
Drive Capacity Tester
Verify SD Cards And USB Drives
Only for Mac
Free · In‑App Purchases
Mac
If you are looking for a new storage medium, you will quickly find surprisingly good offers on well known websites. However, these storage media are often devices that offer significantly less storage space than specified by the manufacturer.
This is achieved by changing the firmware, which causes the operating system to assume that, for example, two terabytes are available - but in reality only 32 GB can be written.
Drive Capacity Tester can verify the manufacturer's specified size of USB sticks and SD cards. Counterfeit storage media can be found quickly.
Drive Capacity Tester offers the following features:
• Verifying USB sticks
USB sticks can be verified.
• Verifying SD cards
SD cards can also be verified.
• Progress indicator
The current progress is displayed. There is also a display of the remaining time.
• Simultaneous testing
Several drives can be verified at once (this function is only available in the Pro version).
• Resume a test
Is your storage medium very large? Don't want to leave the computer running overnight? No problem! Simply continue the test you have started later (this function is only available in the Pro version).
The app icon was designed by Hugo Santos. You can find more information about my app icons here:
http://icons.sascha-simon.com
You can find more great apps on my homepage:
https://www.sascha-simon.com
If you enjoy using this app, please leave a positive review. Positive reviews help other users discover the app and are a source of inspiration for me to further develop the app.
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This update contains bug fixes and improves the stability of the app.
The developer, Sascha Simon, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer indicated that this app doesn’t support certain accessibility features. Learn More about the accessibility features.
Information
- Seller
- Sascha Simon
- Size
- 9 MB
- Category
- Utilities
- Compatibility
Requires macOS 15.0 or later.
- Mac
Requires macOS 15.0 or later.
- Languages
English and 9 more
- English, French, German, Hindi, Italian, Japanese, Portuguese, Russian, Simplified Chinese, Spanish
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Drive Capacity Tester Pro $1.99
- Copyright
- © 2022-2026 Sascha Simon