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Diskio: Disk & SSD Speed Test

Diskio: Disk & SSD Speed Test

Read, write & external drives

17 ratings
9 reviews
With Ads
🔧 Utilities
📊 Productivity
$5.99
With Ads

Lowest price: Free 2 years ago (-100%)

Price history

Details

Released
October 2, 2023
Updated
October 9, 2026

Features

Developer

Sergii Khliustin
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About

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.

✓Precise disk speed testing
✓Tests internal and external storage
✓Customizable test parameters
✓Simple three-step process
✓Universally compatible with iOS devices
✓Identifies performance bottlenecks
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What's New in Diskio

3.1.0

October 9, 2026

• An adaptive layout for iPhone Duo gives test controls and results their own space. • Your report and open panels remain available as the layout changes, while narrow windows stay compact. • Improved handling when you leave or return to Diskio.

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User reviews

Most RecentHighest RatedLowest Rated

Wolf

Super!
PPerfektwolf

Response from developer

Schön, dass dir Diskio gefällt! Vielen Dank für deine Bewertung.

垃圾软件，每次结果都不准

和其他软件差天上去去啦
Kkun.she

Response from developer

抱歉之前的体验让您失望了。我们在 3.0 版中修正了速度计算和测试文件大小，写入计时也包含了最终的文件系统同步。建议更新到最新版 3.0.1 后再试。如果仍与其他工具相差很大，请将测试报告、设备型号、外接存储型号（如有）及对比工具名称发送至 buildioapps@gmail.com，方便我们结合具体测试方式核查。

每次测试数值差很多，这是不是不准啊

每次测试数值差很多，这是不是不准啊
内内存大大的

Response from developer

感谢反馈，也抱歉这些波动给您造成了困扰。3.0 版改进了测量方法，并新增了 6 次测试和结果稳定性评估。建议更新到最新版 3.0.1，在设置中选择测试 6 次，查看速度中位数、每次结果和“结果稳定性”。这能帮助了解波动，但不保证每次结果相同。若仍有明显差异，请将测试报告和设备信息发送至 buildioapps@gmail.com，方便我们进一步核查。

Чудова апка

Натхнення вам)
ІМІван Маковійчук

Response from developer

Щиро дякую за підтримку й теплі побажання! Дуже приємно, що Diskio став у пригоді.

Needs Dark mode

Other than that, needs dark mode as my phone is on it but the app opens it in light.
LLeoCronis

Response from developer

Hello, thanks for your review! In 2.0.0 we added light and dark modes support. Enjoy!

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FAQ

What is Diskio?

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.

How does Diskio test disk speed?

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.

What devices does Diskio support?

Diskio is universally compatible with all iOS devices, including iPhones and iPods, and works with external storage solutions like USB drives and SD cards.

How much does Diskio cost?

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.

How often is Diskio updated?

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.

What is the age rating for Diskio?

Diskio has an age rating of 4+, making it suitable for a wide range of users. This indicates it contains no mature content.

Does Diskio have ads?

Yes, Diskio contains advertisements. As a paid application, these ads are part of the user experience.

What are the benefits of using Diskio?

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.