Jazz Disk Bench Pro vs Fill Storage Pro
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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Measure storage performance with Jazz Disk Bench. Run a disk speed test on your device's internal storage or a supported external USB drive, then explore read and write speeds, random 4K performance and latency. UNDERSTAND YOUR STORAGE • Sequential read and write tests show performance when transferring large files. • Random 4K tests measure small-block performance in IOPS and MB/s. • Latency tests show how long read and write operations take. • Choose the test size and operation count to suit your storage benchmark. WATCH SUSTAINED WRITE SPEED Run a stress test and follow the write-speed chart as data is written. See how performance changes during a longer workload instead of relying only on a single peak speed. COMPARE DEVICE RESULTS Browse the results database and compare two devices side by side. Select results from the database or your own benchmark history to examine the differences. TEST INTERNAL AND EXTERNAL STORAGE Test internal storage by default, or choose a writable folder on supported USB drives and SD cards. KEEP YOUR RESULTS Save completed benchmarks in your history and return to their detailed results later. No account is required.
Fill Storage Pro
This utility app helps users simulate low storage conditions for testing or securely erase deleted data by filling device storage with dummy files. It offers customizable filling options and easy cleanup.
- Low storage simulation for testing
- Securely overwrite deleted data
- Customizable storage filling (fixed sizes/percentage)
- One-tap cleanup of generated files
- Ideal for developers and testers
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Fill Storage Pro is a must-have tool for iOS developers, testers, and users who need to simulate low storage conditions or securely erase deleted data. Key Features: ■ Low Storage Simulation for Testing ‣ Ideal for developers and testers to check how apps behave when storage is almost full. ■ Secure Data Erasure ‣ Fills storage with dummy files to overwrite deleted data, preventing recovery. ■ Customizable Storage Filling ‣ Fixed Sizes: 100MB, 1GB, 5GB ‣ Percentage-Based: 30%, 60%, 90% ■ Easy Cleanup ‣ All generated files can be deleted instantly with a single tap. Who Can Benefit? ‣ iOS Developers & Testers – Ensure apps function properly in low-storage conditions. ‣ Privacy-Conscious Users – Prevent deleted data from being recovered. ‣ Anyone Needing Storage Control – Experiment with storage management easily. Whether you're testing app performance or securely erasing data, Fill Storage Pro provides a simple and effective solution. Download now and take control of your storage!
Screenshots
Verdict
The clearest difference is price: Fill Storage Pro at Free against Jazz Disk Bench Pro's $2.99. Fill Storage Pro also leads on rating (5.0 vs 4.5). Jazz Disk Bench Pro's advantage is ads (none vs shown) and update cadence (every 5 days vs every 2 months). 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
Fill Storage Pro is free to download; Jazz Disk Bench Pro costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Fill Storage Pro holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Jazz Disk Bench Pro has 30 ratings behind it against 1, so its average is the more settled of the two.
Jazz Disk Bench Pro ships an update every 5 days, Fill Storage Pro every 2 months. The most recent releases landed on October 24, 2026 and October 15, 2026 respectively.
| Parameter | Jazz Disk Bench Pro | Fill Storage Pro |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 4.5 (30 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 79.2% of reviews | — |
| Number of ratings | 30 — better | 1 |
| Update frequency | Every 5 days — better | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Paid | Ad-supported — better |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 22 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Baofeng County Jixu Education Information Consulting Co., Ltd. | Arum Communications Corp. |
Customer experience
Jazz Disk Bench Pro
Fill Storage Pro
In-app purchases
Jazz Disk Bench Pro
No in-app purchases
Fill Storage Pro
No in-app purchases
Questions
Is Jazz Disk Bench Pro free?
Is Fill Storage Pro free?
Which has better reviews, Jazz Disk Bench Pro or Fill Storage Pro?
Do Jazz Disk Bench Pro or Fill Storage Pro have ads?
Which is updated more often, Jazz Disk Bench Pro or Fill Storage Pro?
Other comparisons
