# Xumbers42 — The Math Puzzle Game

> Real-time online math board game similar to Scrabble but with numbers. (iPhone/iPad app by Marc Konvisser.)

- Source: https://appshunter.io/ios/app/xumbers42/id1133561131 (this page in markdown: same URL + `.md`)
- Developer: [Marc Konvisser](https://appshunter.io/developer/614878501)
- Category: Games, Education, Board, Puzzle
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 13.4 · 1 MB
- Languages: English
- Released: 2016-09-04
- Data updated: 2026-07-07
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/xumbers42/id1133561131/reviews.md

## What is Xumbers42?

Xumbers42 (Xumbers for Two) is a real-time online math board game. It’s similar to Scrabble except that you make Xumbers Words made from numbers instead of letters.

Players comments: “really, really fun”, “makes you think”, “kind of addictive”, “playing games, having fun and getting kind of competitive with math”.

A Xumbers Word is a string of digits for which the number represented by the last one or two digits is the sum of the previous digits. For example, 426 is a Xumbers Word because the last number 6 is the sum of the previous digits 4 and 2 (6 = 4 + 2), and 42612 is a Xumbers Word because 12 is the sum of the previous digits 4, 2 and 6 (12 = 4 + 2 + 6).

When it’s your turn, your goal is to extend Xumbers Words already on the board using some (or all) of the 7 tiles in your tray. 

Get your MATH game on with Xumbers42.

## Key features

- Real-time online multiplayer
- Math-based word creation
- Extend existing number sequences
- Strategic tile placement
- Competitive gameplay


## Frequently asked questions about Xumbers42

### What is Xumbers42?

Xumbers42 is a real-time online math board game where players create number sequences called Xumbers Words. It's a competitive game that requires strategic thinking and mathematical understanding.

### How do you play Xumbers42?

Players extend existing Xumbers Words on the board using tiles from their tray. A Xumbers Word is a string of digits where the last one or two digits sum up to the preceding digits.

### Is Xumbers42 suitable for all ages?

Xumbers42 has an age rating of 4+, making it accessible for a wide range of players. The game encourages mathematical thinking and problem-solving skills.

### Can I play Xumbers42 offline?

The description specifies Xumbers42 as a 'real-time online math board game,' suggesting that an internet connection is required for gameplay.

### What devices support Xumbers42?

Xumbers42 is supported on iPhone, iPad, and iPod devices, indicating broad compatibility within the Apple ecosystem.

### How often is Xumbers42 updated?

The latest version of Xumbers42 was released on August 8, 2020. The app has seen updates since its initial release on September 4, 2016.

### What do players think of Xumbers42?

Player comments describe Xumbers42 as 'really, really fun,' 'makes you think,' 'kind of addictive,' and 'getting kind of competitive with math,' indicating a positive user sentiment.

### Does Xumbers42 have ads?

The provided data does not specify whether Xumbers42 contains advertisements. However, it is listed as free and does not mention in-app purchases.

## Version history (last 1 release)

### 2.0.1 — 2020-08-08

Updated Xumbers42 to comply with Apple current guidelines.Fixed tile recycling bug.
Chat now displays all chats from all games between the players of the current game.
Improved chat to indicate when there are unread chats.
Fixed rubber banding bug. 
Improved lost password retrieval process. 
Added leaderboard to Help Menu.
New legal agreements.

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## More apps by Marc Konvisser

- [xumbers42 V2024](https://appshunter.io/ios/app/xumbers42-v2024/id6478638483)

All apps by Marc Konvisser: https://appshunter.io/developer/614878501

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-07.*