# Scale Switch vs Metric Conversions Premium

The clearest difference is price: Scale Switch at Free against Metric Conversions Premium's $4.99. Scale Switch also leads on rating (5.0 vs 3.0). Metric Conversions Premium's advantage is update cadence (every 2 months vs every 4 months) and iOS requirement (15.1 vs 18.1). On ratings volume, ads, in-app purchases and device support there is nothing between them.

Scale Switch is free to download; Metric Conversions Premium costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scale Switch holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Scale Switch ships an update every 4 months, Metric Conversions Premium every 2 months. The most recent releases landed on October 30, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Scale Switch | Metric Conversions Premium |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/scale-switch/id6740058611/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/metric-conversions-premium/id6743940201/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | **Free** | Paid |
| Size | 2 MB | 26 MB |
| Requires iOS | 18.1 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Alberto Purpura](https://appshunter.io/developer/1661532927) | [Wight Hat](https://appshunter.io/developer/1425885740) |

## What reviewers say

### Scale Switch

[App page](https://appshunter.io/ios/app/scale-switch/id6740058611)

This utility app simplifies unit conversions with an intuitive interface. Easily convert between various units for time, data, temperature, area, volume, and more. It's designed for quick, reliable conversions on the go.

**Highlights:** Easy-to-use interface for conversions, Wide range of supported units, Converts time, data, temperature, area, volume, and more, Intuitive and clutter-free design, Quick and reliable results, Supports various measurement systems

**Features:** macOS Compatibility

**In-app purchases:** none


### Metric Conversions Premium

[App page](https://appshunter.io/ios/app/metric-conversions-premium/id6743940201)

This utility app offers a comprehensive suite of unit and currency conversions with a clean interface. It works offline and provides precise results, breaking down complex units into smaller components for detailed analysis. Users can save frequent conversions for quick access.

**Highlights:** No ads or data tracking, Offline functionality, Over 30,000 unit conversions, 130+ currencies with hourly updates, Save favorite conversions, Precise results up to 5 decimal places, Detailed unit breakdowns

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

**In-app purchases:** none


## Frequently asked questions

### Is Scale Switch free?

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

### Is Metric Conversions Premium free?

Metric Conversions Premium costs $4.99, with no in-app purchases.

### Which has better reviews, Scale Switch or Metric Conversions Premium?

Scale Switch is rated higher. Scale Switch averages 5.0 out of 5 from 1 ratings, while Metric Conversions Premium averages 3.0 from 2 ratings.

### Do Scale Switch or Metric Conversions Premium have ads?

Neither Scale Switch nor Metric Conversions Premium shows ads.

### Which is updated more often, Scale Switch or Metric Conversions Premium?

Scale Switch ships an update every 4 months, and Metric Conversions Premium every 2 months. Most recently, Scale Switch was updated on October 30, 2026 and Metric Conversions Premium 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.*