SD speed test tool! Detect fake SD Card! Don't lose your footage to a bad card!
SD Card Test is a focused storage benchmarking tool that measures read/write speeds for internal and external storage, including SD cards, and helps detect fake cards to protect footage. It has a broad user base with 1,000,000+ total downloads and a rating of 3.88 from 7,111 reviews, reflecting steady adoption over its 3466-day market presence.
Pros & Cons
Specializes in SD and storage speed testing for quick, actionable results
Supports testing on both internal and external storage
Shows storage type, class, and file system support for informed comparisons
Free to use and feature-rich for a dedicated storage benchmarking tool
Lacks broader device optimization features some competitors advertise (e.g., extensive file management or transfer tools)
Performance results depend on the device hardware and card quality, which can vary widely across models
No explicit privacy controls beyond standard permissions noted in app description (privacy details not provided)
About SD Card Test
SD Card Test is a tools app developed by Zoltán Pallagi.
Download Statistics
SD Card Test has been downloaded 1.9 million times. In the last 30 days, the app was downloaded 14 thousand times.
User Ratings
SD Card Test is rated 3.89 out of 5 stars. The rating is based on 7.2 thousand ratings.
App Information
SD Card Test is FREE to download. The APK download size is 5.31 MB. The latest version available is 3.6. The last update was on May 14, 2026.
Technical Requirements
SD Card Test requires Android 6.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play January 2017.
Description
Use the best SD speed test tool! Test the speed of internal or external storage, sd card!
Highlighted features: ✔ Measure the speed of your external (removable) SD card ✔ Measure the speed of your internal storage or any disks ✔ Read/write tests using several different combinations. ✔ Show storage type: eMMC, UFS 2.0 and 2.1 or higher ✔ Show class: Class 2, Class 4, Class 6, Class 10, UHS-I, UHS-II and UHS-III ✔ Supporting several file systems like ext4, exFAT or FAT/FAT32. ✔ Support portable and adoptable storage as well ✔ Show storage details: free space, total space, mount options, device name
Supported memory cards: * Basically any sd cards: Micro SD, SDHC and SDXC * built-in memory (card)
Good to know: ✔ 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.
Note: if you measure slow speed, this is not the fault of the app. This is the reality of your phone. Common reasons: fake sd card, slow sd card reader/hardware problems of the phone, software problems.
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Can test external storage I wanted to test the speed off an external ssd and this was the only ones I found that could do it. You first have to find the drive and select that folder and grant usb storage permission. The only app I found that could do it.
★★★★☆Yurie 「ユリエ」· Dec 29, 2024
Good app and can customize the test file size but verify card if fake is behind pr over.
★★★★☆sc CBR 650R, RTR 200 rider· Sep 8, 2024
Very good all devices speed test 👍👍💯💯🏍️🏍️🏍️🏍️🏍️👍👍🇮🇳🇮🇳 👍🤔🤔🙄🙄🧐🧐🧐🤔🙄🧐🤔🙄🧐🤔🙄🙄🙄🙄🙄🙄🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐🧐
★☆☆☆☆Justin Durham· Jan 7, 2026
*DANGER APP PLAYS UNSKIPPABLE AD DURING TEST, FORCE CLOSING CAN CORRUPT DATA. Detailed interface. All the info one could need. I have one of the little micros to usb c adapters. It detected my card and displayed all available info. The write-test was a success. HOWEVER. The app launched an AD DURING the read-test. Understandable that a free app would have ads. The ad ruined the first read-test. So I tried the test again. Only for the app to launch another ad!
★☆☆☆☆Cristi Neko· Apr 7, 2026
You have hundreds of "legitimate interest" you need to manually turn off or else you give permission for them to access everything on your phone, despite you did not, but you did not know you did and will never find out which of them was since they just share it with their other partner and repeat the process.
★☆☆☆☆Evelyn Jorgensen· Jun 6, 2026
Won't do the test to detect fake storage space unless you pay for the premium version.
Google Play Rankings for SD Card Test
This app is not ranked
Technologies used by SD Card Test
12 permissions·24 libraries
Subscribe to see full permission and library details
Trust & Safety: Requires storage and network permissions (READ_EXTERNAL_STORAGE, WRITE_EXTERNAL_STORAGE, INTERNET, FOREGROUND_SERVICE) and ad-related identifiers. These permissions are typical for a storage benchmarking tool and align with standard Android platform practices; no unusual or unnecessary permissions are listed.
Each subscription will automatically renew 3 days before the expiration date for
the same time period. Subscriptions can be cancelled at any time before the renewal.
