# UnitConverter byNSDev vs 03connect

The clearest difference is update cadence: 03connect at every 6 days against UnitConverter byNSDev's every 5 months. 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.

UnitConverter byNSDev ships an update every 5 months, 03connect every 6 days. The most recent releases landed on October 4, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | UnitConverter byNSDev | 03connect |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 6 days** |
| Monetization | Free | — |
| Size | 4 MB | 10 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [NIHON SYSTEM DEVELOPER CORPORATION](https://appshunter.io/developer/1198103734) | [MITSUFUJI CORPORATION](https://appshunter.io/developer/1400109009) |

## What reviewers say

### UnitConverter byNSDev

[App page](https://appshunter.io/ios/app/unitconverter-bynsdev/id1229121492)

This tool converts between 26 different types of units, displaying conversion rates and allowing you to specify decimal places. It supports a vast array of units across categories like length, mass, volume, and more.

**Highlights:** Converts 26 types of units, Displays conversion rates, Customizable decimal places, Supports numerous units in various categories, User-submitted unit requests

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

**In-app purchases:** none


### 03connect

[App page](https://appshunter.io/ios/app/03connect/id6769222610)

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

**In-app purchases:** none


## Frequently asked questions

### Is UnitConverter byNSDev free?

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

### Is 03connect free?

03connect is free to download, with no in-app purchases.

### Do UnitConverter byNSDev or 03connect have ads?

Neither UnitConverter byNSDev nor 03connect shows ads.

### Which is updated more often, UnitConverter byNSDev or 03connect?

UnitConverter byNSDev ships an update every 5 months, and 03connect every 6 days. Most recently, UnitConverter byNSDev was updated on October 4, 2026 and 03connect on October 6, 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.*