installed autostart programs that start automatically with the operating system are listed on the “System” tab. By the way, under “Customize” you can set up your own autostart apps.

Clean the system and clear the cache of apps

EnlargeIn the “Appcontrol” tab, SD Maid provides an overview of all apps installed and running on the device.

Having a maid do all the work for you while you sit back and relax in the armchair is often just a dream. Your wish will come true with the SD Maid application. The program is called "Maid for Android", matching the app icon. However, in order to use the full functionality of the application, you must have root rights on your smartphone. The All-In-One Toolbox app is a no-root alternative to SD Maid.

SD Maid offers a total of ten tabs: The start page gives you an overview of the cache and data storage as well as the system folder. The next two tabs deal with the data on your phone. The app even offers a file manager to delete, copy or rename content such as photos or videos. The "Appcontrol" section is similar to the standard "Application Manager" function of Android itself. You receive an overview of all apps installed on the device and currently running. You can start the applications, delete them including their saved data and clear the cache. If you remove an app from your smartphone, it often leaves behind a database that is buried deep in the memory. In order to completely free your precious storage space of this data garbage, SD Maid tracks down the remains under the tab "Corpse Finder" and disposes of them properly. This is a helpful function, especially for cell phones with a small storage volume, which immediately creates more space. In addition, the application will look for duplicate files on your phone. The app also shows the largest collections of data in memory at a glance. Incidentally, the application also empties your cache memory, which contains data and content from previously executed programs that have been calculated once, so that the data is immediately available the next time you start it, which enables the app to run faster. The Cache Cleaner app serves as an alternative.

Remove pre-installed apps from the smartphone
If you have signed a cell phone contract including a new cell phone, then this is likely to be branded by the cell phone provider. It is not uncommon for providers to install their own software on the smartphone. The catch, however, is that the applications cannot be easily removed and use up the memory. To get rid of such applications, you need root rights. For example, instructions on how to root can be found in this post.
Download the Titanium Backup app. Before using the app, you should activate "USB debugging" in the settings. The program, intended as a “backup tool”, is wonderfully suited for deleting pre-installed apps that are pre-installed by the manufacturer and possibly by the provider. To do this, go to “Backup / Restore” in the application, select the app to be deleted and then tap “Uninstall”. We advise you to make a backup copy of all apps and the associated data beforehand. In the Pro version, which costs just under 5 euros, you can put the backup in your Dropbox right away.

Tune Samsung Galaxy with free apps

Also, don't be overzealous in deleting apps without knowing what they are doing. To test whether there is a risk of a system malfunction when it is removed, an app can simply be frozen - but this only works in the Pro version. Freezing is equivalent to deactivating it, but the app continues to take up storage space. If there are no errors, you can delete the app.

Muck out iOS with Phoneclean on the PC

The easiest way to regain storage space on iPhone and iPad, is the deletion of unnecessary apps. Under “Settings> General> Usage”, iOS shows the largest memory hogs sorted by apps. Anyone who takes a lot of photos with the iPhone will always find “Photo & Camera” at the top. Images and videos that are not required can be sorted out when synchronizing with iTunes or - if the recordings were made on the iOS device - even deleted in Explorer when the device is connected to the PC. Other space hogs are games, video editing apps and other large apps such as Pages.

EnlargePhoneclean is the only tool so far that can clean up iOS storage.

The Windows application Phoneclean is the only tool so far that can clean up the iOS memory. To use Phoneclean, iTunes must be installed on the PC. Install and start Phoneclean. Now connect your iPhone to the PC. In the main window of Phoneclean you will see four option fields which have already been pre-selected with ticks. This allows you to specify which areas in iOS should be cleaned up by the software. You can choose from “Temp an Junk Files”, i.e. temporary data that is stored when apps are run, but not required - comparable to the content that Windows saves in the Temp folder.

A click on "Start Scan" provides a preview of all files to be deleted after a device check. In the "Size" column, the tool shows how much storage space it can free up within the respective area. You can then carry out the actual cleaning action by clicking on "Clean Up". A progress bar at the top of the window visualizes the process. At the end, the program displays the memory space released by the software again.