# Unit Converter, 50+ Calculator vs d.Hub Forms

The clearest difference is in-app purchases: d.Hub Forms at none against Unit Converter, 50+ Calculator's 1. d.Hub Forms also leads on update cadence (every 3 weeks vs every 2 months). Unit Converter, 50+ Calculator's advantage is iOS requirement (11.0 vs 16.4). On price, ads and device support there is nothing between them.

Both are free to download. Unit Converter, 50+ Calculator sells 1 one-off in-app purchase. d.Hub Forms asks for nothing beyond the download.

Unit Converter, 50+ Calculator ships an update every 2 months, d.Hub Forms every 3 weeks. The most recent releases landed on October 24, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Unit Converter, 50+ Calculator | d.Hub Forms |
| --- | --- | --- |
| 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 | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 31 MB | 60 MB |
| Requires iOS | **11.0** | 16.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Loopbots Technology](https://appshunter.io/developer/1384442096) | [Ove Arup & Partners International Ltd](https://appshunter.io/developer/501648778) |

## 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 |


### d.Hub Forms

[App page](https://appshunter.io/ios/app/dhub-forms/id6742437742)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

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

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

### Is d.Hub Forms free?

d.Hub Forms is free to download, with no in-app purchases.

### Do Unit Converter, 50+ Calculator or d.Hub Forms have ads?

Neither Unit Converter, 50+ Calculator nor d.Hub Forms shows ads.

### Which is updated more often, Unit Converter, 50+ Calculator or d.Hub Forms?

Unit Converter, 50+ Calculator ships an update every 2 months, and d.Hub Forms every 3 weeks. Most recently, Unit Converter, 50+ Calculator was updated on October 24, 2026 and d.Hub Forms on October 10, 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.*