Comparison

K vs DuoBoard

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

Head to head
About

K

Features
Read full description

A fresh block-matching experience inspired by the beauty of Hangul. Welcome to K-Mahjong. K-Mahjong is a relaxing mahjong-style block matching game where you clear the board by selecting two identical tiles. Built on the familiar charm of classic matching puzzle gameplay, it introduces a distinctive twist with Hangul-inspired tile designs, creating an experience that feels both comforting and refreshingly new. As Korean culture continues to reach audiences around the world, Hangul has become more than just a writing system. It carries a unique visual identity and cultural charm of its own. K-Mahjong brings that feeling into a puzzle game, turning Korean letter-themed tiles into the heart of a calm and engaging matching experience. Each level is designed to feel intuitive and easy to enjoy, whether you want to play for a few minutes during a break or unwind at the end of the day. The simple act of finding matching tiles and clearing the board creates a satisfying rhythm that is easy to get into and pleasant to return to. Beyond the puzzle itself, K-Mahjong also offers a more meaningful layer for global players. With multilingual support and word meaning features, players can naturally discover Hangul and Korean vocabulary while they play. It’s a light and enjoyable way to experience Korean language and culture through gameplay. As you continue, you’ll discover more layouts, more variety, and more ways to enjoy each stage. Helpful items make the game feel smooth and accessible, while unlimited levels keep the fun going without pressure. Why players enjoy K-Mahjong • A unique block matching puzzle built around Hangul-themed tiles • Simple gameplay: match 2 identical blocks to clear the board • Relaxing mahjong-style puzzle flow • Unlimited levels for long-lasting enjoyment • Helpful items such as hints and shuffle options • Multilingual support for players around the world • A fun way to discover Korean words and meanings If you enjoy calm matching puzzles and love the charm of Korean culture, K-Mahjong offers a unique and memorable way to play.

About

DuoBoard

Features
Read full description

DuoBoard is a colorful puzzle game where two players play inside the same match from two different sides. This is not a standard duel. This is not a normal shared board. This is a linked puzzle experience where every move changes the other world. In DuoBoard, each player sees a different board, but both boards belong to the same puzzle. Clear tiles, trigger effects, unlock bridges, and send powerful link events across the match. What helps your partner in co-op can disrupt your rival in versus. The result is a fresh puzzle experience built around interaction, reaction, and surprise. WHY DUOBOARD FEELS DIFFERENT Most multiplayer puzzle games focus on speed, score, or identical boards. DuoBoard changes that. Here, both players are connected through asymmetric gameplay: - your board is different - your actions matter on the other side - every match feels dynamic - the puzzle evolves through linked reactions CORE FEATURES Two Boards, One Puzzle Each player sees a different board, but both are part of the same connected match. Asymmetric Linked Gameplay Your actions can reveal, boost, block, shift, or transform the other board. Co-op and Versus Modes Work together to complete shared objectives or compete in puzzle battles where every move affects your rival. Daily Link Challenges Come back each day for a fresh puzzle condition with special linked-board effects. Solo Twin Practice Play and learn the linked-board system in a solo mode designed for practice and strategy. Colorful Cartoon World Enjoy a bright, polished, premium cartoon style with playful boards, fun effects, and a lively interface. Designed for iPhone and iPad DuoBoard is built to feel great on both devices, with layouts that adapt beautifully to larger screens. WHY YOU’LL LOVE IT - A truly different multiplayer puzzle idea - Fun co-op and versus gameplay - Interactive linked-board mechanics - Colorful cartoon visuals - Fresh daily puzzle challenges - Fully playable for free - Great on iPhone and iPad If you enjoy puzzle games, colorful strategy, and new multiplayer ideas, DuoBoard offers a fresh experience where two players share one connected puzzle from different perspectives.

Screenshots

K4 screens
DuoBoard4 screens

Verdict

The call

The clearest difference is in-app purchases: DuoBoard at none against K's 1. DuoBoard also leads on ads (none vs shown). K's advantage is iOS requirement (15.0 vs 26.4). On price 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. K sells 1 one-off in-app purchase. DuoBoard asks for nothing beyond the download.

Scorecard3 real differences · 3 level
K versus DuoBoard: the parameters behind the verdict, then further details
ParameterKDuoBoard
PriceFreeFree
Update frequencyEvery 2 days—
AdsYesNo — better
In-app purchasesYesNo — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better26.4
Further details — not scored
Size42 MB5 MB
Age rating4+4+
DeveloperJiwon LeeSaid Lamaarague

In-app purchases

1 purchases

K

One-time1
  • K-Mahjong Premium$19.99
None

DuoBoard

No in-app purchases

Questions

Is K free?
K is free to download, with in-app purchases available.
Is DuoBoard free?
DuoBoard is free to download, with no in-app purchases.
Do K or DuoBoard have ads?
K shows ads; DuoBoard does not.

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