# supra SmartLED vs Unit Converter and Conversion

The clearest difference is review sentiment: Unit Converter and Conversion at 82% against supra SmartLED's 0%. supra SmartLED's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Unit Converter and Conversion sells 1 one-off in-app purchase. supra SmartLED asks for nothing beyond the download.

supra SmartLED ships an update every 2 months, Unit Converter and Conversion every 10 months. Both last shipped on November 2, 2026.

## The numbers

| Metric | supra SmartLED | Unit Converter and Conversion |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (49 ratings)](https://appshunter.io/ios/app/unit-converter-and-conversion/id1350107532/reviews)** |
| Number of ratings | — | **49** |
| Positive reviews | 0.0% of reviews | **81.8% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 10 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 18 MB | 42 MB |
| Requires iOS | **8.3** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [supra GmbH](https://appshunter.io/developer/582593450) | [Asad Ahsan](https://appshunter.io/developer/1326954499) |

## What reviewers say

### supra SmartLED

[App page](https://appshunter.io/ios/app/supra-smartled/id1061643694)

Control your SmartLED devices via Bluetooth. Change colors, sync with music or voice, and group multiple lights into rooms for synchronized effects.

**Highlights:** Bluetooth connectivity, Color customization, Music synchronization, Voice tracking control, Room grouping

**In-app purchases:** none


### Unit Converter and Conversion

[App page](https://appshunter.io/ios/app/unit-converter-and-conversion/id1350107532)

This app offers a user-friendly interface for converting units across more than 40 categories, including length, weight, volume, and digital storage. It works offline and saves conversion history for future reference. Ideal for students and professionals needing quick and accurate conversions.

**Highlights:** Over 40 conversion categories, Offline functionality, Conversion history saving, User-friendly interface, Supports length, weight, volume, and more, Elegant graphics

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unit Converter Pro | $4.99 | one-time |


## Frequently asked questions

### Is supra SmartLED free?

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

### Is Unit Converter and Conversion free?

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

### Do supra SmartLED or Unit Converter and Conversion have ads?

Unit Converter and Conversion shows ads; supra SmartLED does not.

### Which is updated more often, supra SmartLED or Unit Converter and Conversion?

supra SmartLED ships an update every 2 months, and Unit Converter and Conversion every 10 months. Most recently, supra SmartLED was updated on November 2, 2026 and Unit Converter and Conversion on November 2, 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.*