# Jazz Disk Bench Pro vs Fill Storage Pro

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.

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.

## The numbers

| Metric | Jazz Disk Bench Pro | Fill Storage Pro |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [4.5 (30 ratings)](https://appshunter.io/ios/app/jazz-disk-bench-pro/id1298441490/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fill-storage-pro/id6755057653/reviews)** |
| Number of ratings | **30** | 1 |
| Positive reviews | 79.2% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 5 days** | Every 2 months |
| Monetization | Paid | **Ad-supported** |
| Size | 22 MB | 13 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Baofeng County Jixu Education Information Consulting Co., Ltd.](https://appshunter.io/developer/1298441489) | [Arum Communications Corp.](https://appshunter.io/developer/1851627253) |

## What reviewers say

### Jazz Disk Bench Pro

[App page](https://appshunter.io/ios/app/jazz-disk-bench-pro/id1298441490)

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.

**Highlights:** Sequential Speed Test, 4K Random IOPS, Pro Stress Test, External Storage Support, Benchmark Details

**Features:** Vision Pro support

**In-app purchases:** none


### Fill Storage Pro

[App page](https://appshunter.io/ios/app/fill-storage-pro/id6755057653)

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.

**Highlights:** 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

**In-app purchases:** none


## Frequently asked questions

### Is Jazz Disk Bench Pro free?

Jazz Disk Bench Pro costs $2.99, with no in-app purchases.

### Is Fill Storage Pro free?

Fill Storage Pro is free to download, with no in-app purchases.

### Which has better reviews, Jazz Disk Bench Pro or Fill Storage Pro?

Fill Storage Pro is rated higher. Jazz Disk Bench Pro averages 4.5 out of 5 from 30 ratings, while Fill Storage Pro averages 5.0 from 1 ratings.

### Do Jazz Disk Bench Pro or Fill Storage Pro have ads?

Fill Storage Pro shows ads; Jazz Disk Bench Pro does not.

### Which is updated more often, Jazz Disk Bench Pro or Fill Storage Pro?

Jazz Disk Bench Pro ships an update every 5 days, and Fill Storage Pro every 2 months. Most recently, Jazz Disk Bench Pro was updated on October 24, 2026 and Fill Storage Pro on October 15, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*