# Unit Converter vs ORO CALC

The clearest difference is in-app purchases: ORO CALC at none against Unit Converter's 1. ORO CALC also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

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

Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on October 24, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Unit Converter | ORO CALC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/unit-converter-auc/id1565736843/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 4 days | Every 4 days |
| Monetization | Free with in-app purchases | — |
| Size | 48 MB | 31 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Andre Leite Barbosa Costa](https://appshunter.io/developer/984337133) | [AsiTV](https://appshunter.io/developer/1790154319) |

## What reviewers say

### Unit Converter

[App page](https://appshunter.io/ios/app/unit-converter-auc/id1565736843)

This tool offers quick and precise conversions for over 20 categories, including units of measurement and currency. Its user-friendly interface makes it ideal for students, travelers, and hobbyists needing reliable results on the go.

**Highlights:** 20+ conversion categories, Real-time currency exchange rates, Intuitive user interface, Offline conversion capability, Accurate and fast results

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads & Unlock All Themes | $4.99 | one-time |


### ORO CALC

[App page](https://appshunter.io/ios/app/oro-calc/id6759307345)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Unit Converter free?

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

### Is ORO CALC free?

ORO CALC is free to download, with no in-app purchases.

### Do Unit Converter or ORO CALC have ads?

Unit Converter shows ads; ORO CALC does not.

### Which is updated more often, Unit Converter or ORO CALC?

Unit Converter ships an update every 4 days, and ORO CALC every 4 days. Most recently, Unit Converter was updated on October 24, 2026 and ORO CALC 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.*