# Duux vs Legacy Keeper

The clearest difference is update cadence: Legacy Keeper at every 6 days against Duux's 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.

Duux ships an update monthly, Legacy Keeper every 6 days. The most recent releases landed on October 12, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Duux | Legacy Keeper |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (15 ratings)](https://appshunter.io/ios/app/duux/id1627712939/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | 29.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 6 days** |
| Monetization | Ad-supported | — |
| Size | 122 MB | 56 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Duux B.V.](https://appshunter.io/developer/1474620118) | [Stookley Sasabone](https://appshunter.io/developer/6780603523) |

## What reviewers say

### Duux

[App page](https://appshunter.io/ios/app/duux/id1627712939)

Control and monitor your smart air treatment devices from anywhere. Schedule operations, adjust settings, and ensure optimal air quality for a healthier living environment. Experience a smarter, more connected home.

**Highlights:** Real-time device monitoring, Easy scheduling of operations, Remote control from anywhere, Intuitive user interface, Manage air treatment devices

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Heater works well and warms room quickly
- 👍 Slick design and intuitive app
- 👍 Excellent user experience
- 🚀 Powerful and effective
- 👍 Recommended product

**What reviewers complain about**

- 🐛 App is buggy and unreliable
- 🐛 Frequent disconnections and connection issues
- 🐛 App is useless, doesn't work as advertised
- 🐛 App is outdated and lacks functionality
- 🐛 App is terrible, freezes device

**Reported bugs**

- App frequently loses connection with device
- App unable to find or add device
- App UI and functionality regressed with updates
- Devices randomly disconnecting from WiFi
- App login/registration issues

**Requested features**

- Add ability to edit schedules
- Implement away mode or low temperature setting
- Allow rearranging of rooms in app
- Add more scheduling options and flexibility
- Improve Alexa/Google Home integration


### Legacy Keeper

[App page](https://appshunter.io/ios/app/legacy-keeper/id6780603521)

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

**In-app purchases:** none


## Frequently asked questions

### Is Duux free?

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

### Is Legacy Keeper free?

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

### Do Duux or Legacy Keeper have ads?

Neither Duux nor Legacy Keeper shows ads.

### Which is updated more often, Duux or Legacy Keeper?

Duux ships an update monthly, and Legacy Keeper every 6 days. Most recently, Duux was updated on October 12, 2026 and Legacy Keeper on October 6, 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.*