Modern smartphone users are often faced with the need to determine which architecture the installed software supports. This becomes especially true when installing specific versions of apps, emulators, or when diagnosing performance problems. The application bit size is a fundamental parameter that determines how the app interacts with the device's RAM and processor.
In the ecosystem Android there are two main types of architecture: 32-bit (arm-v7a) and 64-bit (arm64-v8a). Knowing the exact bit depth executable file allows you to avoid compatibility errors and ensure maximum software speed. If you try to run 64-bit code on an old 32-bit processor, the system will simply refuse to install it.
There are several methods for obtaining this information: from using built-in developer tools to using specialized console utilities. In this article we will analyze each method in detail, evaluate their complexity and the accuracy of the data obtained. You will learn how to quickly determine the architecture of any APK file without the need to be an expert in programming.
The influence of processor architecture on the operation of applications
The central processor of a smartphone is the “brain” of the device, and its architecture dictates the rules of the game for all software. Processor bit capacity defines the maximum amount of addressable memory and the width of the registers through which data is transferred. For ordinary users, the difference may not be noticeable in everyday tasks, but in heavy games or professional software it becomes critical.
The industry's transition to 64-bit standards is due to the need to work with large amounts of data. 32-bit applications are limited to an address space of 4 GB, which in modern realities often becomes a bottleneck. At the same time, 64-bit applications can effectively use more than 4 GB of RAM, which directly affects the stability of multitasking systems.
⚠️ Attention: Installing a 64-bit version of an application on a device with a 32-bit processor is physically impossible. The system will generate a package parsing error during the installation stage.
Developers often release universal APK files containing libraries for both architectures to ensure maximum audience coverage. However, such "heavy" packages take up more memory space. Understanding exactly which library your device uses helps you optimize and select lighter versions of apps.
If your device was released after 2015, there is a 99% chance that it supports 64-bit architecture, even if some older applications run in 32-bit mode.
Checking bit depth through developer settings
The fastest way to get general information about system support for architectures is to use the developer menu. This method will not show the bit depth of a specific installed application, but will give an understanding of the capabilities of your smartphone. To activate this mode, you need to click on the build number several times in the “About phone” section.
After activating the hidden menu, go to the section System → For developers. Here we are interested in the item related to monitoring or debugging. In some firmware, for example based on clean Android or MIUI, you can find information about the preferred architecture in logs or special debugging menus.
However, it is worth noting that standard settings rarely provide detailed information about each individual application. They rather show the global settings of the system kernel. To obtain accurate data about a specific APK file this method is only auxiliary and requires the use of additional tools.
- 📱 Go to the settings and find “Build number”.
- ⚙️ Click on it 7 times to activate the mode developer.
- 🔍 Go to the “For Developers” menu and study the debugging sections.
Using this method is safe and does not require installing third-party software. This is an ideal option for initial diagnostics of the device before attempting to install specific versions of apps. If the system does not have an explicit indication of the architecture, move on to more advanced analysis methods.
Using utilities to analyze APK files
The most convenient way for the average user is to install specialized analyzer applications from the store Google Play. Utilities such as LibChecker, DevCheck or AIDA64scan installed packages and display detailed technical information in an understandable form.
After installing such an analyzer, select the application you are interested in from the list. In the package information section, you will see a Supported ABIs or "Supported Architectures" field. This is where it is indicated which libraries are built into this particular instance of the app. Usually values like arm64-v8a, armeabi-v7a or x86_64.
This method is good because it visualizes the data and does not require a connection to a computer. You can instantly check the bitness of a game, browser or messenger. Some utilities even highlight whether an application is fully 64-bit or uses a mixed mode.
⚠️ Warning: Data in third-party applications may experience a delay in updating. If you have just updated the app, restart the analyzer to get the latest information.
| Utility name | Difficulty of use | Presence of advertising | Data accuracy |
|---|---|---|---|
| LibChecker | Medium | No | High |
| DevCheck | Low | Yes (Pro version without) | High |
| AIDA64 | Low | Yes | Medium |
| App Inspector | Low | Minimum | High |
Third-party utilities - the fastest way to find out the bit depth without connecting to a PC and using complex commands.
Analysis via a computer and the ADB utility
For those who prefer maximum accuracy and control, Android Debug Bridge (ADB)will become an indispensable tool. This method requires a computer and USB debugging enabled on your smartphone. It allows you to directly query the system for information about the native libraries of any installed package.
First, connect your smartphone to the PC and make sure that the device is visible in the system. Open a command prompt or terminal in the platform tools folder. You will need to know the exact name of the application package, which can be viewed in the settings or through the command adb shell pm list packages.
adb shell dumpsys package com.example.appname | grep supportedAbisRunning this command will return a list of architectures that this particular package supports. If you see arm64-v8ain the output, it means that the application is optimized for 64-bit architecture. This is the most reliable method, as it reads data directly from the system package registry, bypassing third-party app interfaces.
What to do if the command does not return a result?
If the command does not output information, try using an alternative request: adb shell pm path com.example.appname, and then analyze the contents of the APK through a zip archiver on your computer, looking at the lib folder inside the archive.
Method with usage ADB is especially useful for system applications, information about which is often hidden by conventional analyzers. It also allows you to check the “cleanliness” of the installation: sometimes the system can install missing libraries, and ADB will show a complete picture of support.
Manual analysis of the contents of an APK archive
An APK file is essentially a regular ZIP archive. This means that we can open it with any archiver on the computer or even on the phone itself and look inside. The folder structure inside the archive clearly indicates the bit depth of the libraries it contains.
Change the file extension from .apk to .zip and open it. Inside, find a folder named lib. This is where compiled native libraries are stored. The presence of a subfolder arm64-v8a indicates 64-bit support, and the folder armeabi-v7a indicates the 32-bit version.
- 📂 Rename the application file to .zip.
- 🔍 Open the archive and go to /lib/ directory.
- 📁 Check for the presence of the arm64-v8a (64-bit) or armeabi-v7a (32-bit) folders.
This method is ideal for checking APK files that you have downloaded from unverified sources before installing them. You will be able to see in advance whether the file is suitable for your device. If the folder contains both directories, it means that the developer has created a universal package. lib Both directories are located, which means the developer has created a universal package.
⚠️ Attention: When manually renaming and unpacking system applications, be careful. Do not try to modify the contents of the archive without understanding the consequences, this may violate the digital signature.
☑️ Preparing for APK analysis
Frequently asked questions about the bit depth of Android applications
At the end of the article, we will answer the popular questions that users have when trying to understand the architecture of their devices. Understanding these nuances will help avoid confusion when choosing software.
Is it possible to run a 32-bit application on a 64-bit processor?
Yes, absolutely. 64-bit processors Android have full backward compatibility. They can run 32-bit code without any problems, although in some cases this may occur with a slight loss of performance compared to native 64-bit applications. Why do some applications take up so much space? Often the reason lies in the architecture. Universal APK files contain libraries for both 32-bit and 64-bit systems, as well as resources for different screen densities. This increases the size of the installation package by 1.5–2 times compared to the optimized version for a specific device.
Why do some apps take up so much space?
Often the reason lies precisely in the architecture. Universal APK files contain libraries for both 32-bit and 64-bit systems, as well as resources for different screen densities. This increases the size of the installation package by 1.5–2 times compared to the optimized version for a specific device.
Is it necessary to switch to 64-bit versions of games?
For modern heavy games - yes. Developers are gradually abandoning support for 32-bit architecture, as it limits the use of RAM. The transition to 64-bit versions ensures more stable FPS and no crashes in resource-intensive scenes.
How can I find out which kernel my phone is using?
Information about the system kernel can be found in the section Settings → About phone → Software information. The version of the Linux kernel is indicated there. However, the kernel capacity does not always directly indicate the capacity of user applications, since a mixed execution environment is possible.
Does capacity affect battery life?
Indirectly affects. 64-bit applications can run more efficiently in terms of data processing, which theoretically saves battery. However, due to the larger code size and the use of more processor registers, in some scenarios power consumption may be slightly higher than that of optimized 32-bit counterparts.