# Unit Converter, 50+ Calculator vs UnitDeck

The clearest difference is update cadence: UnitDeck at every 2 weeks against Unit Converter, 50+ Calculator's every 2 months. Unit Converter, 50+ Calculator's advantage is iOS requirement (11.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Unit Converter, 50+ Calculator sells 1 one-off in-app purchase and UnitDeck sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Unit Converter, 50+ Calculator ships an update every 2 months, UnitDeck every 2 weeks. The most recent releases landed on November 1, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Unit Converter, 50+ Calculator | UnitDeck |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (52 ratings)](https://appshunter.io/ios/app/unit-converter-50-plus-calculator/id1006382972/reviews)** | — |
| Number of ratings | **52** | — |
| Positive reviews | 61.8% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 31 MB | 3 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Loopbots Technology](https://appshunter.io/developer/1384442096) | [建辉 刘](https://appshunter.io/developer/6790622804) |

## What reviewers say

### Unit Converter, 50+ Calculator

[App page](https://appshunter.io/ios/app/unit-converter-50-plus-calculator/id1006382972)

This app offers a comprehensive solution for converting various units, including currencies, measurements, and more. With over 45 converters in a single, user-friendly interface, it simplifies calculations and saves device storage. It works offline and supports over 150 international currencies.

**Highlights:** All-in-one unit conversion, 45+ free converters, Currency converter (150+ currencies), Offline functionality, User-friendly interface, App-wide search

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ad | $1.99 | one-time |


### UnitDeck

[App page](https://appshunter.io/ios/app/unitdeck-work-unit-converter/id6792440865)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| UnitDeck Pro – Lifetime | $3.99 | one-time |


## Frequently asked questions

### Is Unit Converter, 50+ Calculator free?

Unit Converter, 50+ Calculator is free to download, with in-app purchases available.

### Is UnitDeck free?

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

### Do Unit Converter, 50+ Calculator or UnitDeck have ads?

Neither Unit Converter, 50+ Calculator nor UnitDeck shows ads.

### Which is updated more often, Unit Converter, 50+ Calculator or UnitDeck?

Unit Converter, 50+ Calculator ships an update every 2 months, and UnitDeck every 2 weeks. Most recently, Unit Converter, 50+ Calculator was updated on November 1, 2026 and UnitDeck on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*