Monorail1.3.1 - App Store
You'll be able to see results in few seconds.
Publisher Description
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.
Version History 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. 1.3.1 11/14/2017 • 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 1.2.1 10/20/2011 • 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) 1.2.0 10/19/2011 + 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 1.0.0 07/01/2011 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 0.6.0 06/15/2011 * Improved (shorter) tutorial
* Simplified design
* Improved algorithm for turning rails on and off. You can now trace through with your finger to toggle multiple rails at a time. 0.2.2 05/11/2011 0.1.0 04/28/2011
About Monorail
The company that develops Monorail is Glenn Iba. The latest version released by its developer is 1.3.1.
To install Monorail on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-10-15 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the Monorail as malware if the download link is broken.
How to install Monorail on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the Monorail is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After Monorail is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
Program Details
System requirements
Download information
Pricing
Version History
version 1.3.1
posted on 2026-10-15
Version History 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. 1.3.1 11/14/2017 • 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 1.2.1 10/20/2011 • 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) 1.2.0 10/19/2011 + 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 1.0.0 07/01/2011 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 0.6.0 06/15/2011 * Improved (shorter) tutorial
* Simplified design
* Improved algorithm for turning rails on and off. You can now trace through with your finger to toggle multiple rails at a time. 0.2.2 05/11/2011 0.1.0 04/28/2011
version 1.3.1
posted on 2026-09-03
Version History This app has been updated by Apple to prepare for watchOS 27 compatibility. No new features are included.
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. 1.3.1 11/14/2017 • 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 1.2.1 10/20/2011 • 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) 1.2.0 10/19/2011 + 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 1.0.0 07/01/2011 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 0.6.0 06/15/2011 * Improved (shorter) tutorial
* Simplified design
* Improved algorithm for turning rails on and off. You can now trace through with your finger to toggle multiple rails at a time. 0.2.2 05/11/2011 0.1.0 04/28/2011
version 1.3.1
posted on 2026-08-13
Version History This update from Apple will improve the functionality of this app. No new features are included.
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. 1.3.1 11/14/2017 • 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 1.2.1 10/20/2011 • 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) 1.2.0 10/19/2011 + 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 1.0.0 07/01/2011 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 0.6.0 06/15/2011 * Improved (shorter) tutorial
* Simplified design
* Improved algorithm for turning rails on and off. You can now trace through with your finger to toggle multiple rails at a time. 0.2.2 05/11/2011 0.1.0 04/28/2011
version 1.3.1
posted on 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.
version 1.3.1
posted on 2017-11-14
Nov 14, 2017 Version 1.3.1
This app has been updated by Apple to use the latest Apple signing certificate.
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.
version 1.3.1
posted on 2017-11-14
Nov 14, 2017 Version 1.3.1
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.
version 1.3.1
posted on 2017-11-14
14 Nov 2017 Version 1.3.1
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.
version 1.3.1
posted on 2017-11-14
14 Nov 2017 Version 1.3.1
This app has been updated by Apple to use the latest Apple signing certificate.
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.
version 1.3.1
posted on 2017-11-14
Nov 14, 2017 Version 1.3.1
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.
version 1.2.1
posted on 2011-05-04
Disclaimer
Official App Store Link
We do not host Monorail on our servers. We did not scan it for viruses, adware, spyware or other type of malware. This app is hosted by Apple and passed their terms and conditions to be listed there. We recommend caution when installing it.
The App Store link for Monorail is provided to you by apps112.com without any warranties, representations or guarantees of any kind, so access it at your own risk.
If you have questions regarding this particular app contact the publisher directly. For questions about the functionalities of apps112.com contact us.
