# Unit Converter vs BigDate

The clearest difference is update cadence: BigDate at every 5 days against Unit Converter's every 9 months. Unit Converter's advantage is iOS requirement (15.0 vs 18.2). On price, ads, in-app purchases and device support there is nothing between them.

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

Unit Converter ships an update every 9 months, BigDate every 5 days. The most recent releases landed on September 20, 2026 and May 16, 2026 respectively.

## The numbers

| Metric | Unit Converter | BigDate |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 5 MB | 6 MB |
| Requires iOS | **15.0** | 18.2 |
| Devices | **iPhone, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Armchair Engineering](https://appshunter.io/developer/398901339) | [David Johnson](https://appshunter.io/developer/1783793867) |

## What reviewers say

### Unit Converter

[App page](https://appshunter.io/ios/app/unit-converter-barconvert/id1518931403)

Easily convert measurements across various categories including area, currency, length, and temperature. This utility app provides quick and accurate conversions using the latest data for currencies.

**Highlights:** Area conversion, Currency conversion with latest data, Length conversion, Temperature conversion, Time conversion, Volume conversion, Weight conversion

**Features:** Vision Pro support

**In-app purchases:** none


### BigDate

[App page](https://appshunter.io/ios/app/bigdate/id6740489705)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Unit Converter free?

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

### Is BigDate free?

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

### Do Unit Converter or BigDate have ads?

Neither Unit Converter nor BigDate shows ads.

### Which is updated more often, Unit Converter or BigDate?

Unit Converter ships an update every 9 months, and BigDate every 5 days. Most recently, Unit Converter was updated on September 20, 2026 and BigDate on May 16, 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.*