Comparison

SindohSmartUPrint vs LK 워치키보드

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

Head to head

About

SindohSmartUPrint

Features

Read full description

Sindoh에서 제공된 Smart uPrint 환경을 위한 앱입니다. 이 앱은 사용자 모바일에 저장된 이미지 또는 문서를 클라우드 환경에서 출력 할 수 있습니다.

About

LK 워치키보드

This app offers a Korean keyboard layout for Apple Watch, mirroring the familiar iPhone keyboard. It allows for comfortable message sending with an intuitive design.

Highlights

Korean keyboard layout for Apple Watch
Familiar iPhone keyboard arrangement
Comfortable message sending
Intuitive design

Features

Read full description

아이폰 키보드의 한글 키와 같은 배치의 애플 워치 키보드입니다. 익숙한 형태의 키보드로 편하게 메시지 전송하세요.

Screenshots

SindohSmartUPrint4 screens

Verdict

The call

The clearest difference is price: SindohSmartUPrint at Free against LK 워치키보드's $5.99. SindohSmartUPrint also leads on iOS requirement (8.1 vs 13.0). On update cadence, 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

SindohSmartUPrint is free to download; LK 워치키보드 costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

SindohSmartUPrint ships an update fortnightly, LK 워치키보드 every 3 weeks. The most recent releases landed on October 14, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 6 level

SindohSmartUPrint versus LK 워치키보드: the parameters behind the verdict, then further details
Parameter	SindohSmartUPrint	LK 워치키보드
Price	Free — better	$5.99
Positive reviews	—	58.3% of reviews
Update frequency	Fortnightly — better	Every 3 weeks
Ads	No	No
In-app purchases	No	No
Monetization	—	Paid
Devices	iPhone, iPad, iPod	iPhone, iPod, Apple Watch
Requires iOS	8.1 — better	13.0
Further details — not scored
Size	26 MB	1 MB
Age rating	17+	4+
Developer	SINDOH Co., Ltd.	Park Sung Cheol

In-app purchases

None

SindohSmartUPrint

No in-app purchases

None

LK 워치키보드

No in-app purchases

Questions

Is SindohSmartUPrint free?

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

Is LK 워치키보드 free?

LK 워치키보드 costs $5.99, with no in-app purchases.

Do SindohSmartUPrint or LK 워치키보드 have ads?

Neither SindohSmartUPrint nor LK 워치키보드 shows ads.

Which is updated more often, SindohSmartUPrint or LK 워치키보드?

SindohSmartUPrint ships an update fortnightly, and LK 워치키보드 every 3 weeks. Most recently, SindohSmartUPrint was updated on October 14, 2026 and LK 워치키보드 on October 25, 2026.