Back to Top
True SD Card Capacity & Speed Test Pro Version Screenshot 0
True SD Card Capacity & Speed Test Pro Version Screenshot 1

About True SD Card Capacity & Speed Test Pro Version

This "short" endurance test confirms if you SD card is valid and reliable or if it's a counterfeit that has way less storage space than advertised. It fills your card with carefully designed files that the app can then verify to ensure that what's written to your flash card can be read back reliability. It also measures read & write speed at the same time, because, why not?

It's not the most pretty app because the focus has been instead on real-world testing and good algorithms. It is, however, easy enough to use. The only way to know your card is good is to fill it to the advertised capacity. Typically this takes less than an hour but can be longer if the card is particularly slow or enormous. But this app is happy running in the background (unless you use one of those unnecessary app-killers) while you continue to use your phone. Or, just leave it running overnight. Piece of mind is worth the wait and there are no shortcuts to it!

You can also test your phone's internal storage. With USB-OTG you probably can test thumb drives too, depending on how your phone works.

Similar Apps - visible in preview.

SyncMe Wireless

SyncMe Wireless

3.5

Copy, move, sync and backup your mp3, pictures and documents over WiFi, USB tethering, cellular VPN or wired network to your computer or NAS device.

SD Card Test Pro

SD Card Test Pro

4.6

Use the best SD speed test tool!

Cloud File Manager

Cloud File Manager

4.1

DriveHQ Cloud File Manager can manage both local and cloud files.

File Manager-Easy & Smart

File Manager-Easy & Smart

3.6

The best File Manager is a powerful file explorer for Android that you can handle all your files and folders, which stored in your internal storage and external storage.

USB Media Explorer

USB Media Explorer

4.1

USB Media Explorer (UME), formerly known as Nexus Media Importer, allows you view photos (Jpeg and Raw), stream videos1, listen to music, and view documents from USB storage devices and cameras.

author
Excellent app, did exactly what I wanted: to check my SD card for read/write speed and capacity to make sure it was legit. Very clear to use, well written explanations and a no nonsense interface - well done!
pav
author
I got this app wanting to see if my sdcard was a fake. This app does the job without having to put your sdcard into a pc for testing. The down sides: it could use a dark theme. I would like a better progress...
Silent Mage
author
Great app. No nonsense disk speed test. I'll review once I've received and tested my 128GB SD card. A cool feature would be to set the size of the individual temp files or maybe have an option to write 4GB o...
Olebogeng Thothela