# KEC vs Unit Converter & Currency

The clearest difference is in-app purchases: KEC at none against Unit Converter & Currency's 3. KEC also leads on ads (none vs shown) and update cadence (fortnightly vs every 3 months). On price and device support there is nothing between them.

Both are free to download. Unit Converter & Currency sells 3 in-app purchases, starting at $1.29 per month. KEC asks for nothing beyond the download.

KEC ships an update fortnightly, Unit Converter & Currency every 3 months. The most recent releases landed on October 27, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | KEC | Unit Converter & Currency |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/unit-converter-and-currency/id6479210637/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Every 3 months |
| Monetization | — | Free with in-app purchases |
| Size | 37 MB | 28 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KEC集运](https://appshunter.io/developer/1644690466) | [长宏 侯](https://appshunter.io/developer/1726037103) |

## What reviewers say

### KEC

[App page](https://appshunter.io/ios/app/kec/id1644690404)

**Features:** macOS Compatibility

**In-app purchases:** none


### Unit Converter & Currency

[App page](https://appshunter.io/ios/app/unit-converter-and-currency/id6479210637)

This app offers a comprehensive unit conversion tool with a clean interface and extensive customization options. It supports offline use and includes a currency converter, making it a versatile utility for various conversion needs.

**Highlights:** Offline unit conversion, Currency converter, 32 unit categories, Convert as you type, Customizable units and formats, Dark and light modes, iCloud data sync

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro (Monthly) | $1.29 | per month |
| Pro (Yearly) | $12.99 | per year |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is KEC free?

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

### Is Unit Converter & Currency free?

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

### Do KEC or Unit Converter & Currency have ads?

Unit Converter & Currency shows ads; KEC does not.

### Which is updated more often, KEC or Unit Converter & Currency?

KEC ships an update fortnightly, and Unit Converter & Currency every 3 months. Most recently, KEC was updated on October 27, 2026 and Unit Converter & Currency on November 4, 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.*