Zeroki vs Color Duck Sort
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Zeroki
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Are you ready to challenge your mind and train your brain? Welcome to Zeroki, the ultimate math and logic puzzle game that will put your deductive skills to the test. The main rule is simple: the sum of all the numbers inside a zone must be exactly zero. Tap the numbers to switch them from addition (+) to subtraction (-) until you find the perfect balance. It sounds easy, but as the grids get bigger, the challenge grows! Features that will test your logic: • Story Mode: Hundreds of handcrafted levels ranging from easy to impossible. • Daily Challenges: Solve a unique puzzle every day, keep your streak alive, and earn special rewards. • Dynamic Mechanics: Master overlapping zones, unmovable Anchors, mysterious Hidden Cells, and Quantum Links that change together. • Hints & Strategy: Use lightbulbs to reveal hints when you are stuck on the hardest grids. • Relaxing & Minimalist: Clean design, soothing sounds, and haptic feedback for a highly satisfying mental workout. Whether you are a Sudoku master looking for a new brain teaser or just want to improve your math skills while relaxing, Zeroki is for you. Download now and make it to zero!
Color Duck Sort
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Color Duck Sort is a relaxing color sorting puzzle with a cozy duck twist—blending colorful sorting, clever matching, and smooth sorting flow into one calm, satisfying experience. A Cozy Duck Sorting Loop with No Timers and No Rush In Color Duck Sort, you sort colorful ducks into matching groups while a gentle sorting flow keeps everything moving. There are no timers, no pressure—just pure, satisfying gameplay that clears your head while you clear the board. If you love sorting puzzles with cute characters and cozy vibes, this one's for you. Sorting That Never Stands Still This isn't your average color sort. The flow keeps things moving, so timing, order, and space matter just as much as matching the right colors. Every duck moves, and every decision shapes the board. One Goal, Endless Ducks Every move is about keeping the sorting flow going, matching colors smartly, and making the most of a tight space. Tap to send ducks onto the conveyor and set the sorting in motion. Ducks ride the line until they find a group that matches, and gathering enough of the same color merges them into a finished set. The conveyor can only hold so many groups at once, so keep an eye on that space. If the belt fills up and you're out of moves, the round ends. Every open slot changes what you can do next, so leaving room is part of the puzzle. Plan ahead, control the flow, and enjoy that little rush every time a perfect match clicks into place. How to Play: ● Tap the truck to release ducks onto the conveyor. ● Sort and match the ducks by color to clear the line. ● Outsmart unique obstacles that keep every level fresh. Obstacles You'll Face: ● Hidden Ducks – Remove the ducks in front to reveal the Hidden Ducks! ● Duck Crate – Sort the required color to unlock this pool! ● Colored Pond – Only matching-colored ducks can enter this pool! ● Frozen Ducks – Sort the required number of ducks to break the ice! Handy Tools for When Things Get Tight When the conveyor starts to crowd, simple tools can help you find your way out. Undo lets you pull a duck off the belt and back into its box—perfect when you want to rethink your last move. Shuffle swaps the order of colors inside a single group, giving you a fresh setup without changing the board. And if you need a little extra breathing room, Extra adds a new slot right where you need it, opening up more options when space is running low. Easy to Pick Up, Relaxing to Come Back To Color Duck Sort starts simple, but the flow keeps every level feeling fresh as you go. Tighter layouts push you to make smarter sorting calls, while trickier duck ladders add a welcome layer of challenge. Some levels ask you to think further ahead, where one early choice shapes the whole board. Why You'll Love It A fresh duck sorting twist makes every match feel alive, and clean, low-randomness puzzles mean good planning actually pays off. It's perfect for a quick breather, with enough depth for longer sessions, and you can play offline whenever and wherever you like. It's a great fit for fans of color sorting, cute puzzle games, and calm brain games. Ready to sort the ducks and find your flow? Download Color Duck Sort and settle into a sorting puzzle built on calm strategy and satisfying progress. Sort the Ducks. Match the Colors. Clear the Board.
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Verdict
The clearest difference is in-app purchases: Zeroki at none against Color Duck Sort's 10. Color Duck Sort's advantage is ads (none vs shown). On price, 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. Color Duck Sort sells 10 one-off in-app purchases. Zeroki asks for nothing beyond the download.
| Parameter | Zeroki | Color Duck Sort |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Every 4 days |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 51 MB | 308 MB |
| Age rating | 4+ | 12+ |
| Developer | Pedro Iniesta | PLAY2EVER GAMES LIMITED |
In-app purchases
Zeroki
No in-app purchases
Color Duck Sort
- Royal Pack$154.99
- Royal Coin Pack$159.99
- Epic Pack$164.99
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- Epic Coin Pack$169.99
- Legend Pack$174.99
- Legend Coin Pack$179.99
- Ultimate Pack$184.99
- Ultimate Coin Pack$189.99
- Infinity Pack$194.99
- Infinity Coin Pack$199.99





