# U+SASE vs Fill Storage Pro

The clearest difference is ads: U+SASE at none against Fill Storage Pro's shown. U+SASE also leads on update cadence (every 3 weeks vs every 2 months) and device support (3 vs 1). On price, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

U+SASE ships an update every 3 weeks, Fill Storage Pro every 2 months. Both last shipped on October 30, 2026.

## The numbers

| Metric | U+SASE | Fill Storage Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fill-storage-pro/id6755057653/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | — | Ad-supported |
| Size | 38 MB | 13 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [LG Uplus](https://appshunter.io/developer/372558480) | [Arum Communications Corp.](https://appshunter.io/developer/1851627253) |

## What reviewers say

### U+SASE

[App page](https://appshunter.io/ios/app/u-plus-sase/id6743826004)

**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 U+SASE free?

U+SASE is free to download, with no in-app purchases.

### Is Fill Storage Pro free?

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

### Do U+SASE or Fill Storage Pro have ads?

Fill Storage Pro shows ads; U+SASE does not.

### Which is updated more often, U+SASE or Fill Storage Pro?

U+SASE ships an update every 3 weeks, and Fill Storage Pro every 2 months. Most recently, U+SASE was updated on October 30, 2026 and Fill Storage Pro on October 30, 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.*