Increase RAM Size with SD Card on rooted Android phones

With over one million Apps in Play Store, Android smartphone users can easily find apps for almost all the needs. Having said that, in order to run resource hungry apps and games without any hiccups, your Android smartphone needs to have top-tier hardware specs, most importantly the device should have enough RAM – helps the processor to perform processes much faster. Without enough memory, there is a good chance the background tasks might get terminated automatically, and many apps / games will not work properly right off the bat, which means even if the processor is best of the class and you don’t have enough RAM to underpin it, then having that beast under the hood is pointless. Sadly, unlike laptops and PCs, here you can’t have the luxury to increase the physical RAM memory. Luckily, there is always a solution for almost every issue, when it comes to the Android operating system.

Use SD card as RAM on your Android device

If you have a rooted Android device, then you can actually increase the RAM with the help of a RAM Expander app, called Roehsoft RAM Expander, which will set you back $9.99. At this price, this RAM booster for Android device is quite expensive, but at the same time, this is one of the trustworthy apps for Android memory management. This app creates a SWAP file on your SD card and uses this file as Virtual RAM to improve the overall performance of your device.

To make this work you will need a class 4 SD card at least, however for better performance you might have to use best in class SD card (Class 10 SD card).

However, before you decide to increase the RAM of your device you should make sure a couple of things. First of all, you should make sure your device is properly rooted. Since some manufacturers have disabled the creation of Swap files, you should check the device compatibility as well.

Verify the compatibility of device

If you are all set to improve the RAM of your device, at first, you have to download and install MemoryInfo & Swapfile Check from Google Play Store.

check SWAP file check on Android phone

Then start the app, grant it SuperUser rights and tap on ROEHSOFT RAM EXPANDER TEST button at the bottom. Following that, select the swap path and use the device normally for a while. If your device ran fine and didn’t hit the wall, after a few minutes the app will show a “Congratulations” message, which means your device is compatible and you can increase the RAM of your device by installing Roehsoft RAM Expander App.

[Download Roehsoft RAM Expander]

Install & run the RAM Expander to increase the RAM

Once you have confirmed that your device is compatible with Roehsoft RAM Expander App, download and install it. Then launch the app and grant it root permission. Now use the slider on the screen to adjust the amount of space you want to give to the Swap partition. Simply tap ‘Optimal Value’ button to automatically adjust the settings for better results. Then tap on Swap Active button to increase the RAM right away. Your device should now have more RAM, and thereby improved Android performance.

increase Android RAM memory with RAM Expander

You might not find any increase in RAM value anywhere in your device though you probably could feel the improvement in overall performance of the device. In order to verify the difference in overall performance of your Android device after expanding the RAM memory, just run some resource hungry HD games or apps that you couldn’t run before because of less RAM.


You don’t have to increase RAM on the phone if you already have an Android device with enough memory to run any heavy apps or games you throw at it. But if you need more memory for the phone to improve the productivity, then Roehsoft RAM Expander is a good deal for you. It costs you $9.99, but look on the bright side, the RAM expander lets you get free extra memory for your Android phone from an SD Card, and thus better performance for your device.

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