# Unit Ⅽonverter vs Emesis

The clearest difference is in-app purchases: Emesis at none against Unit Ⅽonverter's 2. Emesis also leads on ads (none vs shown) and iOS requirement (13.0 vs 18.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Unit Ⅽonverter sells 2 in-app purchases, starting at $1.99 per month. Emesis asks for nothing beyond the download.

Unit Ⅽonverter ships an update every 3 weeks, Emesis every 2 weeks. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Unit Ⅽonverter | Emesis |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 8 MB | 20 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Polymath Company Limited](https://appshunter.io/developer/1072350394) | [ECM System Solutions s.r.o.](https://appshunter.io/developer/1451727890) |

## What reviewers say

### Unit Ⅽonverter

[App page](https://appshunter.io/ios/app/unit-onverter/id1499479393)

Easily convert between over 1600 units of measurement across 75 categories, including custom units and complex calculations. Supports offline mode and offers a convenient history of your conversions.

**Highlights:** Convert over 1600 units in 75 categories, Supports custom units and combinations, Calculator for expression input, View conversion histories, Add favorite units, Offline mode, Copy and share results

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| UnitConverterPremiumMonthly | $1.99 | per month |
| UnitConverterPremiumLifeTime | $33.99 | one-time |


### Emesis

[App page](https://appshunter.io/ios/app/emesis/id6740566870)

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

**In-app purchases:** none


## Frequently asked questions

### Is Unit Ⅽonverter free?

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

### Is Emesis free?

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

### Do Unit Ⅽonverter or Emesis have ads?

Unit Ⅽonverter shows ads; Emesis does not.

### Which is updated more often, Unit Ⅽonverter or Emesis?

Unit Ⅽonverter ships an update every 3 weeks, and Emesis every 2 weeks. Most recently, Unit Ⅽonverter was updated on November 3, 2026 and Emesis on October 25, 2026.

---

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