Lowest price: Free 2 years ago (-100%)
This utility app provides precise speed tests for all your storage devices, from internal iPhone storage to external USB drives. Customize test parameters for detailed insights and identify performance bottlenecks. It offers a simple three-step process to analyze your storage's true capabilities.
3.0.0
September 24, 2026
Diskio 3.0 brings a redesigned interface and a reworked measurement method. • Corrected speed calculations and test-file sizes. Write measurements now include final filesystem synchronization. • Choose 1, 3 or 6 runs. View median speeds, min–max values and every individual result. • Choose 6 runs to check result stability using adapted SNIA numerical criteria. This is not a full SNIA-compliant benchmark. • Share the full report with test settings and stability results. • Clearer progress, low-space warnings, improved cancellation and support for larger text and Reduce Motion. • A new icon and updated translations in all five languages. Results may differ from earlier versions because the measurement method has changed.
MoreHello, thanks for your review! In 2.0.0 we added light and dark modes support. Enjoy!
Diskio is a utility app designed to perform precise speed tests on all your storage devices, including internal iPhone storage and external drives connected via USB-C or Lightning. It helps you understand your storage's true performance.
Diskio uses advanced algorithms to deliver accurate speed tests. You can select your storage location, choose test parameters like file size and chunk size, and then get comprehensive results.
Diskio is universally compatible with all iOS devices, including iPhones and iPods, and works with external storage solutions like USB drives and SD cards.
Diskio is a paid application, priced at $5.99. This one-time purchase grants you access to its full suite of disk speed testing features.
Diskio was last updated on June 3, 2025, with version 2.1.0. It is regularly updated to ensure compatibility with the latest iOS versions and to enhance its features.
Diskio has an age rating of 4+, making it suitable for a wide range of users. This indicates it contains no mature content.
Yes, Diskio contains advertisements. As a paid application, these ads are part of the user experience.
Diskio helps you identify performance bottlenecks, make informed storage purchase decisions, verify advertised speeds, and monitor drive health over time, ensuring you get the most out of your storage.
