# SAHN Smart vs iwachi

The clearest difference is update cadence: SAHN Smart at every 3 months against iwachi's every 25 months. iwachi's advantage is iOS requirement (11.0 vs 14.0). 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.

SAHN Smart ships an update every 3 months, iwachi every 25 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | SAHN Smart | iwachi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sahn-smart/id1510863340/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 25 months |
| Monetization | Free | — |
| Size | 214 MB | 191 MB |
| Requires iOS | 14.0 | **11.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SAHN Smart](https://appshunter.io/developer/1510863339) | [Gao Yang Electric Company Limited](https://appshunter.io/developer/1618002633) |

## What reviewers say

### SAHN Smart

[App page](https://appshunter.io/ios/app/sahn-smart/id1510863340)

Control your smart home devices remotely with this application. Manage multiple devices, perform various functions like on/off and timers, and easily share access with family members.

**Highlights:** Remote device control, Manage multiple devices, On/off and dimming functions, Timer settings, Device sharing with members, Easy device connection

**Features:** Vision Pro support

**In-app purchases:** none


### iwachi

[App page](https://appshunter.io/ios/app/iwachi/id1618002631)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SAHN Smart free?

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

### Is iwachi free?

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

### Do SAHN Smart or iwachi have ads?

Neither SAHN Smart nor iwachi shows ads.

### Which is updated more often, SAHN Smart or iwachi?

SAHN Smart ships an update every 3 months, and iwachi every 25 months. Most recently, SAHN Smart was updated on November 3, 2026 and iwachi on November 3, 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.*