# Unit Converter Watch vs Cartly+

The clearest difference is price: Cartly+ at Free against Unit Converter Watch's $1.99. Cartly+ also leads on update cadence (every 2 weeks vs every 38 months). Unit Converter Watch's advantage is rating (4.0 vs 2.0) and in-app purchases (none vs 2). On ratings volume and device support there is nothing between them.

Cartly+ is free to download; Unit Converter Watch costs $1.99 up front. Cartly+ sells 2 in-app purchases, starting at $4.99 per month. Unit Converter Watch asks for nothing beyond the download.

Unit Converter Watch holds the better App Store score, 4.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews point the same way: 33% of Unit Converter Watch's written reviews are positive against 0% of Cartly+'s.

Unit Converter Watch ships an update every 38 months, Cartly+ every 2 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Unit Converter Watch | Cartly+ |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/unit-converter-watch/id6446907181/reviews)** | [2.0 (1 ratings)](https://appshunter.io/ios/app/cartly-plus/id6746639894/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | **33.3% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 38 months | **Every 2 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 2 MB | 48 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod, Apple Watch | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Portumnus](https://appshunter.io/developer/328439229) | [S10 Solutions OÜ](https://appshunter.io/developer/1807733331) |

## What reviewers say

### Unit Converter Watch

[App page](https://appshunter.io/ios/app/unit-converter-watch/id6446907181)

This watch application facilitates unit conversions for various measurements including length, temperature, weight, volume, area, and speed. Navigate through different conversion types by swiping and easily select units or input values for quick calculations directly on your wrist.

**Highlights:** Converts length, temperature, weight, volume, area, and speed, Designed for Apple Watch convenience, Swipe navigation between conversion types, Easy unit selection and value input, Simple and intuitive interface

**Features:** Apple Watch app

**In-app purchases:** none


### Cartly+

[App page](https://appshunter.io/ios/app/cartly-plus/id6746639894)

Easily manage household shopping with a shared list that updates in real-time. Coordinate with family or roommates through built-in chat and receive smart notifications for added or checked-off items. Enjoy a clean, fast, and distraction-free design for effortless grocery planning.

**Highlights:** Real-time shared lists, Built-in household chat, Smart notifications, Organize shopping lists, Fast, distraction-free design, Multiple lists (Premium)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cartly+ Premium Monthly | $4.99 | per month |
| Cartly+ Premium Yearly | $39.99 | per year |


## Frequently asked questions

### Is Unit Converter Watch free?

Unit Converter Watch costs $1.99, with no in-app purchases.

### Is Cartly+ free?

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

### Which has better reviews, Unit Converter Watch or Cartly+?

Unit Converter Watch is rated higher. Unit Converter Watch averages 4.0 out of 5 from 1 ratings, while Cartly+ averages 2.0 from 1 ratings.

### Do Unit Converter Watch or Cartly+ have ads?

Cartly+ shows ads; Unit Converter Watch does not.

### Which is updated more often, Unit Converter Watch or Cartly+?

Unit Converter Watch ships an update every 38 months, and Cartly+ every 2 weeks. Most recently, Unit Converter Watch was updated on November 3, 2026 and Cartly+ on October 30, 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.*