CMY vs DeckKeeper
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
CMY
A unique puzzle game where players place colored blocks on a grid. Mixing colors to black clears squares, allowing for new placements. Features multiple color models and competitive leaderboards.
- Color mixing mechanics
- Grid-based block placement
- Color model selection
- Grid rotation
- Game Center leaderboards
- Achievements
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CMY is an interesting mix of several game genres, with a twist. The objective of the game is to place blocks with shapes we all know on a grid. When placing the block, the colours mix like ink. Mixing colors to black clears a square and lets you place new blocks. You can rotate the grid to fit even more blocks in different orientations. Compete with other players using Game Center. Obtain achievements, or just compete for the highest score. The game has three different color models. One is based on the way ink works, where cyan, magenta and yellow make black. Red, green and blue work like your computer monitor, and mix to white. Red, yellow and blue are the colors as they are taught in primary school. Choose whichever scheme you find easier to play! Still not convinced? Look at our website for a gameplay video.
DeckKeeper
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With DeckKeeper, you can create and customize your own decks of cards by specifying their names and descriptions. When using a deck, the application automatically shuffles the cards and displays them sequentially on the screen of your device. You can simply tap the screen to move to the next card and DeckKeeper will announce its name. This app provides the ultimate gaming experience. You no longer have to waste time shuffling cards or choosing the next card - DeckKeeper does it all automatically, allowing you to focus on the game itself.
Screenshots
Verdict
The clearest difference is ads: CMY at none against DeckKeeper's shown. DeckKeeper's advantage is update cadence (every 3 weeks vs every 2 months). On price, in-app purchases, device support and iOS requirement 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. CMY sells 2 one-off in-app purchases and DeckKeeper sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
CMY ships an update every 2 months, DeckKeeper every 3 weeks. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.
| Parameter | CMY | DeckKeeper |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 1 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Emiel Lensink | Pavel Yashin |
In-app purchases
CMY
- Red Green Blue$0.99
- Red Yellow Blue$0.99
DeckKeeper
- Remove limits$2.99
- Remove Ads$4.99









