# KT 스마트메시지 Plus vs Group SMS

The clearest difference is in-app purchases: KT 스마트메시지 Plus at none against Group SMS's 1. Group SMS's advantage is update cadence (every 2 months vs every 20 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Group SMS sells 1 one-off in-app purchase. KT 스마트메시지 Plus asks for nothing beyond the download.

KT 스마트메시지 Plus ships an update every 20 months, Group SMS every 2 months. The most recent releases landed on September 7, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | KT 스마트메시지 Plus | Group SMS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 2 months** |
| Size | 27 MB | 40 MB |
| Requires iOS | 12.1 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KT Corporation](https://appshunter.io/developer/335129223) | [KyongDon Um](https://appshunter.io/developer/1556429574) |

## What reviewers say

### KT 스마트메시지 Plus

[App page](https://appshunter.io/ios/app/kt-plus/id979089793)

**Features:** macOS Compatibility

**In-app purchases:** none


### Group SMS

[App page](https://appshunter.io/ios/app/group-sms-group-message/id1671152645)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad-free | $0.99 | one-time |


## Frequently asked questions

### Is KT 스마트메시지 Plus free?

KT 스마트메시지 Plus is free to download, with no in-app purchases.

### Is Group SMS free?

Group SMS is free to download, with in-app purchases available.

### Do KT 스마트메시지 Plus or Group SMS have ads?

Neither KT 스마트메시지 Plus nor Group SMS shows ads.

### Which is updated more often, KT 스마트메시지 Plus or Group SMS?

KT 스마트메시지 Plus ships an update every 20 months, and Group SMS every 2 months. Most recently, KT 스마트메시지 Plus was updated on September 7, 2026 and Group SMS on September 9, 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.*