A1 SD Bench APK

Version 2.6.4 - com.a1dev.sdbench

Benchmark SD card to test IO read / write speed and check media performance.

A1 SD Bench apk

APP Information

Download Version 2.6.4 (17)
Apk Size1.55 MB
App DeveloperHumanLogic
Malware CheckTRUSTED
Install on Android4.0.x and up
App Packagecom.a1dev.sdbench.apk
Website http://a1dev.com

Download A1 SD Bench 2.6.4 APK

App Description

A1 SD Bench is a1dev,sdbench,tools,bench, content rating is Everyone (PEGI-3). This app is rated 5 by 3 users who are using this app. To know more about the company/developer, visit HumanLogic website who developed it. com.a1dev.sdbench.apk apps can be downloaded and installed on Android 4.0.x and higher Android devices. The Latest Version of 2.6.4 Available for download. Download the app using your favorite browser and click Install to install the application. Please note that we provide both basic and pure APK files and faster download speeds than APK Mirror. This app APK has been downloaded 7362+ times on store. You can also download com.a1dev.sdbench APK and run it with the popular Android Emulators.

*** IMPORTANT - If your SD card is not detected, please send us your model and SD card location, before giving a rating. We can not test this app on all devices ***
Use A1 SD Bench - free tool to benchmark your phone & tablet SD card, RAM and memory, to test IO read  write speed (Quick, Long, Random IO and Accurate) and check media performance, and compare your benchmark results online.
★ Free
★ Four benchmark modes - Quick, Longer, Accurate and Random IO
★ Built-in compare results online (anonymous)
★ Built-in view statistics online
★ SD card speed test, or multiple SD cards
★ Speed test any Android storage including RAM and USB
★ Nice looking, clean, fast, responsive & intuitive UI (User Interface)
★ Measure both read and write speeds to find out how fast is your SD card
★ Quick and Accurate benchmark (to reduce caching effects)
★ Check your speed-test results with other devices
★ Speed categories: Class 2, Class 4, Class 6, Class 10, UHS-I, UHS-II and UHS-III
★ Custom location option to test any device directory
★ Shows total and free memory for all media including RAM
Supported devices:
• Internal memory
• Internal SD cards
• External SD cards
• System RAM (Random access memory)
• USB flash drive (including, NAND flash, USB 1.0, USB 2.0, USB 3.0)
• Up to 6 USB flash drives (connected simultaneously via USB hub)
• USB HDD (Hard drives)
Supported memory cards:
• SD Cards
• Micro SD
• Micro SDHC
• Micro SDXC
• Phone's built-in memory (card)
• Problem? Please, send us your feedback using Send Feedback feature from the Settings screen, or http:a1dev.comfeedback
• We can not test all Android devices, so if your device's memory  SD card  USB is not detected correctly, use Send Feedback feature from the Settings screen, specifying path to your storage, e.g. mntsdcard, mntusb_drive;
• NTFS and other non-native file systems is supported as far as your Android device is compatible with a such FS.
• Your device needs enough free (100 MB and up, depending on media speed, and up to few GB if using longer test option) space for benchmarks to work;
• More: http:a1dev.comsd-benchnotes
More info on permissions:
• "Storage" & "Media" is used to benchmark your device storage, SD cards and USB attached drives.
• "Internet" is used to access and submit online scores and for anonymous usage statistics (both can be enabled and disabled). 

App ChangeLog

  • Fixes issue with incorrect write speed shown.

App Screens

A1 SD Bench App Screen 1A1 SD Bench App Screen 2A1 SD Bench App Screen 3

Older Versions

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Google Play Reviews

  1. Papai Karmakar-avatar

    Papai Karmakar

    I think the results are accurate. My device was Realme 6i. Storage read speed 430MBps RAM(lpddr4x) speed was 22GBps My class 10 Samsung sd card was having 74MBps read speed. Where they mention 95MBps read speed.

  2. Fikri Fauzan-avatar

    Fikri Fauzan

    Awesome app,, I think the result is accurate, this is really helping me to check my emmc health. Keep it up...

  3. hamzah Ebrahim.A-avatar

    hamzah Ebrahim.A

    Would be great for upgrading and there'd some problems with ram speeds and sd card internal speeds are awesome but u should really checkout abut the sd card a huge mistake so pls do it the moice app !

  4. Anon X-avatar

    Anon X

    **PRO TIP** there s a small refresh button on the results page after you run a test that shows your's. Don't like that s show's other user's test speeds under results? Also it said I had 4 SD cards when I started it, my 64gb sd card, new, and 3 24 gb SD cards, my internal drive, which is NOT partitioned? So I was confused by that, but after running a test on them they went away. It has my read correct, but says my write s 0? Not sure whats up with that. Samsung s7 with Samsung sd card

  5. wlukeh-avatar


    What a load of rubbish! Didn't pick up the correct size for SD card, internal memory or RAM. utterly hopeless. Launch a benchmark test, go to results but WHERE'S THE RESULT FOR MY XARX IN MY PHONE???? Loads of other people's results for phones I'm not interested in testing. Uninstaller as quickly as I could.

  6. Vanessa Hooper-avatar

    Vanessa Hooper

    Worked fine for me on my S-4, did exactly what it said it would. Interface is basic, but who cares? It works (& it's free)! Detected & scanned all of my internal drives, including my SD. I haven't tried it on external SDs yet, but so far so good.

  7. Ricardo Miguel-avatar

    Ricardo Miguel

    for me it was confusing as I put to test and the results were not easily displayed. It tends to go to the online results from other devices.... I find this app overrated and some other less known a simpler and more effective solution.

  8. Richard Edwards-avatar

    Richard Edwards

    Just installed after being very happy with it a year or two ago. Now utter, messy, unreliable rubbish. Won't properly bench my Samsung s7 phone's external sd card anymore, write result 0.0mb/s and missing from the results or corrupted. Did an accurate bench with restart and just as bad. App started recording results then just messed everything up each time I ran it so had to uninstall. Wish I could download the old version !

  9. Mikko Rantalainen-avatar

    Mikko Rantalainen

    The UI was okay but measurement accuracy needs lots of improvement. I was expecting something like GUI for "fio", but got unspecified tests that have results that cannot be correct for my phone. This kind of app should include native libraries and use libaio and direct IO.

  10. William West-avatar

    William West

    Very confusing app and it listed my sd card three times. This app contains a huge database of sd cards. I only need mine tested. My results were 1 out of 200 or so other SD cards. I should not have to wade through test results. Not sure what developer is thinking, but this is useless for me and difficult.