# Light Master vs Home Assistant

The clearest difference is review sentiment: Home Assistant at 54% against Light Master's 0%. Home Assistant also leads on device support (4 vs 2). Light Master's advantage is iOS requirement (9.0 vs 16.4). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 10 days. The most recent releases landed on October 10, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Light Master | Home Assistant |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (4K ratings)](https://appshunter.io/ios/app/home-assistant/id1099568401/reviews)** |
| Number of ratings | — | **4K** |
| Positive reviews | 0.0% of reviews | **54.1% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 days | Every 10 days |
| Monetization | Free | Free |
| Size | 32 MB | 261 MB |
| Requires iOS | **9.0** | 16.4 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Opple Lighting Co., Ltd.](https://appshunter.io/developer/955299786) | [Nabu Casa, Inc](https://appshunter.io/developer/1525301324) |

## What reviewers say

### Light Master

[App page](https://appshunter.io/ios/app/light-master/id1077969059)

This app transforms your device into a professional light meter. Measure illumination, CCT, UV, and XY values by simply plugging in a compatible accessory. It's a handy tool for analyzing light conditions.

**Highlights:** Measures illumination, Measures CCT, Measures UV, Measures XY values, Requires accessory connection

**Features:** macOS Compatibility

**In-app purchases:** none


### Home Assistant

[App page](https://appshunter.io/ios/app/home-assistant/id1099568401)

Control your entire smart home from one app, locally and privately. Automate devices, receive notifications, and manage your home's data securely. Integrates with thousands of smart devices and open standards.

**Highlights:** Control entire home from one app, Discover and configure new devices, Automate device actions, Local data privacy, Connect to open standards (Z-Wave, Zigbee, Matter), Remote access via Home Assistant Cloud, Location-based automation

**Features:** Siri integration, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Light Master free?

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

### Is Home Assistant free?

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

### Do Light Master or Home Assistant have ads?

Neither Light Master nor Home Assistant shows ads.

### Which is updated more often, Light Master or Home Assistant?

Light Master ships an update every 10 days, and Home Assistant every 10 days. Most recently, Light Master was updated on October 10, 2026 and Home Assistant on October 15, 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.*