GravityMark GPU Benchmark vs Diskio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GravityMark GPU Benchmark
This app showcases modern GPU power by rendering vast real-time scenes. It offloads all scene management and rendering to the GPU, bypassing CPU bottlenecks. Recommended for devices with Apple A14+ and M1+ SoCs.
- Real-time GPU rendering
- Massive object quantity
- GPU-accelerated scene management
- Bypasses CPU bottlenecks
- Utilizes astronomical data
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GravityMark GPU Benchmark demonstrates the capabilities of modern GPUs by rendering an enormous quantity of objects in real-time, utilizing GPU acceleration. We avoid typical CPU-based performance bottlenecks by delegating the entirety of scene management and rendering steps exclusively to the GPU. Apple A14+ and M1+ SoC are recommended for great results. The following resources are used in the benchmark: NASA visible Earth database, GEBCO 2020 grid, the HYG star database archive, ESO / Serge Brunier The Milky Way panorama.
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 price: GravityMark GPU Benchmark at Free against Diskio's $5.99. GravityMark GPU Benchmark also leads on ads (none vs shown) and rating (4.2 vs 3.9). Diskio's advantage is update cadence (every 5 days vs every 4 months). On review sentiment, ratings volume, in-app purchases and device support 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
GravityMark GPU Benchmark is free to download; Diskio costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.
GravityMark GPU Benchmark holds the better App Store score, 4.2 against 3.9. Both are backed by a comparable volume of ratings — 6 and 17 respectively. Written reviews split almost evenly too, at 44% and 44% positive.
GravityMark GPU Benchmark ships an update every 4 months, Diskio every 5 days. The most recent releases landed on July 22, 2026 and September 24, 2026 respectively.
| Parameter | GravityMark GPU Benchmark | Diskio |
|---|---|---|
| Price | Free — better | $5.99 |
| Rating | 4.2 (6 ratings) — better | 3.9 (17 ratings) |
| Positive reviews | 44.4% of reviews | 44.4% of reviews |
| Number of ratings | 6 | 17 — better |
| Update frequency | Every 4 months | Every 5 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 91 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Tellusim Technologies Inc. | Sergii Khliustin |
Customer experience
GravityMark GPU Benchmark
Diskio
In-app purchases
GravityMark GPU Benchmark
No in-app purchases
Diskio
No in-app purchases
