# Smart iMeters vs KT Smart OS

The clearest difference is update cadence: KT Smart OS at every 2 months against Smart iMeters's every 20 months. 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.

Smart iMeters ships an update every 20 months, KT Smart OS every 2 months. The most recent releases landed on October 3, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Smart iMeters | KT Smart OS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 2 months** |
| Size | 29 MB | 95 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Changzhou Haoyi Technology Co.,Ltd.](https://appshunter.io/developer/6775329697) | [晓余 朱](https://appshunter.io/developer/1303559410) |

## What reviewers say

### Smart iMeters

[App page](https://appshunter.io/ios/app/smart-imeters/id6450159159)

**Features:** macOS Compatibility

**In-app purchases:** none


### KT Smart OS

[App page](https://appshunter.io/ios/app/kt-smart-os/id6768190579)

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

**In-app purchases:** none


## Frequently asked questions

### Is Smart iMeters free?

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

### Is KT Smart OS free?

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

### Do Smart iMeters or KT Smart OS have ads?

Neither Smart iMeters nor KT Smart OS shows ads.

### Which is updated more often, Smart iMeters or KT Smart OS?

Smart iMeters ships an update every 20 months, and KT Smart OS every 2 months. Most recently, Smart iMeters was updated on October 3, 2026 and KT Smart OS on October 4, 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.*