# Unit co vs UnitStack

The clearest difference is update cadence: UnitStack at every 2 days against Unit co's weekly. Unit co's advantage is iOS requirement (12.0 vs 18.6). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Unit co against 5.0 for UnitStack. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Unit co ships an update weekly, UnitStack every 2 days. The most recent releases landed on October 3, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Unit co | UnitStack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/unit-co/id6736639104/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/unitstack/id6757423947/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | **Every 2 days** |
| Monetization | Free | Free |
| Size | 24 MB | 4 MB |
| Requires iOS | **12.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Michael Mobayen](https://appshunter.io/developer/1586404621) | [Michael Yang](https://appshunter.io/developer/1866843188) |

## What reviewers say

### Unit co

[App page](https://appshunter.io/ios/app/unit-co/id6736639104)

Easily convert between various units of measurement with this straightforward utility. It offers a simple interface for quick and accurate conversions across different categories.

**Highlights:** Unit conversion, Multiple measurement categories, Simple interface, Accurate results

**Features:** macOS Compatibility

**In-app purchases:** none


### UnitStack

[App page](https://appshunter.io/ios/app/unitstack/id6757423947)

This utility app allows for simultaneous unit and currency conversions, saving your progress and custom units. Its minimalist design ensures a clear and efficient user experience for all your measurement needs.

**Highlights:** Stack multiple conversions, Persistent values, Custom units of measure, Minimalist interface, Custom color themes, Currency conversion

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Unit co free?

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

### Is UnitStack free?

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

### Which has better reviews, Unit co or UnitStack?

Unit co and UnitStack are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Unit co or UnitStack have ads?

Neither Unit co nor UnitStack shows ads.

### Which is updated more often, Unit co or UnitStack?

Unit co ships an update weekly, and UnitStack every 2 days. Most recently, Unit co was updated on October 3, 2026 and UnitStack on October 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.*