# Unit Converter vs NextCode Authenticator

The clearest difference is ads: NextCode Authenticator at none against Unit Converter's shown. NextCode Authenticator also leads on update cadence (every 2 weeks vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Unit Converter sells 1 in-app purchase, starting at $4.99 per month and NextCode Authenticator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Unit Converter ships an update every 2 months, NextCode Authenticator every 2 weeks. The most recent releases landed on October 18, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Unit Converter | NextCode Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/unit-converter-14-in-1/id1587655048/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 10 MB | 3 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Noadit, Inc.](https://appshunter.io/developer/1516754355) | [Zhe Wu](https://appshunter.io/developer/1821356459) |

## What reviewers say

### Unit Converter

[App page](https://appshunter.io/ios/app/unit-converter-14-in-1/id1587655048)

This tool offers fast and accurate conversions across 14 physical unit categories, supporting metric, imperial, and traditional Chinese units. Customize display styles for a personalized experience. An optional VIP subscription removes ads and offers ad-free access.

**Highlights:** Converts 14 physical unit categories, Supports metric, imperial, and Chinese units, Customizable display styles, Precise conversion algorithms, Ad-free VIP subscription option

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP | $4.99 | per month |


### NextCode Authenticator

[App page](https://appshunter.io/ios/app/nextcode-authenticator/id6787331495)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NextCode Premium | $9.99 | one-time |


## Frequently asked questions

### Is Unit Converter free?

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

### Is NextCode Authenticator free?

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

### Do Unit Converter or NextCode Authenticator have ads?

Unit Converter shows ads; NextCode Authenticator does not.

### Which is updated more often, Unit Converter or NextCode Authenticator?

Unit Converter ships an update every 2 months, and NextCode Authenticator every 2 weeks. Most recently, Unit Converter was updated on October 18, 2026 and NextCode Authenticator on October 15, 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.*