# D+ vs QT APP

The clearest difference is update cadence: D+ at every 4 weeks against QT APP's every 31 months. D+ also leads on device support (4 vs 2) and iOS requirement (9.0 vs 14.0). On price, 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.

D+ ships an update every 4 weeks, QT APP every 31 months. The most recent releases landed on October 18, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | D+ | QT APP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/d-plus/id1191388630/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 31 months |
| Monetization | Free | — |
| Size | 145 MB | 209 MB |
| Requires iOS | **9.0** | 14.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [英江 李](https://appshunter.io/developer/524505813) | [大民 王](https://appshunter.io/developer/1478598766) |

## What reviewers say

### D+

[App page](https://appshunter.io/ios/app/d-plus/id1191388630)

Automate your home with a wireless smart home system. Control appliances, lighting, security, and more remotely. Enjoy personalized comfort and enhanced home management.

**Highlights:** Security alarm, Fingerprint access, Remote video monitoring, Appliance control, Curtain control, Scene and timing control, Energy saving

**Features:** macOS Compatibility

**In-app purchases:** none


### QT APP

[App page](https://appshunter.io/ios/app/qt-app-smart/id1478598767)

**In-app purchases:** none


## Frequently asked questions

### Is D+ free?

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

### Is QT APP free?

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

### Do D+ or QT APP have ads?

Neither D+ nor QT APP shows ads.

### Which is updated more often, D+ or QT APP?

D+ ships an update every 4 weeks, and QT APP every 31 months. Most recently, D+ was updated on October 18, 2026 and QT APP on September 25, 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.*