# Smart AirPurifier KAKAOFRIENDS vs HelloSwap

The clearest difference is ads: Smart AirPurifier KAKAOFRIENDS at none against HelloSwap's shown. HelloSwap's advantage is update cadence (weekly vs every 4 months). On price, in-app purchases, device support and iOS requirement 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, HelloSwap weekly. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Smart AirPurifier KAKAOFRIENDS | HelloSwap |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 9.1% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Weekly** |
| Monetization | Free | — |
| Size | 73 MB | 49 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Kakao Corp.](https://appshunter.io/developer/362057950) | [HELLOBIKESG PTE. LTD.](https://appshunter.io/developer/1611538622) |

## 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


### HelloSwap

[App page](https://appshunter.io/ios/app/helloswap/id6749039836)

**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 HelloSwap free?

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

### Do Smart AirPurifier KAKAOFRIENDS or HelloSwap have ads?

HelloSwap shows ads; Smart AirPurifier KAKAOFRIENDS does not.

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

Smart AirPurifier KAKAOFRIENDS ships an update every 4 months, and HelloSwap weekly. Most recently, Smart AirPurifier KAKAOFRIENDS was updated on November 3, 2026 and HelloSwap on November 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*