# File Size Converter vs ZZZ FlashShare

The clearest difference is in-app purchases: ZZZ FlashShare at none against File Size Converter's 3. ZZZ FlashShare also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price, update cadence and ads there is nothing between them.

Both are free to download. File Size Converter sells 3 in-app purchases, starting at $2.99 per 7 days. ZZZ FlashShare asks for nothing beyond the download.

File Size Converter ships an update monthly, ZZZ FlashShare every 5 weeks. Both last shipped on October 28, 2026.

## The numbers

| Metric | File Size Converter | ZZZ FlashShare |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 weeks |
| Size | 5 MB | 27 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Phuc Pham](https://appshunter.io/developer/1893081423) | [SMOLT STAGE, K.K.](https://appshunter.io/developer/1708601451) |

## What reviewers say

### File Size Converter

[App page](https://appshunter.io/ios/app/file-size-converter/id6772165773)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Binary Units · Weekly | $2.99 | per 7 days |
| Disk Capacity · Yearly | $14.99 | per year |
| Download Time · Pay Once | $29.99 | one-time |


### ZZZ FlashShare

[App page](https://appshunter.io/ios/app/zzz-flashshare/id6779496852)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is File Size Converter free?

File Size Converter is free to download, with in-app purchases available.

### Is ZZZ FlashShare free?

ZZZ FlashShare is free to download, with no in-app purchases.

### Do File Size Converter or ZZZ FlashShare have ads?

Neither File Size Converter nor ZZZ FlashShare shows ads.

### Which is updated more often, File Size Converter or ZZZ FlashShare?

File Size Converter ships an update monthly, and ZZZ FlashShare every 5 weeks. Most recently, File Size Converter was updated on October 28, 2026 and ZZZ FlashShare on October 28, 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.*