# Monster Numbers vs Plumber

The clearest difference is price: Plumber at Free against Monster Numbers's $2.99. Plumber also leads on rating (4.7 vs 4.4). Monster Numbers's advantage is in-app purchases (none vs 8) and ads (none vs shown). On ratings volume, update cadence and device support there is nothing between them.

Plumber is free to download; Monster Numbers costs $2.99 up front. Plumber sells 8 one-off in-app purchases. Monster Numbers asks for nothing beyond the download.

Plumber holds the better App Store score, 4.7 against 4.4. Both are backed by a comparable volume of ratings — 87 and 56 respectively. Written reviews complicate that: 92% of Monster Numbers's written reviews are positive against 76% of Plumber's, so the app with the better star average is not the one people write more warmly about.

Monster Numbers ships an update every 5 months, Plumber every 4 months. The most recent releases landed on October 26, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Monster Numbers | Plumber |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [4.4 (87 ratings)](https://appshunter.io/ios/app/monster-numbers-mental-math/id771387168/reviews) | **[4.7 (56 ratings)](https://appshunter.io/ios/app/plumber-pipe-connect-puzzle/id1252186621/reviews)** |
| Number of ratings | **87** | 56 |
| Positive reviews | **92.3% of reviews** | 75.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 4 months** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 173 MB | 109 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Didactoons Games SL](https://appshunter.io/developer/1457185685) | [Flowriz LLC](https://appshunter.io/developer/1246562246) |

## What reviewers say

### Monster Numbers

[App page](https://appshunter.io/ios/app/monster-numbers-mental-math/id771387168)

This engaging math game helps children aged 4-14 improve their arithmetic skills. It adapts to each child's age and learning level, offering a mix of fun activities and skill-testing challenges. Designed by teachers, it aims to make learning math enjoyable and support school routines.

**Highlights:** Adaptive difficulty by age, Mix of fun and skill-testing levels, Designed by teachers, Supports school routines, Improves math skills

**Features:** macOS Compatibility

**In-app purchases:** none


### Plumber

[App page](https://appshunter.io/ios/app/plumber-pipe-connect-puzzle/id1252186621)

Connect pipes to guide water to a thirsty flower in this free puzzle game. Strategically rotate pipe pieces to create a complete path and solve increasingly challenging levels. Enjoy HD graphics and intuitive gameplay with a helpful hint system.

**Highlights:** Connect pipes to deliver water, Rotate pipe pieces, 120 levels, Intuitive gameplay, Hint system, HD graphics

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pack 1 | $0.99 | one-time |
| Purchase Chicago | $0.99 | one-time |
| Purchase New York | $0.99 | one-time |
| pack 2 | $1.99 | one-time |
| pack3 | $2.99 | one-time |
| pack4 | $9.99 | one-time |
| Remove Ads | $9.99 | one-time |
| English | $9.99 | one-time |


## Frequently asked questions

### Is Monster Numbers free?

Monster Numbers costs $2.99, with no in-app purchases.

### Is Plumber free?

Plumber is free to download, with in-app purchases available.

### Which has better reviews, Monster Numbers or Plumber?

Plumber is rated higher. Monster Numbers averages 4.4 out of 5 from 87 ratings, while Plumber averages 4.7 from 56 ratings.

### Do Monster Numbers or Plumber have ads?

Plumber shows ads; Monster Numbers does not.

### Which is updated more often, Monster Numbers or Plumber?

Monster Numbers ships an update every 5 months, and Plumber every 4 months. Most recently, Monster Numbers was updated on October 26, 2026 and Plumber on October 29, 2026.

---

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