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A1 SD Bench for Android

By Tuxera Inc. Free

Developer's Description

*** 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.



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

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 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).

Full Specifications

What's new in version 2.6.2


Release March 23, 2020
Date Added March 23, 2020
Version 2.6.2

Operating Systems

Operating Systems Android
Additional Requirements Requires Android 4.0 and up


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