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diglloydTools DiskTester

Paid#25 of 29 in Disk Benchmark Software

diglloydTools DiskTester: A deep macOS benchmark suite for storage diagnostics, testing, and review work. Ranked #25 of 29 in Disk Benchmark Software by our editors (6.0/10); pricing: Paid; best for advanced macOS storage diagnostics.

6.0/10Editor score

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diglloydTools DiskTester6.0 Visit diglloydTools

At a glance

Editor score
6.0 / 10
Pricing
Paid
Best for
Advanced macOS storage diagnostics
Free plan
No
Random I/O tests
Yes
Facts checked
22 Sep 2026

Where it wins
- Covers sequential, random I/O, IOPS, and simultaneous-stream tests
- Adds volume-filling, SSD reconditioning, reliability, and integrity testing
- Offers both graphical and command-line interfaces for technical workflows
Where it doesn't
- Runs on macOS only
- The classic software is marked deprecated and documented through macOS Ventura
- Refund requests are limited to 3 calendar days, with no refund after download

Our verdict on diglloydTools DiskTester

diglloydTools DiskTester is macOS software for evaluating hard drives, SSDs, volumes, and RAID systems. It is aimed at Mac users who need more than basic sequential speed checks, including storage testers, RAID and SATA hardware manufacturers, and performance reviewers. The product combines a graphical interface with command-line tools, making it suitable for both guided testing and repeatable technical workflows.

Its main strength is the breadth of its testing scope. DiskTester covers sequential read and write speeds, configurable random I/O transfer sizes, command-line IOPS measurement, and multiple simultaneous data streams. It also supports volume-filling and across-volume performance tests, SSD reconditioning, reliability checks, and data-integrity testing. File-reading and volume-information commands extend its use beyond benchmark charts, while graphing spreadsheets are available for selected test results. This makes it a strong fit for investigating storage behavior, comparing configurations, and identifying possible hardware or driver problems.

The product is desktop software for macOS, with email and documentation listed as support channels. Its license works in perpetuity after installation. The classic diglloydTools software is marked deprecated and documented as running through macOS Ventura, so buyers should consider their macOS version and longer-term maintenance needs before choosing it. DiskTester suits technically advanced Mac users who value detailed storage diagnostics and command-line access. Users seeking a current cross-platform tool, a free plan, or a simpler speed-only benchmark should look elsewhere.

Your product? Our editors can test diglloydTools DiskTester in depth and publish a review, labelled as paid · from $149/mo →

diglloydTools DiskTester pricing

Plans PaidPaid No free plan — trial or paid only. Prices checked 22 Sep 2026.

See plans on diglloydtools.com

diglloydTools DiskTester fact sheet

Free plan	No
Paid from	Not verified
Random I/O tests	Yes
Sequential tests	Yes
IOPS measurement	Yes
Latency measurement	Not verified
Supported platforms	macOS
Command-line interface	Yes
Money-back guarantee	3 days
Deployment	Desktop
Platforms	macOS
Support	Email, Docs
Built for	Solo, Small business, Mid-market (editorial estimate)
Pricing	Paid (source)
Website	diglloydtools.com
Facts checked	22 Sep 2026

Alternatives to diglloydTools DiskTester

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The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used diglloydTools DiskTester for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.

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Featured on iTechGuides

diglloydTools DiskTester is listed in our Disk Benchmark Software directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update