SD Card Test Pro
No ads!
Easy to use even for beginners. Quick tests.
Highlighted features:
✔ Measure the speed of your external (removable) SD card
✔ Measure the speed of your internal storage
✔ Verify written data: damaged or fake card detection
✔ Read/write tests using several different combinations.
✔ Customized benchmarks
✔ Detecting storage type and class
✔ Supporting several file systems like ext4, exFAT or FAT/FAT32.
✔ Support portable and adoptable storage as well
The tests are not destructive, but can consume a lot of space temporary during the measurement.
How to use it:
First select the storage type you want to test it. You can choose between internal or external storage.
If the app could not detect any SD card, then it will display a "Storage cannot be detected" message, but you are still able to browse it manually (if there is sd card in your device).
After you selected the storage type, choose between write and read test, but firstly always run a write test.
On the first tab (Dashboard), you can see the speed on the speedometer while on the Visualization tab, you can check the current and average speed on the graph.
After the test is finished, on the Results tab you can check the details like processed data, storage path, runtime or speed.
Furthermore, here the app will detect the type of your internal storage (like eMMC or UFS version) and will detect the class for the SD card (like Class 10, UHS-I U1, V10).
Important thing that the app will do these calculation based on the speed, thus it needs at least 4 GB of read or written data and at least 10 seconds of run time, otherwise the result can be misleading.
Finally, you can share the results easily with one-button method.
For professional people:
In the Settings panel, you can adjust the size of the file(s) to read/write, you can change the number of the files (between 1-10).
Good to know:
✔ if the sd card uses FAT/FAT32 file system, the maximum file size can be 4 GB, don't set it higher instead use more files. If you want to use bigger files, format the sd card to exFAT (mostly you can do it using a computer, and don't forget older mobiles do not support it).
✔ 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.
Category : Tools
Reviews (27)
Excellent app for checking SD storage specs! The developer has a portfolio of very good technical apps. Some users attempt to use the phone or other apps when running this, i would suggest not doing this, as it will affect readings.
Does it all in simple way no need to be a developer to understand it. Love the black theme 😍
Seems to work fine on my s20 ultra,however before using this app my phone had only used 42gb out of 128gb of internal storage but since running the app it now states I have used 69gb of internal storage which is just not possible. Please can you rectify this.
Very effective utility app to take a detailed look at your storage. Many functions here: bit of a learning curve actually--yet quite satisfying for your efforts. Great developer! ⭐⭐⭐⭐⭐
Seems to work ok but I keep getting message that some features only available in pro version which is annoying because I paid for pro version when installing
Awesome work from Zoltan. This Dev rocks!! Easy to understand and a wealth of information available.
Not certain what happened! Started out had a little over 11GB of storage used out of 32. Now I have none. Please help 🥺
Problem with testing "All". It can only test WRITE only, not READ or ALL, after just buying for 2 days.
Excellent app. Well worth giving it a try. It also has a very nice UI. I thoroughly recommend it.
So far the most detailed and nice interface.
This apps could be useful for micro SD or external flashdrive for issues
Bought the Pro Version for my phone, saved me from those ebay clones! Can I transfer to my Chromebook or just buy over? No worries
Exactly what I needed! Thank you! And very clean too!
Doesn't work with adoptable storage.
I got the Pro and it Works ok on my SD card
best sd card scan tools ever....
Great program, worked as expected.
Not a bad app
Does what its supposed to do
Load of rubbish
Works as stated
Another winner!
I was able to verify my 256 GB Samsung micro SD card was legit. I did discover that in order to run the test, you must leave the app open. You can't shut the screen off. The test will stop and need to be restarted. This app should be able to run in the background.
So far is equal to other testing equipment I've tried , and a lot faster
Doesn't work. The app gets stuck randomly in the process of testing. The app got stuck randomly during all three attempts I made on my 256GB Samsung card.
Note 8 I Like this utility. Getting Sd error but havent set up permission yet. Comes up with very nice report at end. Great work Developer
An idea of what your SD Micro's running from one device to another. I am an avid Samsung EVO micro card user, consistent in both durability and speed. I do find 64GB/higher seem to fair better, in fastr spd consistency. Xpct 90-read/80-write on 3.0slot PC's & 68-r/45-w in devices; Phns,Tabs, etc. Only SanDisk's (Extreme Pro) line fair better. 87-read/68write, and thats just in devices! The write shines in Cams, pic quality, resolution, FPS. The Rd shines x-fering it all. Also btr App open times.