Many users of smartphones based on Android periodically encounter strange directories in the device’s memory when trying to free up space. One of these mysterious folders is often a directive called chartboost. The name sounds unfamiliar, and its location in the root of the internal memory or on the SD card raises natural questions about the security and origin of this directory.
In this material we will analyze in detail what this component is responsible for, whether it is a virus or a system file, and whether it can be painlessly removed to free up gigabytes of space. Understanding the nature of such folders is critical for proper management of your gadget's storage without the risk of disrupting installed applications.
We will look at the technical aspects of the operation of advertising networks inside mobile games, the mechanism for saving the cache, and provide step-by-step guide for safe cleaning. If you notice that this folder takes up hundreds of megabytes or even several gigabytes, this article will help you make the right decision.
Technical purpose and origin of the folder
The folder chartboost is created on the device automatically after installing and first launching applications that use the advertising SDK (Software Development Kit) of the same name. Chartboost is a well-known mobile advertising platform specializing primarily in the gaming industry. Game developers integrate this code into their projects for monetization by showing users videos, banners or interactive ads.
The main function of this directory is to store temporary files necessary for the correct display of advertising content. When you start a game and see a promo video before the start of a level, the promo video file is often pre-loaded and saved in this folder. This is done so that when shown again or if the connection is unstable, the advertisement can be downloaded instantly from local storage, and not downloaded again from the network.
Inside the directory there are usually files with extensions .mp4, .jpg or encrypted binary data. Their volume can grow rapidly if you actively play projects that are saturated with advertising. Over time, hundreds of megabytes of “garbage” accumulate, which is essentially a cache of videos watched or prepared for display.
⚠️ Attention: The folder itself is not malware. This is a legitimate working ad module cache. However, some unscrupulous developers may abuse this by storing excessive amounts of data without timely auto-cleaning.
If the chartboost folder takes up more than 500 MB, this is a clear sign that automatic cache clearing in games is not working correctly or is disabled.
Impact on performance and memory size
The accumulation of unnecessary files in a directory chartboost directly affects the available internal memory of the smartphone. For devices with small storage (for example, 32 or 64 GB), losing a few gigabytes can be critical. When free space runs out, the operating system Android begins to work slower, and new applications stop installing.
In addition, constant recording and reading of large video files can indirectly affect the speed of the drive, especially on budget phone models with memory type eMMC. Although there is no direct connection with the processor freezing, fragmentation of the file system due to the huge number of small advertising assets does not benefit the system.
Users often notice that after deleting heavy games, the folder remains and continues to take up space. This occurs because when you uninstall an application, the data in shared memory is not always completely removed. Residual ad network files can sit for months if not removed manually.
Is it safe to delete the Chartboost directory
The main question that concerns smartphone owners: is it possible to delete this folder without consequences for the operation of the phone and installed games? The answer is clear - yes, deletion is safe. The files inside are purely cache. Their loss will not lead to a breakdown of the operating system, reset of settings or deletion of your saves in games.
The next time you launch a game that uses this ad module, the folder will be created anew. The system or application will automatically generate an empty directory chartboostas soon as new advertising material needs to be uploaded. The only temporary inconvenience is that when you first launch the game after cleaning, the advertisement may take a little longer to load, since the files will have to be downloaded from the Internet again.
It is important to understand the difference between deleting a folder and deleting the application itself. By removing only the cache directory, you do not affect the game executable files. Your progress, achievements and in-app purchases will remain completely safe, as they are stored in other protected memory sections or in the cloud.
Deleting the chartboost folder frees up space instantly and does not break the games, since it is only a temporary buffer for advertising videos.
Instructions for manually clearing storage
To free up space, you You can use the standard file manager that comes pre-installed on your device. The process does not require obtaining root access and takes only a couple of minutes. Below is the algorithm of actions for most versions Android.
First open the "Files" or "File Manager" application. Go to the "Internal Storage" section. Scroll through the list of folders until you find a directory named chartboost. It is usually located in the root, on the same level as the folders DCIM, Download or Android.
Click on the folder and hold your finger to select it. From the menu that appears, select the "Delete" option or the trash can icon. Confirm the action. If you use third-party explorers, such as Total Commander or FX File Explorer, the procedure is similar: find the path, select and erase.
☑️ Safe cleaning algorithm
In some cases, the system may not allow delete the folder if a game that uses advertising is actively running at that moment. In such a situation, it is recommended to close all running applications through the multitasking menu before attempting to uninstall.
Automating the process using utilities
Manual cleaning is effective, but requires your participation. If you want garbage to be removed regularly without your intervention, you can use specialized optimization applications. Many of them have functions to search for duplicates and residual files.
Popular tools like Files by Google, CCleaner or Clean Master can scan storage for ad network caches. When starting the analysis, such apps often mark the folder chartboost as safe for cleaning, classifying its contents as “Advertising cache” or “Temporary files”.
Setting automatic cleaning in such utilities allows you to forget about the problem of full memory. You can set a schedule, for example, once a week, and the phone itself will get rid of accumulated advertising garbage, including the contents of the directory in question.
⚠️ Attention: Be careful when using aggressive “cleaners”. Some of them can delete not only the cache, but also useful data, for example, saved logs or offline maps. Always check the list of files before confirming bulk deletion.
Why does the folder appear again after deletion?
The folder is a system requirement for the ad network SDK. As soon as any application with integrated Chartboost tries to show an ad, it will check for the presence of the directory. If it doesn’t exist, it will create it again. This is normal behavior of the app code, and not a sign of a virus.
Comparison with other advertising caches
The folder chartboost is not the only one of its kind. The smartphone’s memory may contain similar directories from other advertising networks. Understanding their differences helps you better navigate the file system.
Below is a table comparing popular advertising caches found on devices running Android:
| Folder name | Advertising network | Content type | Appearance frequency |
|---|---|---|---|
chartboost |
Chartboost | Video, interactive | High (in games) |
admob |
Google AdMob | Banners, video | Very high |
unityads |
Unity Ads | Videos | High |
vungle |
Vungle | Full screen video | Medium |
As can be seen from the table, the principle of operation is similar for all of them. All these folders serve one purpose - caching media content for quick presentation to the user. The cleaning strategy for all of them is the same: if you need space, you can remove them without fear.
However, it is worth noting that the cache from Google AdMob is often stored inside a protected directory Android/data, where access without special rights may be limited in new versions of Android (starting from version 11). The folder chartboost in this regard is more “open” and is often located in the root, which makes it easier to manage.
To quickly check the space occupied, use the built-in “Storage” function in the phone settings. There you can see which applications take up the most space, and often they are the ones that generate large caches.
Preventing the accumulation of advertising garbage
To prevent the folder chartboost from growing to gigantic proportions in the future, you can take a number of preventive measures. The most radical, but effective way is to refuse games with heavy advertising or buy paid versions of applications where advertising is disabled.
It is also possible to limit background data transfer for specific games. If a game can't download an ad in the background, it won't cache it. To do this, go to Settings → Applications → [Select a game] → Mobile data and disable network access in the background.
Regular memory audits should become a habit. Once a month, look into the file manager and check the root directory. Removing accumulated cache not only frees up space, but can also potentially speed up the device by reducing the load on the memory controller when indexing files.
Is it possible to delete the chartboost folder through a computer?
Yes, you can connect your phone to a PC via a USB cable in file transfer mode (MTP). In this mode, the folder will be visible as a regular directory on a removable disk. You can select it with the mouse and press Delete. This is even more convenient, since it is easier to navigate through files on a large screen.
Are the contents of the folder a virus?
No, the files themselves inside are not viruses. These are legal media files of advertising networks. However, if you downloaded a game from an unverified source, theoretically, malicious code could be hiding under the guise of a legitimate folder. In this case, it is recommended to scan the device with an antivirus, but the chartboost folder from the official Google Play itself is safe.
Why does the folder weigh the same after deletion?
If you deleted a folder, but immediately after that the amount of occupied memory did not change, you may have deleted the shortcut or the system displays the cache with a delay. Try rebooting your device. If the folder instantly fills up again, it means that some application is actively downloading advertisements in the background right now.
Do you need root access to delete?
In the vast majority of cases, root access is not required. The folder is located in the user section of the internal memory, access to which is open by default. Problems can only arise if the folder is inside the system partition, which is not typical for chartboost.
Does deletion affect the operation of the Internet?
No, deleting the advertising network cache does not in any way affect the speed of your Internet connection or the operation of other applications. The only change is that when you launch games, advertising will be loaded from scratch, which may require a little traffic if you do not have an unlimited tariff.