Comparison

Diskio vs SSD Performance Test

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Diskio

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.

Highlights
  • Precise disk speed testing
  • Tests internal and external storage
  • Customizable test parameters
  • Simple three-step process
  • Universally compatible with iOS devices
  • Identifies performance bottlenecks
Features
Read full description

How fast is your storage? Measure sequential read and write speeds on your iPhone or a compatible external drive. Go beyond one number with repeat runs and a detailed report. SEE THE WHOLE RESULT Choose 1, 3 or 6 runs. With 3 or 6 runs, see median read and write speeds, minimum and maximum values, and the result of every run. CHECK CONSISTENCY Choose 6 runs to assess read and write stability separately over the last five. See whether results are stable or vary, with the criteria explained in the app. TEST YOUR SETUP Use your iPhone's internal storage or select a compatible, writable external drive through Files. Choose a test file from 1 to 5 GiB and a block size of 1, 2, 4, 8 or 16 MiB. The defaults are 6 runs, a 1 GiB file and a 2 MiB block. UNDERSTAND THE MEASUREMENT Diskio 3.0 reworks the speed calculation and test-file sizing. Speeds are shown in MB/s, and write timing includes final filesystem synchronization. Follow each write and read phase as the test runs. SHARE THE DETAILS Send a result card with the full report, test settings and, after 6 runs, the stability assessment. The redesigned interface supports light and dark appearances, larger text and Reduce Motion. GET STARTED 1. Select your storage and test settings. 2. Start the test and keep Diskio open. 3. Review the report or share your results. A test needs enough free space for a temporary file. External storage must be accessible and writable through Files. Results depend on the device, storage, connection, free space and test settings. The stability assessment adapts numerical criteria from SNIA SSS PTS. It is not a full SNIA-compliant benchmark, a drive-health check or a sustained-performance rating. Measurements in version 3.0 may differ from earlier versions because the method has changed.

About

SSD Performance Test

Read full description

Measure your SSD's speed with precision using the SSD Performance Test app. Designed for professionals and tech enthusiasts, this app offers: Accurate Benchmarking: Test read/write speeds to evaluate real SSD performance. User-Friendly Interface: Easy-to-use design for quick testing. Detailed Results: View comprehensive performance metrics. Perfect for developers, gamers, and anyone optimizing storage performance. Test your SSD's true capabilities today!

Screenshots

Diskio4 screens
SSD Performance Test4 screens

Verdict

The call

The clearest difference is price: SSD Performance Test at Free against Diskio's $5.99. SSD Performance Test also leads on ads (none vs shown) and device support (3 vs 1). On in-app purchases and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

SSD Performance Test is free to download; Diskio costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard3 real differences · 7 level
Diskio versus SSD Performance Test: the parameters behind the verdict, then further details
ParameterDiskioSSD Performance Test
Price$5.99Free — better
Rating3.9 (17 ratings) — better—
Positive reviews44.4% of reviews—
Number of ratings17 — better—
Update frequencyWeekly—
AdsYesNo — better
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.015.6 — better
Further details — not scored
Size10 MB20 MB
Age rating4+4+
DeveloperSergii KhliustinMD HUSAIN FARUK

In-app purchases

None

Diskio

No in-app purchases

None

SSD Performance Test

No in-app purchases

Questions

Is Diskio free?
Diskio costs $5.99, with no in-app purchases.
Is SSD Performance Test free?
SSD Performance Test is free to download, with no in-app purchases.
Do Diskio or SSD Performance Test have ads?
Diskio shows ads; SSD Performance Test does not.

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