# Monorail

> Geometric logic puzzle game where players draw rails to connect stations in a single loop. (iPhone/iPad app by IBA Puzzles.)

- Source: https://appshunter.io/ios/app/monorail/id431435215 (this page in markdown: same URL + `.md`)
- Developer: [IBA Puzzles](https://appshunter.io/developer/431435218)
- Category: Games, Education, Puzzle
- Price: Free with in-app purchases
- Rating: 3.90/5 from 854 App Store ratings · 251 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 11 MB
- Languages: American English
- Released: 2011-05-04
- Data updated: 2026-08-23
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/monorail/id431435215/reviews.md

## What is Monorail?

MONORAIL: a new logic puzzle for touch screens.

 *  880 Puzzles
 *  Fosters development of visual/spacial reasoning skills
 *  Works great on iPad
 *  Simple to learn, challenging to master
 *  Puzzles range from easy to super-hard
 *  Designed by nerds, fun for all

Monorail is challenging and fun like sudoku, and entirely visual/spacial/geometric.  There are no numbers or symbols.  You solve puzzles by drawing rails to create a working monorail system.

The object of each puzzle is to create a single loop (closed path) of  rails connecting all stations so the monorail can circle around endlessly.

Kindergartners can solve the beginner levels.  Mathematicians from MIT have struggled to solve the most difficult ones.

Get on the Monorail train today!

We hope you enjoy.

-- IBA Puzzles (Glenn and Aaron Iba)

We welcome your feedback at ibapuzzles@gmail.com.

## Key features

- 880 unique puzzles
- Visual/spatial reasoning development
- Simple to learn, challenging to master
- Puzzles from easy to super-hard
- Geometric and visual gameplay
- Single loop puzzle objective

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| FULL VERSION OF MONORAIL | $0.99 | one-time |
| Rectangle Puzzles | $1.99 | one-time |
| Rectangle Puzzles (discounted) | $0.99 | one-time |
| Hexagon Puzzles | $1.99 | one-time |
| Hexagon Puzzles (discounted) | $0.99 | one-time |


## What do users think of Monorail?

Overall sentiment: positive

**Pros**

- 👍 Original and fun game
- 🧠 Challenging brain exercise
- 🕰️ Good time-killer
- 💻 Great for programmers
- 🕹️ Simple but addictive gameplay

**Cons**

- 🐛 Occasional crashes or freezes
- 🔍 Lack of hints or solutions
- 🔁 Repetitive or monotonous after a while
- 🖼️ Fuzzy or low-quality graphics
- 🔋 High battery consumption

**Commonly reported bugs**

- Swastika symbol appearing in level 12 on 6x6 free part
- In-app purchase issues when upgrading devices

**Most requested features**

- More free or additional levels
- Ability to save and resume progress
- Retina display support
- Hint system or solution guide
- Ability to view previously solved puzzles

## Recent user reviews (10 of 251)

All indexed reviews: https://appshunter.io/ios/app/monorail/id431435215/reviews.md

### 5/5 — Original review

*2025-06-13, version 1.3.1*

The game is changing but it’s fun thank you for making this game

### 4/5 — Active Brain

*2023-05-16, version 1.3.1*

This may seem a silly little game, but it’s brilliant for keeping one’s brain active in later years

### 5/5 — Fun game

*2019-08-03, version 1.3.1*

Need help on easy 6

### 5/5 — Monorail

*2019-06-22, version 1.3.1*

Great game to play.

### 5/5 — Fun, clever, original puzzle!

*2018-09-14, version 1.3.1*

Very enjoyable and relaxing puzzle.  I’ve tried many puzzle games, and this one is definitely one of favorites.  No internet required to play.

### 1/5 — Has swastika level 12 on 6x6 free part

*2017-03-25, version 1.2.1*

Has swastika level 12 on 6x6 free part. Deleting. Shouldn't have symbol anywhere in the game.

### 1/5 — I like it

*2015-06-27, version 1.2.1*

This is actually more polished than the description suggests, and certainly better than that odd first review. The puzzles are not too easy, not too tough. It looks like you get 215 puzzles for free; I've played through the 7x7 medium difficulty - about 2/3 - without a single glitch. The graphics are fairly basic, but not flat or unappealling; I like the animation after a successful solve. No sound yet, but this is a LOGIC PUZZLE, not an arcade game; if this is your thing, there are hours of puzzles here.

### 5/5 — A lot of fun

*2014-12-31, version 1.2.1*

Enjoy! Everything is very logical, certainly not a brain breaking. For $.99c had many hours of enjoyment. Would like to buy more and more.

### 1/5 — lame app

*2014-12-19, version 1.2.1*

doesn't work constantly freezes.

### 5/5 — Best game ever

*2014-03-07, version 1.2.1*

I've had this game for a long time and I love it! Always challenging but fun to solve.

## Frequently asked questions about Monorail

### What is Monorail?

Monorail is a logic puzzle game for touch screens where players draw rails to create a single loop connecting all stations. The goal is to design a monorail system that can circle endlessly. It features 880 puzzles designed to foster visual and spatial reasoning skills.

### How do you play Monorail?

The objective of each puzzle is to draw rails that form a single closed loop connecting all designated stations. The monorail must be able to travel continuously around this loop. There are no numbers or symbols involved; the gameplay is entirely visual and geometric.

### What kind of puzzles are in Monorail?

Monorail offers 880 puzzles that range in difficulty from easy enough for kindergartners to super-hard levels that have challenged mathematicians. The puzzles are entirely visual and geometric, focusing on spatial reasoning and logic rather than numbers or symbols.

### Is Monorail free to play?

The application is free to download and play. However, it does offer in-app purchases, which may provide additional content or features for players who wish to enhance their experience.

### What devices is Monorail compatible with?

The description specifically mentions that the app works great on iPad, indicating good compatibility with tablet devices. It is designed for touch screens, suggesting it is also available and functional on other mobile devices like smartphones.

## Version history (last 5 releases)

### 1.3.1 — 2017-11-14

This app has been updated by Apple to display the Apple Watch app icon.

FINALLY -- an update so Monorail will run in iOS11
[We heard your pleas and thank you for your past support]

EVERYTHING IS NOW FREE (AND WITH NO ADS)
All 3 puzzle packs (total of 880 puzzles) now completely free and unlocked!
This was the easiest way to do a quick update, and to make sure that previous paid users can still access all their puzzles. Thank you everybody for your past support.

BUG FIX
The nasty "CLEAR button" crash is now fixed.

IMPROVEMENTS
More reliable tapping on puzzle rails and scrolling menus.

### 1.2.1 — 2011-10-20

• 2 additional puzzle packs available for in-app-purchase:
 [one with 240 square and rectangle puzzles,
  the other with 240 Hex and Hex-Rectangle puzzles]
• Larger and more challenging puzzles included in the 2 new puzzle packs
• Discounted pricing on new puzzle packs (after solving all FullVersion puzzles)
• Ads to support the free version
   (removed after completing any in-app-purchase)
• New graphics
• Better support for sound (e.g. background music on iPod should now play ok)
• Option to disable "error alerts" (red coloring of constraint violations)
• Fixed bug where 1.0 users who previously purchased Full Version were incorrectly seeing ads in 1.2.  Our apologies!  
• Fixed crash-on-startup bug affecting iOS3 users.

Please e-mail any bug-reports, problems, or other feedback to ibapuzzles@gmail.com

### 1.2.0 — 2011-10-19

• 2 additional puzzle packs available for in-app-purchase:
   [one with 240 square and rectangle puzzles,
    the other with 240 Hex and RectangularHex puzzles]
• larger and more challenging problems included in the 2 new puzzle packs
• discounted pricing on new puzzle packs (after solving all FullVersion puzzles)
• ads to support the free version
   (removed after completing any in-app-purchase).
• new graphics
• better support for sound (background sound such as iPod should now work ok)
• option to disable the "error alerts"  (red coloring of constraint violations)

### 1.0.0 — 2011-07-01

+ In-app purchase for full level set (existing users get upgraded for free)
 + 180 all-new HEX puzzles
 + Sound effects
 + Options screen
 + Performance improvements
 + Undo/redo buttons

### 0.6.0 — 2011-06-15

o  New interactive tutorial
o  New graphics
o  Improved path-tracing
o  Hint text for constraint violations
o  Simplified puzzle navigation
o  Unlocking of puzzle levels
o  Improved tracking of progress solving puzzles

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## More apps by IBA Puzzles

- [MultiTarget](https://appshunter.io/ios/app/multitarget/id1491795156)

All apps by IBA Puzzles: https://appshunter.io/developer/431435218

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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 2026-08-23.*