# SmarDen vs ST4U

The clearest difference is update cadence: ST4U at every 3 weeks against SmarDen's every 3 months. SmarDen's advantage is iOS requirement (13.0 vs 15.1). 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.

SmarDen ships an update every 3 months, ST4U every 3 weeks. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | SmarDen | ST4U |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 98 MB | 35 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [30Days Technologies Pvt Ltd](https://appshunter.io/developer/1535159812) | [HePoJ](https://appshunter.io/developer/1596658297) |

## What reviewers say

### SmarDen

[App page](https://appshunter.io/ios/app/smarden/id1535159810)

Control and manage all your smart home appliances remotely, anytime, anywhere. Schedule actions, create custom workflows based on environmental triggers, and monitor energy consumption. Integrate with voice assistants for hands-free operation.

**Highlights:** Remote appliance control, User access management, IR appliance control (TV, AC), Entertainment program guide, Scheduling with Routines & Scenes, Workflow automation, Real-time energy monitoring, Voice control (Google Assistant, Alexa)

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

**In-app purchases:** none


### ST4U

[App page](https://appshunter.io/ios/app/st4u/id1596658055)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SmarDen free?

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

### Is ST4U free?

ST4U is free to download, with no in-app purchases.

### Do SmarDen or ST4U have ads?

Neither SmarDen nor ST4U shows ads.

### Which is updated more often, SmarDen or ST4U?

SmarDen ships an update every 3 months, and ST4U every 3 weeks. Most recently, SmarDen was updated on October 29, 2026 and ST4U on October 27, 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.*