A1 SD Bench APK

Rating: 12K+ votes, 4.2/5

*** IMPORTANT - If your SD card is not detected, please send us your model and SD card location, before giving a rating...[read more]

Apps, Tools
1.5 MB

Download APK (1.5 MB)

This is an original APK file direct fetch from google play. It is safe to download and free of any virus.

File Infos

Size‎1.5 MB
File Namecom.a1dev.sdbench-v2.6.2.apk
Requires Android VersionAndroid 4.0+ (Ice Cream Sandwich)
Package Namecom.a1dev.sdbench
Author's NotesBenchmark SD card to test IO read / write speed and check media performance.

Certificate fingerprints (Signature):

SHA-1: C8093E655A2373799E8151AD8904E48EF6507A9D
SHA-256: A89B761A4A7E8F59640A63CECD877525E151EFD1755DB5E7472E6C317B8AE610
The cryptographic signature guarantees the file is safe to install and was not tampered with in any way.

File hashes:

MD5: CC905DF33698434921B3CDF5590BC40E
SHA-1: DFA1A9561DB12841F1C26D84993BD01A050C4F17
SHA-256: C22AE79633F280BFC22B141107A9A77FC73CA14906C44230172287394825BD8D
Verify the file you downloaded is not corrupt and was not tampered with using the file hashes above.

Application Permissions


Screenshots (3 pics)

Screenshot 01Screenshot 02Screenshot 03

About A1 SD Bench APK

A1 SD Bench APK Download for Android
A1 SD Bench APK Download for Android

Latest updates

What's new in version 2.6.2

Bug fixes.
Changes to be GDPR compliant.


*** 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 I/O and Accurate) and check media performance, and compare your benchmark results online.

★ Free
★ Four benchmark modes - Quick, Longer, Accurate and Random I/O
★ 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.com/feedback/
• 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. /mnt/sdcard/, /mnt/usb_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.com/sd-bench/notes/

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).

User's Reivew

5 ★ This new version is very good, giving an interesting look into an underrated phone. Internal speeds are greater than expected given ratings onAmazon. Com. Looking forward to my review. We'll done. Worthy of adonation! Cheers!! The insistence upon /sd2/ path is erronious because theinternal, undemountable flash for media is capable of testing, sorry, nolonger useful. Uninstalled. Update. Moto E4 Verizon which had the externalmemory "cached" blocking use? Developers access, bingo, successful run.Verizon screws with memory use, apps also should go there just because.by Anonymous on April 27, 2018
2 ★ Installed on a Samsung SM-T580, tested and then wiped that tablet clean, factory reset. Gifted that tablet to a friend. Bought an ASUS ZenPad 3s Z500M. Tested same mem card on new tablet and it reports the results as being done on a Samsung SM-T580. Uninstalled / reinstalled same issue. WRONG TABLET listed!!!by Michael Honn on December 15, 2017
1 ★ Absolut rubbish on Samsung S3 anyway. I tried to measure the speed of samsung pro + 64gb its not showing me anything. The internal memory the same. Waste of time.by Adam Goldsmith on December 14, 2017
4 ★ Nice, it seems to be accurate for most parts, BUT.. when I ran the three main "ADVANCED TEST METHODS ("Longer", "Random" and "Accurate") in the "A1 SD BENCH" on the internal storage in the latest Minix Android TV Box with the main "Accurate" method, it consistently rendered NEARLY DOUBLE AS FAST Read and Write speed ratings than the other two Advanced Method. So I tested it with a new/out-of-the-box Sandisk Extreme Pro 64 GB 100MB/s Micro SD with "A1 SD Bench"on the same device, as well as tests on a late model MacBook Pro, running two different advance benchmark apps ("Blackmagic" and "AJA "), and ALL THE BENCHMARK TESTS WERE NEARLY THE SAME ON BOTH DEVICES WITH ALL THREE BENCH MARK APPS, WITH THE ONLY EXCEPTION OF "A1 SD BENCH" running the "ADVANCED" TEST OPTION! I repeated the process several more times, both with cold/warm boots. Please advise, cause I believe it deserves a five stars otherwise.by Casey McAdam on January 15, 2018
5 ★ Thanks! With this app I found my SD card only writes at 3MBps but the readspeed is literally 800MBPS while my phone's storage has 300MBPS write speedand 500MBPS read speed.by Scourge on May 09, 2018
1 ★ dont see the point you cant choose the card capacity only gives you few options not sure if there is a premium section of the app that you may have to pay but the basic settings dont waste your timeby Anonymous on January 12, 2018
5 ★ Finally a worthy app I tested my SD card ush1 class 10 with it and the result wass accurate But sadly I couldn't share this app to my friends it's not translated into Arabic language Wich they are speaking.by Mohi Salem on March 08, 2018
1 ★ The test ran, but produced no results. What good is that? Useless.by Paul Pedersen on April 28, 2018
5 ★ Well i was expecting the usual AD loaded app .. havent seen any yet! Thisdoes exactly what you want.. tests all memory in a clean, easy tounderstand way .. it even finds comparative results from the same phonebrands.. really liked it!by Robert Anderson on April 28, 2018
1 ★ Not accurate on newer phones. Card has a physical interface limit of 100 MB/sec but the test reports well over that on new phones.by Gary Obadal on January 20, 2018

How to install A1 SD Bench APK on Android phone or tablet?

Download A1 SD Bench APK file from ApkClean.com, then follow these steps:

Update Phone Settings

  • Go to your phone Settings page
  • Tap Security or Applications (varies with device)
  • Check the Unknown Sources box
  • Confirm with OK

Go to Downloads

  • Open Downloads on your device by going to My Files or Files
  • Tap the APK file you downloaded (com.a1dev.sdbench-v2.6.2.apk)
  • Tap Install when prompted, the APK file you downloaded will be installed on your device.

See more (full steps with pictures)

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