Comparison

Coway IoCare+ vs marimo Knock

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Personalized usage pattern analysis
  • Product status dashboard
  • Remote product control
  • Usage reports with graphs
  • Automated routine setup
  • Group product control
Features
Read full description

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.

About

marimo Knock

Features
Read full description

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

Coway IoCare+4 screens
marimo Knock4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

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.

Scorecard1 real difference · 9 level
Coway IoCare+ versus marimo Knock: the parameters behind the verdict, then further details
ParameterCoway IoCare+marimo Knock
PriceFreeFree
Rating1.5 (101 ratings) — better—
Positive reviews12.0% of reviews—
Number of ratings101 — better—
Update frequencyMonthlyEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhoneiPhone, iPod — better
Requires iOS16.015.0 — better
Further details — not scored
Size340 MB22 MB
Age rating4+4+
DeveloperCoway 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

None

Coway IoCare+

No in-app purchases

None

marimo Knock

No in-app purchases

Questions

Is Coway IoCare+ free?
Coway IoCare+ is free to download, with no in-app purchases.
Is marimo Knock free?
marimo Knock is free to download, with no in-app purchases.
Do Coway IoCare+ or marimo Knock have ads?
Neither Coway IoCare+ nor marimo Knock shows ads.
Which is updated more often, Coway IoCare+ or marimo Knock?
Coway IoCare+ ships an update monthly, and marimo Knock every 5 days. Most recently, Coway IoCare+ was updated on October 20, 2026 and marimo Knock on October 10, 2026.

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