Rudoku vs C4K
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Rudoku
This is a challenging number and logic puzzle game with multiple modes and difficulty levels. Track your progress with detailed stats and earn achievements. Enjoy endless playability with unique puzzles and accessibility features like dark mode.
- Multiple game modes
- Adjustable difficulty levels
- Variable board sizes
- Detailed gameplay stats
- Multiple achievements
- Dark and light color modes
- No in-app purchases
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Rudoku is an expert level puzzle challenge for fans of numbers and logic games. Multiple game modes, difficulty levels, and board sizes will keep your brain stimulated as you decipher the solutions to each puzzle. Maintaining high gameplay stats and earning multiple achievements will make Rudoku your go-to brain teaser. Take your time and see how long it takes you in Relaxed Mode. Speed and accuracy come into play in Race Mode when your goal is to solve the puzzle before time runs out. Endless Mode makes each game board increasingly difficult to solve. KEY FEATURES • Endless Playability - Puzzles will never repeat while multiple game modes, difficulty levels, and board sizes keep the challenge fresh and your brain sharp. • Game Play Stats - In game stats will let you know the duration of each game, how many moves you made, your win percentage, and more. • Dark and Light Colour Modes - This great accessibility feature makes the screen easier on your eyes in the dark. • Multiple Achievements - Earn awards and Game Centre points a number of different ways including level achievements and stats challenges. • No In-App Purchases - Pay once and play. No need to waste time on ads or pesky in-app purchasing gimmicks.
C4K
This app teaches children aged 6-12 fundamental programming concepts through engaging games and hands-on exercises. It features nearly 2,000 levels across 22 games, covering drag-and-drop mechanics, debugging, loops, functions, and coordinates in a gender-neutral, intuitive interface.
- Drag-and-drop coding blocks
- Debugging and sequence logic
- Loop and function concepts
- Coordinate-based puzzles
- Hundreds of challenges
- Offline play
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C4K-Coding4Kids is an educational app designed to teach children aged 6 to 12 how to code and develop programming skills. This app provides kids with fundamental and advanced programming knowledge through entertaining activities, games, and hands-on exercises. With nearly 2,000 engaging levels across 22 different games, what does the app have to teach children about basic programming concepts? ● Basic is the simplest gameplay mode of the game, allowing kids to familiarize themselves with the drag-and-drop mechanics of Coding4Kids. In Basic mode, players drag coding blocks directly onto the gameplay screen to help characters reach the end point and complete the game. ● Sequence is the second gameplay mode. From the Sequence mode onwards, children will no longer directly drag coding blocks onto the screen but instead drag them onto a side bar. The Sequence mode introduces kids to this gameplay style and the sequential execution of coding blocks from top to bottom. ● Debugging introduces a new gameplay style where coding blocks are pre-placed but may be redundant or in the wrong order. Players need to fix the order of blocks and remove any unnecessary ones to complete the level. Debugging helps children become familiar with deleting and rearranging coding blocks and understanding how programs run more clearly. ● Loop introduces a new block alongside basic coding blocks, which is the looping block. The looping block allows for the repetition of commands within it a certain number of times, saving the need for multiple individual commands. ● Similar to Loop, Function introduces kids to a new block called the function block. The function block is used to execute a group of blocks placed inside it, saving time in dragging and dropping repetitive blocks and creating more space within the program. ● Coordinate is a new type of game where children learn about two-dimensional space. Coding blocks are transformed into coordinate blocks, and the task is to navigate to the corresponding coordinates to complete the level. ● Advanced is the final and most challenging type of game in which all blocks except coordinate blocks are used. Kids must apply what they have learned in previous modes to complete advanced levels. What will children learn through this game? ● Children learn key coding concepts while playing educational games. ● Help children develop logical thinking. ● Hundreds of challenges spread across different worlds and games. ● Covers basic kids coding and programming concepts such as loops, sequences, actions, conditions, and events. ● No downloadable content. Kids can play all games offline. ● Easy and intuitive scripting, with a kid-friendly interface. ● Games and content for boys and girls, gender neutral, without restrictive stereotypes. Anyone can learn to program and start coding! ● With very little text. Content intended for children ages 6 and up.
Screenshots
Verdict
The clearest difference is price: Rudoku at Free against C4K's $2.99. Rudoku also leads on rating (4.7 vs 4.0) and ratings volume (19 vs 1). C4K's advantage is review sentiment (100% vs 85%) and iOS requirement (11.0 vs 18.0). On 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
Rudoku is free to download; C4K costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Rudoku holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: Rudoku has 19 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 85% of Rudoku's written reviews are positive against 100% of C4K's, so the app with the better star average is not the one people write more warmly about.
| Parameter | Rudoku | C4K |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 4.7 (19 ratings) — better | 4.0 (1 ratings) |
| Positive reviews | 84.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 19 — better | 1 |
| Update frequency | Every 3 weeks | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad | iPhone, iPod, Mac — better |
| Requires iOS | 18.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 15 MB | 995 MB |
| Age rating | 4+ | 4+ |
| Developer | Cerebral Gardens | Dai Phan |
Customer experience
Rudoku
C4K
In-app purchases
Rudoku
No in-app purchases
C4K
No in-app purchases









