# iLlumination US vs Units

The clearest difference is rating: Units at 4.9 against iLlumination US's 3.6. Units also leads on monetization model (free vs paid) and iOS requirement (15.1 vs 17.6). iLlumination US's advantage is ratings volume (42 vs 9). On price, in-app purchases and device support there is nothing between them.

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

Units holds the better App Store score, 4.9 against 3.6. Both are backed by a comparable volume of ratings — 42 and 9 respectively.

## The numbers

| Metric | iLlumination US | Units |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (42 ratings)](https://appshunter.io/ios/app/illumination-us-flashlight/id385896092/reviews) | **[4.9 (9 ratings)](https://appshunter.io/ios/app/units-conversion-calculator/id6761082020/reviews)** |
| Number of ratings | **42** | 9 |
| Positive reviews | 52.1% of reviews | — |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | Every 2 months | — |
| Monetization | Paid | **Free** |
| Size | 23 MB | 33 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Erik Storli](https://appshunter.io/developer/312277396) | [Matys Bouziane](https://appshunter.io/developer/1785637310) |

## What reviewers say

### iLlumination US

[App page](https://appshunter.io/ios/app/illumination-us-flashlight/id385896092)

This universal flashlight app transforms your device into a powerful illumination tool. It offers LED and screen-based lighting, adjustable brightness, strobe effects, and Morse code functionality. Customize your light with color and contrast options for various needs.

**Highlights:** LED and screen flashlight, Adjustable strobe modes, Morse code functionality, Color picker for screen light, Adjustable screen contrast, Screen lock feature

**Features:** macOS Compatibility

**In-app purchases:** none


### Units

[App page](https://appshunter.io/ios/app/units-conversion-calculator/id6761082020)

Instantly convert any unit with this comprehensive tool. It offers 57 categories, built-in calculators for finance and health, and size lookup tables for clothing and hardware. Enjoy offline functionality and a clean, ad-free experience.

**Highlights:** 57 conversion categories, Built-in calculators (currency, finance, health), Size lookup tables, Offline functionality, Conversion history, Favorites, Multi-language support

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

**In-app purchases:** none


## Frequently asked questions

### Is iLlumination US free?

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

### Is Units free?

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

### Which has better reviews, iLlumination US or Units?

Units is rated higher. iLlumination US averages 3.6 out of 5 from 42 ratings, while Units averages 4.9 from 9 ratings.

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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.*