# Unit Converter vs Envoy

The clearest difference is update cadence: Envoy at monthly against Unit Converter's every 13 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Unit Converter sells 2 in-app purchases, starting at $4.99 per month and Envoy sells 1 in-app purchase, starting at $1.49 per month. Whichever you choose, the download price is not the number that matters.

Unit Converter ships an update every 13 months, Envoy monthly. The most recent releases landed on November 2, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Unit Converter | Envoy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (13 ratings)](https://appshunter.io/ios/app/unit-converter/id1377049882/reviews)** | — |
| Number of ratings | **13** | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 13 months | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 50 MB | 90 MB |
| Requires iOS | 16.4 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [xNeat.com](https://appshunter.io/developer/327498295) | [Mehmet Kucuk](https://appshunter.io/developer/1738117494) |

## What reviewers say

### Unit Converter

[App page](https://appshunter.io/ios/app/unit-converter/id1377049882)

This app offers a wide range of unit conversions for various measurements, from temperature to length. It features a user-friendly interface, customizable themes, and smart features that remember your frequent conversions. It also links to external apps for specialized tasks.

**Highlights:** Broad conversion spectrum, Personalizable themes, User-friendly interface, Smart features for frequent conversions, Links to specialized external apps

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unit Converter | $4.99 | per month |
| Unit Converter | $39.99 | per year |


### Envoy

[App page](https://appshunter.io/ios/app/envoy-your-smart-feed/id6757214550)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro Subscription | $1.49 | per month |


## Frequently asked questions

### Is Unit Converter free?

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

### Is Envoy free?

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

### Do Unit Converter or Envoy have ads?

Both Unit Converter and Envoy show ads.

### Which is updated more often, Unit Converter or Envoy?

Unit Converter ships an update every 13 months, and Envoy monthly. Most recently, Unit Converter was updated on November 2, 2026 and Envoy on October 28, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*