Comparison

Pipe turn vs Calcudoku

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

Head to head
About

Pipe turn

Connect pipes by rotating them to form a complete network and power it up. This logic puzzle game offers multiple difficulty levels and can be played offline. Enjoy hours of engaging gameplay with intuitive controls.

Highlights
  • Rotate pipes to connect
  • Form a complete network
  • Multiple difficulty levels
  • Offline play supported
  • Automatic progress saving
  • Intuitive touch controls
Features
Read full description

Pipe Turn: Network Puzzle is a fun and challenging puzzle game that will test your logic and problem-solving skills. The goal is simple: tap to rotate the pipes and connect them all, forming a complete network. Each level requires careful thinking to ensure that every pipe is aligned correctly, creating a smooth flow from start to finish. The game offers multiple difficulty levels: easy, medium, and hard, making it suitable for both beginners and experienced puzzle lovers. Whether you want a quick relaxing challenge or a brain-teasing experience, Pipe Turn adapts to your pace and skill. You can play offline anytime, anywhere, without needing an internet connection. Your progress is automatically saved, so you can continue from where you left off without losing any completed levels. The intuitive touch controls make rotating and connecting pipes effortless and satisfying. Perfect for commuters, puzzle enthusiasts, and anyone who loves logic games, Pipe Turn: Network Puzzle is designed to provide hours of engaging gameplay. Can you rotate all the pipes and power up the entire network? Download now and put your puzzle-solving skills to the test!

About

Calcudoku

This logic puzzle game offers a unique approach to learning how to solve number grids. Instead of simply revealing answers, it provides intelligent, step-by-step guidance on logical strategies and note-taking to help you master the puzzles.

Highlights
  • Intelligent step-by-step explanations
  • Optional auto notes for cages
  • Intuitive note-taking interface
  • Variety of arithmetic operations
  • Grids for all skill levels
  • Offline-first architecture
  • Dark mode support
Features
Read full description

If you love Sudoku but are looking for a deeper challenge, or if you simply enjoy games that give your brain a real workout, Calcudoku is the ultimate logic puzzle. It combines the grid-filling deduction of Sudoku with simple arithmetic, creating a deeply satisfying balance of mental math, strategy, and problem-solving. Whether you want to sharpen your focus, keep your mind agile during a quick break, or master complex logical deduction, Calcudoku offers endless replayability for beginners and puzzle veterans alike. --- WHAT IS CALCUDOKU? --- Also known as Mathdoku or KenKen®, Calcudoku challenges you to solve a grid using logic and arithmetic: • Grid: Fill an N x N grid so that every row and column contains the numbers 1 through N exactly once without repeating. You choose the grid size to solve, anywhere from a 3x3 to a 9x9. • Cages: Outlined groups of cells (cages) each display a target number and an arithmetic operator. • Math: The numbers in each cage must combine using its operator (+, −, ×, ÷) to hit the target. Numbers can repeat within a cage as long as they stay in different rows and columns. It’s the ultimate combination of mental math, pattern recognition, and pure deduction. --- THE SMART DIFFERENTIATOR --- Many puzzle apps ruin the fun when you get stuck by simply filling in a random cell for you when requesting help. Our app takes a different approach: it teaches you how to solve it. If you hit a wall, our built-in helper analyzes your exact grid state and explains the logical next step. The engine guides you through genuine deduction strategies—showing you how to cross-reference overlapping cages, prune cell candidates, and leverage your notes so you can solve the grid completely on your own. --- KEY GAME FEATURES --- • Intelligent Explanations: Step-by-step guidance focused on note-taking, elimination strategies, and candidate pruning rather than giving away answers. • Optional Auto-Notes: The settings tab provides the option to jump into a puzzle with the initial candidate notes based on cage arithmetic. Skip the mundane and get right to the logic! • Smooth Input: Rapidly input answers and edit candidate notes with an intuitive, fluid UI built for mobile screens. • Complete Arithmetic Variety: Play grids featuring addition, subtraction, multiplication, and division. • All Skill Levels: Progress from quick 3x3 warmups to grueling 9x9 logic grids. • Polished Interface: Full native dark mode support, crisp typography, and seamless offline play - no Wi-Fi required. Master the grid, elevate your deduction skills, and train your brain with a game that actually makes you a better solver.

Screenshots

Pipe turn4 screens
Calcudoku4 screens

Verdict

The call

The clearest difference is rating: Calcudoku at 5.0 against Pipe turn's 4.0. Calcudoku also leads on in-app purchases (none vs 1) and ratings volume (4 vs 1). On price, update cadence, ads 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. Pipe turn sells 1 one-off in-app purchase. Calcudoku asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Calcudoku holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 4 respectively.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
Pipe turn versus Calcudoku: the parameters behind the verdict, then further details
ParameterPipe turnCalcudoku
PriceFreeFree
Rating4.0 (1 ratings)5.0 (4 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings14 — better
Update frequencyEvery 3 weeksEvery 3 weeks
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.0 — better
Further details — not scored
Size29 MB104 MB
Age rating12+4+
DeveloperHuy HuynhLogicSmith

Customer experience

Pipe turn

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Calcudoku

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Pipe turn

One-time1
  • Remove Ads$5.99
None

Calcudoku

No in-app purchases

Questions

Is Pipe turn free?
Pipe turn is free to download, with in-app purchases available.
Is Calcudoku free?
Calcudoku is free to download, with no in-app purchases.
Which has better reviews, Pipe turn or Calcudoku?
Calcudoku is rated higher. Pipe turn averages 4.0 out of 5 from 1 ratings, while Calcudoku averages 5.0 from 4 ratings.
Do Pipe turn or Calcudoku have ads?
Both Pipe turn and Calcudoku show ads.
Which is updated more often, Pipe turn or Calcudoku?
Pipe turn ships an update every 3 weeks, and Calcudoku every 3 weeks. Most recently, Pipe turn was updated on November 5, 2026 and Calcudoku on October 31, 2026.

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