About Jazz Disk Bench Pro
Jazz Disk Bench is a pro-grade storage performance measurement tool designed for SSDs, SD cards, and internal/external storage. Get accurate data on your device's throughput with industry-standard testing methods. Key...
Jazz Disk Bench is a pro-grade storage performance measurement tool designed for SSDs, SD cards, and internal/external storage. Get accurate data on your device's throughput with industry-standard testing methods. Key Features: * Sequential Speed Test: Measure peak performance for copying large files (movies, games, etc.). * 4K Random IOPS: Evaluate system responsiveness. Low random performance is often the root cause of device lag. * Pro Stress Test: Push your storage to the limit with 2GB-100GB tests to check stability and "real" NAND speed after cache exhaustion. * External Storage Support: Fully compatible with USB drives and SD cards via custom folder selection. Benchmark Details: * Sequential Test: Reads/writes 16MB blocks sequentially. Perfect for testing raw transfer speeds. * Random Test (4K): Reads/writes 4KB blocks at random locations. This reflects how fast your OS launches apps and handles small files. * Stress Test: Sequentially writes massive data (up to 100GB). Ideal for pro users to test SLC cache size and sustained NAND write performance. Note: For external storage tests, ensure a stable connection and write permissions.
Version History Optimized for iOS 26 and bug fixes. 7.1.0 Mar 18 External storage permission fix 7.0.2 03/01/2024 *Bug fixes *Fix Chinese language support 7.0.0 01/07/2024 Compare button color fix. 6.5.1 12/05/2022 Compare button color fix. 6.5.0 12/03/2022 Temporary hide language setting due to bug of language switch. Support memory cache detect. Fix the bug that some button text are not readable when in dark mode. 6.4.1 11/21/2022 Dark mode optimization. Add Chinese language support. 6.4.0 11/20/2022 Support compare between different devices! 6.2.0 11/17/2022 Add update button on benchmark results page. 6.1.0 11/13/2022 Results browser is supported now! 6.0.0 11/11/2022 *Add storage capacity info *More accurate model info *Allow submit benchmarks to server 5.7.1 11/11/2022 * iOS 16.1 support. * UI Optimization for iPadOS when used in window mode 5.6.0 11/06/2022 * Add phone model info * Fix crash on some devices * Update tab icon * External storage benchmark optimization 5.4.0 09/28/2022 *Benchmark for external storage is now supported. 5.2.0 09/21/2022 *New tabbed design for easier use *New Stress test(2-100GB): test stability of storage and the speed of SSD after cache is used up. *Bug fix. 5.0.2 09/19/2022 *New tabbed design for easier use *New Stress test(2-100GB): test stability of storage and the speed of SSD after cache is used up. 5.0 09/18/2022 Bug fix. 3.0.6 08/12/2022 Bug fix. 3.0.5 08/09/2022 Add support for IOS 15 Native support for M1 chips. 3.0.1 05/30/2022 1.iPhone X/XS/XS Max/XR support 2.Optimize 4k test 3.Remove score 2.0 02/14/2019 1.0.1 10/21/2017
Previous Versions
Here you can find the changelog of Jazz Disk Bench Pro since it was posted on our website on 2024-05-01 06:46:35.
The latest version is 7.1.0 and it was updated on 2026-06-24 03:03:28. See below the changes in each version.
Jazz Disk Bench Pro version 7.1.0
Updated At: 2026-06-03
Changes: Version History Optimized for iOS 26 and bug fixes. 7.1.0 Mar 18 External storage permission fix 7.0.2 03/01/2024 *Bug fixes
*Fix Chinese language support 7.0.0 01/07/2024 Compare button color fix. 6.5.1 12/05/2022 Compare button color fix. 6.5.0 12/03/2022 Temporary hide language setting due to bug of language switch.
Support memory cache detect.
Fix the bug that some button text are not readable when in dark mode. 6.4.1 11/21/2022 Dark mode optimization.
Add Chinese language support. 6.4.0 11/20/2022 Support compare between different devices! 6.2.0 11/17/2022 Add update button on benchmark results page. 6.1.0 11/13/2022 Results browser is supported now! 6.0.0 11/11/2022 *Add storage capacity info
*More accurate model info
*Allow submit benchmarks to server 5.7.1 11/11/2022 * iOS 16.1 support.
* UI Optimization for iPadOS when used in window mode 5.6.0 11/06/2022 * Add phone model info
* Fix crash on some devices
* Update tab icon
* External storage benchmark optimization 5.4.0 09/28/2022 *Benchmark for external storage is now supported. 5.2.0 09/21/2022 *New tabbed design for easier use
*New Stress test(2-100GB): test stability of storage and the speed of SSD after cache is used up.
*Bug fix. 5.0.2 09/19/2022 *New tabbed design for easier use
*New Stress test(2-100GB): test stability of storage and the speed of SSD after cache is used up. 5.0 09/18/2022 Bug fix. 3.0.6 08/12/2022 Bug fix. 3.0.5 08/09/2022 Add support for IOS 15
Native support for M1 chips. 3.0.1 05/30/2022 1.iPhone X/XS/XS Max/XR support
2.Optimize 4k test
3.Remove score 2.0 02/14/2019 1.0.1 10/21/2017
Jazz Disk Bench Pro version 7.1.0
Updated At: 2026-03-18
Changes: Optimized for iOS 26 and bug fixes.
Jazz Disk Bench Pro version 7.0.2
Updated At: 2024-03-01
Changes: Mar 1, 2024
Version 7.0.2
bug fix
Jazz Disk Bench Pro version 7.0.2
Updated At: 2024-03-01
Changes: External storage permission fix
Disclaimer
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