# Unit Converter vs Nown POS

The clearest difference is review sentiment: Unit Converter at 58% against Nown POS's 0%. Unit Converter also leads on update cadence (weekly vs monthly) and device support (3 vs 1). Nown POS's advantage is in-app purchases (none vs 12) and ads (none vs shown). On price and iOS requirement there is nothing between them.

Both are free to download. Unit Converter sells 12 in-app purchases, starting at $2.49 per month. Nown POS asks for nothing beyond the download.

Unit Converter ships an update weekly, Nown POS monthly. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Unit Converter | Nown POS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (14K ratings)](https://appshunter.io/ios/app/unit-converter-convert-all/id417794697/reviews)** | — |
| Number of ratings | **14K** | — |
| Positive reviews | **58.2% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Monthly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 70 MB | 4 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [oWorld Software](https://appshunter.io/developer/291192797) | [Lucova Inc](https://appshunter.io/developer/584318983) |

## What reviewers say

### Unit Converter

[App page](https://appshunter.io/ios/app/unit-converter-convert-all/id417794697)

Easily convert between various units of measurement, including currencies, temperature, length, and weight. This intuitive tool provides real-time currency exchange rates and a comprehensive list of conversions for everyday use.

**Highlights:** Real-time currency conversions, Extensive unit categories (weight, temp, length, volume, etc.), Simple and intuitive interface, Supports international currencies, Includes time, speed, and IT units, Unlockable premium units

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, iMessage stickers, Vision Pro support, iPhone Duo support

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium 1 month | $2.49 | per month |
| Unit Converter Premium - 1y | $8.99 | per year |
| Get premium | $14.99 | per year |
| Premium 1 year | $14.99 | per year |
| Conversion Calculator Pro - 1y | $19.99 | per year |
| Conversion clothing sizes 1y | $0.99 | one-time |
| Conversion liquids/volumes 1y | $0.99 | one-time |
| Remove Ads 1y | $0.99 | one-time |
| Conversion angles, forces 1y | $1.99 | one-time |
| Conversion of shoe sizes 1y | $1.99 | one-time |
| Currency Converter 1y | $1.99 | one-time |
| Convert all units + No ads | $29.99 | one-time |

**What reviewers like**

- 🚀 Easy to use
- 🚀 Comprehensive unit conversions
- 👍 Helpful app
- 👍 Practical for engineering and mechanics
- 👍 Intuitive interface

**What reviewers complain about**

- 🔍 Too many ads
- 🔍 Ads make the app unusable
- 🔍 Ads are invasive and disrupt user experience
- 💰 Expensive subscription for ad-free version
- 🐛 Crashes and stability issues

**Reported bugs**

- Conversion calculations are sometimes inaccurate
- Inability to enter decimal values in some conversions
- Compatibility issues with newer devices

**Requested features**

- Dark mode option
- Favorites/frequently used units
- Improved ad-supported free version
- More customization options


### Nown POS

[App page](https://appshunter.io/ios/app/nown-pos/id1369287906)

This comprehensive point-of-sale solution focuses on customer relationships. It integrates payment processing, mobile ordering, and loyalty programs, offering a unified platform for retail businesses. The system includes a customer-facing app and advanced recognition technology.

**Highlights:** Customer loyalty program, Mobile order system, Cloud-based POS management, Multiple payment acceptance, Contactless payment options, Customer-facing app

**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 Nown POS free?

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

### Do Unit Converter or Nown POS have ads?

Unit Converter shows ads; Nown POS does not.

### Which is updated more often, Unit Converter or Nown POS?

Unit Converter ships an update weekly, and Nown POS monthly. Most recently, Unit Converter was updated on October 28, 2026 and Nown POS on October 24, 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.*