# Smart AirPurifier KAKAOFRIENDS vs RINGA+

The clearest difference is iOS requirement: RINGA+ at 10.0 against Smart AirPurifier KAKAOFRIENDS's 13.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Smart AirPurifier KAKAOFRIENDS ships an update every 4 months, RINGA+ every 7 months. The most recent releases landed on October 21, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Smart AirPurifier KAKAOFRIENDS | RINGA+ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 9.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 7 months |
| Monetization | Free | — |
| Size | 73 MB | 99 MB |
| Requires iOS | 13.0 | **10.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kakao Corp.](https://appshunter.io/developer/362057950) | [CHINA MOBILE INTERNATIONAL LIMITED](https://appshunter.io/developer/579246476) |

## What reviewers say

### Smart AirPurifier KAKAOFRIENDS

[App page](https://appshunter.io/ios/app/smart-airpurifier-kakaofriends/id1521758027)

Enhance your daily life with a fresh and clean atmosphere. This application helps you maintain a pleasant environment.

**Highlights:** Fresh air maintenance, Daily life enhancement, Clean atmosphere control

**In-app purchases:** none


### RINGA+

[App page](https://appshunter.io/ios/app/ringa-plus/id1621534596)

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

**In-app purchases:** none


## Frequently asked questions

### Is Smart AirPurifier KAKAOFRIENDS free?

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

### Is RINGA+ free?

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

### Do Smart AirPurifier KAKAOFRIENDS or RINGA+ have ads?

Neither Smart AirPurifier KAKAOFRIENDS nor RINGA+ shows ads.

### Which is updated more often, Smart AirPurifier KAKAOFRIENDS or RINGA+?

Smart AirPurifier KAKAOFRIENDS ships an update every 4 months, and RINGA+ every 7 months. Most recently, Smart AirPurifier KAKAOFRIENDS was updated on October 21, 2026 and RINGA+ on October 26, 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.*