Jazz Disk Bench Pro vs Diskio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Jazz Disk Bench Pro
This tool measures storage performance for SSDs, SD cards, and internal/external drives. It provides accurate data on throughput using industry-standard testing methods for sequential speeds, random IOPS, and stress testing.
- Sequential Speed Test
- 4K Random IOPS
- Pro Stress Test
- External Storage Support
- Benchmark Details
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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.
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.
- 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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Welcome to Diskio 2.0, the ultimate disk speed testing solution for iOS, now completely redesigned and more powerful than ever. Experience Unmatched Precision: Our advanced algorithms deliver the most accurate speed tests available for all your storage devices. Trust the numbers you see—they reflect true performance. Test Any Storage Device: From your iPhone's internal storage to external drives connected via USB-C or Lightning, Diskio measures them all with laboratory-grade precision. Customized for Power Users: Tailor your tests by adjusting file size and chunk size parameters to match your specific needs. Whether you're a tech enthusiast or IT professional, get the exact insights you require. Simple Three-Step Process: 1. Select your storage location (internal or external) 2. Choose your test parameters 3. Get comprehensive results in seconds Universally Compatible: Works flawlessly with all iOS devices and external storage solutions including USB drives and SD cards. Regularly updated for the latest iOS versions. Why Diskio Matters • Identify performance bottlenecks before they impact your work • Make informed purchases when investing in new storage • Verify you're getting the speed you paid for • Monitor drive health and performance over time Download Diskio today and discover what your storage is truly capable of!
Screenshots
Verdict
The clearest difference is rating: Jazz Disk Bench Pro at 4.4 against Diskio's 3.9. Jazz Disk Bench Pro also leads on ads (none vs shown) and review sentiment (78% vs 44%). On ratings volume, update cadence, in-app purchases and monetization model 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
Jazz Disk Bench Pro costs $2.99 and Diskio $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Jazz Disk Bench Pro holds the better App Store score, 4.4 against 3.9. Both are backed by a comparable volume of ratings — 28 and 17 respectively. Written reviews point the same way: 78% of Jazz Disk Bench Pro's written reviews are positive against 44% of Diskio's.
Both ship on a similar rhythm, roughly every 5 days. The most recent releases landed on September 22, 2026 and September 24, 2026 respectively.
| Parameter | Jazz Disk Bench Pro | Diskio |
|---|---|---|
| Price | $2.99 — better | $5.99 |
| Rating | 4.4 (28 ratings) — better | 3.9 (17 ratings) |
| Positive reviews | 78.3% of reviews — better | 44.4% of reviews |
| Number of ratings | 28 — better | 17 |
| Update frequency | Every 5 days | Every 5 days |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPod |
| Requires iOS | 15.2 | 15.0 — better |
| Further details — not scored | ||
| Size | 66 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Baofeng County Jixu Education Information Consulting Co., Ltd. | Sergii Khliustin |
Customer experience
Jazz Disk Bench Pro
Diskio
In-app purchases
Jazz Disk Bench Pro
No in-app purchases
Diskio
No in-app purchases
Questions
Is Jazz Disk Bench Pro free?
Is Diskio free?
Which has better reviews, Jazz Disk Bench Pro or Diskio?
Do Jazz Disk Bench Pro or Diskio have ads?
Which is updated more often, Jazz Disk Bench Pro or Diskio?
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