SD Card Test

Zoltán Pallagi

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About this app

Use the best SD speed test tool! Test the speed of internal or external storage, sd card!

Highlighted features:
✔ Measure the speed of your external (removable) SD card
✔ Measure the speed of your internal storage or any disks
✔ Read/write tests using several different combinations.
✔ Show storage type: eMMC, UFS 2.0 and 2.1 or higher
✔ Show class: Class 2, Class 4, Class 6, Class 10, UHS-I, UHS-II and UHS-III
✔ Supporting several file systems like ext4, exFAT or FAT/FAT32.
✔ Support portable and adoptable storage as well
✔ Show storage details: free space, total space, mount options, device name

Supported memory cards:
* Basically any sd cards: Micro SD, SDHC and SDXC
* built-in memory (card)


Good to know:
✔ If the sd card is formatted as adoptable storage, the app may unable to access it directly. In that case either move the app to the adoptable storage (change the install storage), or format the storage as portable storage.


Note: if you measure slow speed, this is not the fault of the app. This is the reality of your phone.
Common reasons: fake sd card, slow sd card reader/hardware problems of the phone, software problems.

Easy to use even for beginners. Quick tests.

Ratings and reviews

Very good. Self explanatory basically. A good tool to have in deep sleep and use every several months to check the sd card, they dont last forever and this can help indicate if something is wearing down from use and write cycles. 🤌 viva la kudos 🗃️

You have hundreds of "legitimate interest" you need to manually turn off or else you give permission for them to access everything on your phone, despite you did not, but you did not know you did and will never find out which of them was since they just share it with their other partner and repeat the process.

An excellent very useful tool to verify the class of SD and Micro SD cards. would prefer if the default source to test was external drive and not the local drive, several times I tested my phone's internal drive instead to the SD card after changing some settings.

What’s new

Maintenance fixes