# Unit Converter Simple vs IceVault

The clearest difference is in-app purchases: Unit Converter Simple at none against IceVault's 1. Unit Converter Simple also leads on iOS requirement (13.0 vs 26.2). IceVault's advantage is ads (none vs shown) and update cadence (monthly vs every 10 months). On price and device support there is nothing between them.

Both are free to download. IceVault sells 1 one-off in-app purchase. Unit Converter Simple asks for nothing beyond the download.

Unit Converter Simple ships an update every 10 months, IceVault monthly. The most recent releases landed on October 8, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Unit Converter Simple | IceVault |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 10 months | **Monthly** |
| Size | 18 MB | 8 MB |
| Requires iOS | **13.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kouji Yamauchi](https://appshunter.io/developer/1519365107) | [Kouichi Abe](https://appshunter.io/developer/295852950) |

## What reviewers say

### Unit Converter Simple

[App page](https://appshunter.io/ios/app/unit-converter-simple/id1531846614)

**Features:** macOS Compatibility

**In-app purchases:** none


### IceVault

[App page](https://appshunter.io/ios/app/icevault-encrypted-database/id1661418945)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| IceVault Pro | $24.99 | one-time |


## Frequently asked questions

### Is Unit Converter Simple free?

Unit Converter Simple is free to download, with no in-app purchases.

### Is IceVault free?

IceVault is free to download, with in-app purchases available.

### Do Unit Converter Simple or IceVault have ads?

Unit Converter Simple shows ads; IceVault does not.

### Which is updated more often, Unit Converter Simple or IceVault?

Unit Converter Simple ships an update every 10 months, and IceVault monthly. Most recently, Unit Converter Simple was updated on October 8, 2026 and IceVault on October 14, 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.*