# Pipes vs Calcudoku

The clearest difference is in-app purchases: Calcudoku at none against Pipes's 8. Calcudoku also leads on ratings volume (4 vs 1). Pipes's advantage is ads (none vs shown). On price, rating, update cadence and device support there is nothing between them.

Both are free to download. Pipes sells 8 one-off in-app purchases. Calcudoku asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Pipes against 5.0 for Calcudoku. Both are backed by a comparable volume of ratings — 1 and 4 respectively.

Pipes ships an update every 2 weeks, Calcudoku every 3 weeks. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Pipes | Calcudoku |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/pipes-connect-the-flow/id6740172032/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/calcudoku-math-logic-puzzles/id6772270032/reviews) |
| Number of ratings | 1 | **4** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 43 MB | 104 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Lee Clayberg](https://appshunter.io/developer/1580321355) | [LogicSmith](https://appshunter.io/developer/6772270034) |

## What reviewers say

### Pipes

[App page](https://appshunter.io/ios/app/pipes-connect-the-flow/id6740172032)

A thrilling puzzle game where players strategically rotate pipe pieces to create a continuous path and prevent water from spilling. It offers progressively challenging levels across six different puzzle sizes, testing speed and reflexes.

**Highlights:** Rotate pipe pieces, Form continuous paths, Prevent water leaks, Timed challenges, Six puzzle sizes (3x3 to 8x8), Progressively challenging levels

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pipes - Double Trouble | $0.99 | one-time |
| Toxic Haze | $0.99 | one-time |
| Pipes - Hydro Trio | $0.99 | one-time |
| Pipes - Hidden Depths | $0.99 | one-time |
| Pipes - Flowing Frenzy | $0.99 | one-time |
| Pipes - Dark Mode | $0.99 | one-time |
| Pipes - Premium | $2.99 | one-time |
| Pipes - All Level Packs | $3.99 | one-time |


### Calcudoku

[App page](https://appshunter.io/ios/app/calcudoku-math-logic-puzzles/id6772270032)

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:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Pipes free?

Pipes 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, Pipes or Calcudoku?

Pipes and Calcudoku are both rated 5.0 out of 5 on the App Store, from 1 and 4 ratings respectively.

### Do Pipes or Calcudoku have ads?

Calcudoku shows ads; Pipes does not.

### Which is updated more often, Pipes or Calcudoku?

Pipes ships an update every 2 weeks, and Calcudoku every 3 weeks. Most recently, Pipes was updated on October 30, 2026 and Calcudoku on November 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*