Crowd Sort vs Nudoku
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Crowd Sort
Engage your mind with a vibrant puzzle game where you sort colored characters into matching tubes. Enjoy smooth gameplay, unlimited undos, and a variety of challenging levels. Relax and strategize at your own pace with no time limits.
- One-tap color sorting control
- Unlimited undo functionality
- Smooth and continuous puzzle gameplay
- Night Mode option
- Numerous unique sorting levels
- No time limit
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Crowd Sort is a fun and challenging puzzle game! Try to sort the colored guys in the tubes until all colors are in the same color tubes? it's like a water sort puzzle. Be satisfied and entertained as you see the swarm of the crowd moves quickly to their color tubes. FEATURES: - One tap color sorting control - Unlimited undo - Extremely smooth puzzle gameplay. No need to wait for the crowd to finish moving, you can queue up multiple moves with that big brain. - Night Mode. You can enable/disable it from the settings panel - A lot of unique sorting levels - Easy to play, difficult to master - No time limit puzzle game, just enjoy the game and play sorting puzzle as long as you want HOW TO PLAY: - To begin sorting - Tap any lane to move the crowd to another color tubes, - The rule is that people only move to the other lane if it is empty or they can see the same colored crowd runners at the end of the new lane. - If you get stuck or misclick while sorting, you can always undo your move or restart the puzzle game level! - Enjoy and watch the hordes of tiny people collide and interact as they flow like water color sorted from one lane to the next color tubes. Crowd Sort is a really fun and challenging brainteaser. Download sorter brain teaser game! Sort it now!
Nudoku
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This is a Sudoku that can be played with different types of numbers, emojis, drawings or colours. Games can be imported and exported, and a free filling mode allows to set up a game manually. Notes can be used to show which values may match in a position. To solve the puzzle, you have to fill all cells so that in each row, column, and quadratic block of 9 cells each of the 9 symbols appears exactly once. The game offers 4 difficulty levels from easy (around 30 positions left filled) to highest difficulty level with normally around 21 positions left filled. As an additional feature there is a chinese character training mode, which presents the thousand characters of the classical Qianziwen primer in simplified and traditional characters in 125 verses of 8 characters plus the verse number in simple chinese numerals, complete with pinyin transscription, english translation and voice reading the characters. The game offers downloadable illustrations to vary the design. More designs will follow. The hint button either shows errors in already filled cells or, if everything is correct, offers one new correct filling. The note edit button in the middle toggles the note edit mode. With this, instead of the value of the cell possible candidates can be selected that are then shown in a grid inside the cell. Notes that are or become infeasible will be suppressed in the display. In the free filling mode, all cell notes can be activated per menu at once to compose a complete game setup. If any of the note displays become empty, no solution is left. The game will have a single solution when all remaining notes show a single option. In free fill mode, the hint button also checks if a board with a single solution has been reached. In this case, the background turns green and the play button is activated to turn the free fill board into a normal game. Both free filled boards and normal games can be saved. loaded and shared. When a following game cannot immediately be presented after finishing one, for example due to a change in the game level, the game shows a status bar that indicates where across the 81 positions the current iteration starts to look for a solution. Since a game is only valid if there is one single solution possible, it has to retry when more than one solution is found. Normally this is done in the background while playing, but occasionally under some circumstances it will show. The game will play a a couple of notes every second with a pitch from a curated scale that indicates in which of the 9 blocks the current iteration starts. When the music stops that normally means that a single solution is near because the current iteration is not being aborted. Setting up a Sudoku game is a mathematically interesting problem. The more interesting a game setup gets, that is, the less cells are left filled while still having a single solution, the longer it takes to verify this. On the other hand, fewer cells left filled do not guarantee a more difficult path to the solution.
Screenshots
Verdict
The clearest difference is ads: Nudoku at none against Crowd Sort's shown. Nudoku also leads on update cadence (every 3 weeks vs every 2 months). Crowd Sort's advantage is iOS requirement (13.0 vs 17.6). On price, 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
Both are free to download. Crowd Sort sells 1 one-off in-app purchase and Nudoku sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Crowd Sort ships an update every 2 months, Nudoku every 3 weeks. The most recent releases landed on November 4, 2026 and October 28, 2026 respectively.
| Parameter | Crowd Sort | Nudoku |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (12K ratings) — better | — |
| Positive reviews | 68.5% of reviews | — |
| Number of ratings | 12K — better | — |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 13.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 243 MB | 16 MB |
| Age rating | 12+ | 12+ |
| Developer | AI Games FZ | PETER KOLLNER |
Bugs and requests
Crowd Sort
Reported bugs
3 issues- Certain levels appear unsolvable
- Game freezing or becoming unresponsive
- Issues with updated graphics and UI
Requested features
4 requests- Hint or nudge feature for stuck levels
- Horizontal gameplay mode
- More customization options for characters
- Ability to earn/purchase extra lanes
Nudoku
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Crowd Sort
- No Ads$3.99
Nudoku
- Autumn 2025$0.99
- Halloween 2025$0.99
- Qianziwen Training Mode$1.99









