Coway IoCare+ vs marimo Knock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Coway IoCare+
Monitor and control your smart home devices like air purifiers, water purifiers, and mattresses. Analyze usage patterns, receive personalized insights, and set up automated routines for convenience. Manage multiple products simultaneously from anywhere.
- Personalized usage pattern analysis
- Product status dashboard
- Remote product control
- Usage reports with graphs
- Automated routine setup
- Group product control
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IoCare+ is an upgraded version of the IoCare app, one of Coway’s IoT service. Starting with mattresses and air purifiers, IoCare+ will support additional products in the future. For Coway products not listed below, please continue using the existing IoCare app. [List of Supported Products] ▶ Outside of Korea - USA : Airmega Series, Aquamega 200C - UK : Airmega C-Mighty (BT Available) - Malaysia : BEREX Smart Matress S6+, S8+ ▶ In Korea - Water purifier : 엘리트 빌트인, 얼음 RO, 아이콘 프로, 아이콘 얼음 미니/스탠다드/맥스 - Air purifier : 노블 2 (100m², 133m²), 노블 제습, 에어 큐레이터 - Matress : BEREX 스마트 매트리스 S5, S6+, S7, S8+ - bidet : 더블케어2(플러스) * For other products, please use the IoCare app. (Not Iocare+) ■ Today: Analyzes your household’s usage patterns and receive personalized content based on your habits. ■ Product Dashboard: Easily check the status of your products and consumables at a glance. Control multiple products simultaneously with group control. ■ Product Control: Manage your products with just one tap, anytime and anywhere. ■ Report: View a clear summary of your usage patterns with keywords and graphs. ■ Routine: Set up a routine once and have your products operate at the desired time and mode. [Supported Device] ● iOS 16 or above ※ Some mobile devices and tablets may have usage restrictions. [Supported Countries] - South Korea, United States ※ Please check the region settings on your mobile device. [Access Permissions] ● Required Permissions - Device and App History: App error confirmation and usage improvements ● Optional Permissions ※ The following optional permissions are required to ensure smooth service. Basic functions are available for use even without optional permissions. - Notifications: Used for push notifications - Camera: Used when scanning product barcodes or QR codes - Location: Used when verifying location of device registration for Wi-Fi products - Bluetooth: Used when registering products - Local Network: Used when registering Wi-Fi products [Precautions] ※ IoCare services may vary depending on product specifications. ※ Some products may only support a 2.4GHz Wi-Fi connection. (5GHz not supported): If your wireless router supports both 2.4GHz and 5GHz, please check your router settings to ensure 2.4GHz is enabled.
marimo Knock
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Knock knock, together with Marimo Send your greetings as if knocking softly. No sign-up required—send a warm hello with just a single tap. Terms of Use: [https://www.apple.com/legal/internet-services/itunes/dev/stdeula/](https://www.apple.com/legal/internet-services/itunes/dev/stdeula/)
Screenshots
Verdict
The clearest difference is update cadence: marimo Knock at every 5 days against Coway IoCare+'s monthly. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Coway IoCare+ ships an update monthly, marimo Knock every 5 days. The most recent releases landed on October 20, 2026 and October 10, 2026 respectively.
| Parameter | Coway IoCare+ | marimo Knock |
|---|---|---|
| Price | Free | Free |
| Rating | 1.5 (101 ratings) — better | — |
| Positive reviews | 12.0% of reviews | — |
| Number of ratings | 101 — better | — |
| Update frequency | Monthly | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 340 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Coway Co., Ltd. | SeongChan Joo |
Bugs and requests
Coway IoCare+
Reported bugs
2 issues- Inability to add air purifier to Wi-Fi
- Failure to transfer settings from old app
Requested features
5 requests- Bring back schedule functionality
- Bring back ability to turn off status light
- Restore custom settings
- Simplify device setup and management
- Improve connectivity and stability
marimo Knock
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Coway IoCare+
No in-app purchases
marimo Knock
No in-app purchases









