# GiA Smart Controller vs EMspec

The clearest difference is iOS requirement: GiA Smart Controller at 10.0 against EMspec's 17.5. 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 2 months. The most recent releases landed on October 7, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | GiA Smart Controller | EMspec |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | — |
| Size | 72 MB | 3 MB |
| Requires iOS | **10.0** | 17.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [欣寶智慧環境股份有限公司](https://appshunter.io/developer/1407153417) | [EMspec](https://appshunter.io/developer/1407698355) |

## What reviewers say

### GiA Smart Controller

[App page](https://appshunter.io/ios/app/gia-smart-controller/id1407153418)

Monitor indoor air quality in real-time and control air purification devices remotely. Detects a wide range of pollutants including PM2.5, CO2, and VOCs. Manage multiple devices from anywhere with an internet connection.

**Highlights:** Comprehensive air quality detection, Real-time monitoring, Remote control of purification devices, Multi-machine management, Detects PM2.5, CO2, VOCs, and more

**Features:** macOS Compatibility

**In-app purchases:** none


### EMspec

[App page](https://appshunter.io/ios/app/emspec/id1407698356)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GiA Smart Controller free?

GiA Smart Controller is free to download, with no in-app purchases.

### Is EMspec free?

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

### Do GiA Smart Controller or EMspec have ads?

Neither GiA Smart Controller nor EMspec shows ads.

### Which is updated more often, GiA Smart Controller or EMspec?

GiA Smart Controller ships an update every 2 months, and EMspec every 2 months. Most recently, GiA Smart Controller was updated on October 7, 2026 and EMspec on September 29, 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.*