# Sensi vs Light Master

The clearest difference is review sentiment: Sensi at 36% against Light Master's 0%. Light Master's advantage is monetization model (free vs free with in-app purchases) and update cadence (every 10 days vs monthly). On price, ads, 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.

Sensi ships an update monthly, Light Master every 10 days. The most recent releases landed on October 18, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Sensi | Light Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (244K ratings)](https://appshunter.io/ios/app/sensi/id792612452/reviews)** | — |
| Number of ratings | **244K** | — |
| Positive reviews | **35.7% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 10 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 63 MB | 32 MB |
| Requires iOS | 16.0 | **9.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Copeland LP](https://appshunter.io/developer/464252882) | [Opple Lighting Co., Ltd.](https://appshunter.io/developer/955299786) |

## What reviewers say

### Sensi

[App page](https://appshunter.io/ios/app/sensi/id792612452)

Control your home's climate remotely with a smart thermostat. Adjust temperature, set schedules, and receive alerts from anywhere. Integrates with popular smart home platforms for seamless control.

**Highlights:** Remote temperature control, 7-day scheduling, Usage reports, Service reminders, Geofencing, Smart home integration

**In-app purchases:** none

**What reviewers like**

- 🚀 Fantastic remote control
- 🔥 Great functionality
- 👍 Easy installation
- 💰 Good value
- ⏱️ Helpful usage tracking

**What reviewers complain about**

- 🔌 Frequent disconnections
- 🐛 Inconsistent performance
- 📱 Unintuitive app interface
- 🌐 Lacks international support
- 🌡️ Inaccurate humidity readings

**Reported bugs**

- Thermostat randomly disconnects from WiFi
- Programmed schedules not being retained
- Temperature settings not sticking after adjustments

**Requested features**

- Finer temperature control in Celsius
- Automatic heating/cooling mode switching based on outdoor temperature
- More detailed usage reporting
- Ability to set schedules with shorter intervals
- Support for multiple user accounts and geofencing


### 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


## Frequently asked questions

### Is Sensi free?

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

### Is Light Master free?

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

### Do Sensi or Light Master have ads?

Neither Sensi nor Light Master shows ads.

### Which is updated more often, Sensi or Light Master?

Sensi ships an update monthly, and Light Master every 10 days. Most recently, Sensi was updated on October 18, 2026 and Light Master on October 10, 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.*