Open Source iPhone Apps List – Real App Store Code Examples!

open source iphone apps

Welcome to the sixth iteration of the open source iPhone and iPad apps list.  A For those that have seen similar listings on other sites using the exact wordings, and links below welcome to the source for the original list.  Also included are some open source iPad apps, and universal open source iOS apps.

It can be tough to learn how to develop, especially when it comes to finding complete examples.  That’s why I put this list together.  Each of these open source iPhone apps is not just open source, but has been in the app store, and all but one are in there right now.  So if you’re looking for an example of some real apps here they are.

Last Update: 4/19/2012

Before going on to the apps, please share these open source iOS apps with your Twitter followers by clicking here.
If you are just interested in games you can check out the open source iOS game list.
If you are looking to add a list to your site rather than simply copy this list why not write a post about your favorite apps from this list, and link back to this page?  I’ll even give you a link back in the form of a trackback.

The Open Source iPhone Apps List

Here is the open source iphone app list in alphabetical order:

1. 2012 OlympicsApp displaying timetable for 2012 Olympic events. (source code)

2. Aeropack - A steampunk themed retro-platform game created using GameSalad. (iTunes link) (source code)

3. Alphabet Blocks - An educational toy featuring letter blocks created with using Cocos2D. (iTunes link) (source code)

4. AntiMapLog - An app for recording your own data (location, time, etc.) over a period of time. (iTunes link) (source code)

5. Barcode Scanner - An example app that is part of the Zxing barcode reader project. (iTunes link) (source code)

6. Battle For WesnothFantasy themed turn based tactical RPG game available on several platforms and now the iPhone/iPad. (iTunes link) (source code)

7. Bubbsy - Cocos2D based game using Box2D fixes and Tiled level creation. (iTunes link) (source code)

8. Camlingual - App that can read and translate signs using sophisticated OCR. (iTunes link) (source code)

9. Canabalt - Popular run and jump type game. (iTunes link) (source code)

10. Clearis - Cocos2D based puzzle game. (iTunes link) (source code)

11. Climbers2D finger dragging climbing game created with Cocos2D. (iTunes link) (source code)

12. ColloquyConversion of the most popular Mac IRC client to the iPhone. (iTunes link) (source code)

13. ComicFlowBeautiful comic book reader for iPad. (iTunes link) (source code)

14. Countitout - A generic counting app. (iTunes link) (source code)

15. Cryptose A cryptogram puzzle game made with the Marmalade (formerly Airplay) SDK. (iTunes link) (source code)

16. Diceshaker - Dice rolling simulator designed for role-playing game enthusiasts. (iTunes link) (source code)

17. Dollar Bets - App for recording personal bets placed with your friends. (iTunes link) (source code)

18. Doom Classic - Classic 3D first person shooter. (iTunes link) (source code)

19. Dozuki Interactive repair manual app from the guys at iFixit. (iTunes link) (source code)

20. Ecological Footprint Calculate, display, and record your ecological footprint. (iTunes link) (source code)

21. Edgy App for demonstrating the basics of OpenCV and the iPhone. (source code)

22. Edhita iPad text editor with file transfer support and browser previewing. (iTunes link) (source code)

23. Fosdem- Calendar app for the Fosdem open source conference. (source code)

24. FreshbooksOpen Source iPhone app that enables usage of Freshbooks web invoicing software from your iPhone. (iTunes link) (source code)

25. Frotz - Open Source interactive fiction app with support for the Z-machine format. (iTunes link) (source code)

26. Gas Guide - Guides for helping medical students study built from the Gas guide source. (iTunes link) (source code)

27. GorillasClassic Worms/iShoot turn based shooter type game converted to iPhone from basic. Utilizes Cocos2D. (iTunes link) (source code).

28. HoxChess – A Xiangqi (chinese chess) game. (iTunes link) (source code)

29. iLabyrinth - Puzzle game written in Cocos2D requiring you to navigate through increasingly difficult labyrinths. (iTunes link) (source code)

30. iStrobeTurns the iPhone 4 flash into a highly configurable strobe light. (iTunes link) (source code)

31. iWVU - Official iPhone application of West Virginia University. (iTunes link) (source code)

32. Last.fmSoftware that enables usage of the Last.fm platform for personal radio stations. (iTunes link) (source code)

33. Little Go - An iOS version of the game of Go featuring a tough AI opponent. (iTunes link) (source code)

34. Mobilesynth - A monophonic synthesizer designed for live performance. (iTunes link) (source code)

35. MoleculesAllows you to view 3D models of molecules and manipulate them through touch. (iTunes link) (source code)

36. MoverAllows you to transfer stuff from one iPhone to another by “flicking” it to the other device. (iTunes link) (source code)

37. Mugician - iPad music synthesis app being used by various musicians in real life gigs. (iTunes link) (source code)

38. Natsulion - A basic twitter client converted from mac. (iTunes link) (source code)

39. News:yc - A hacker news client. (iTunes link) (source code)

40. NowPlayingAllows you to check local theater listings, and check rotten tomato ratings.  (source code)

41. PacklogBackpack journal client. (iTunes link) (source code)

42. PlainNoteSimple Open Source Notepad. (iTunes link) (source code)

43. PocketFlixFind movies, and manage your Netflix information. (source code)

44. Prey - Anti-theft tracker featuring on-demand and push notification activation. (source code)

45. Puff Puff - Beautiful underwater 2D game utilizing Cocos2D and Openfeint featuring unique physics based gameplay. (iTunes link) (source code)

46. Pw Safe - Password manager that works across multiple platforms. (iTunes link) (source code)

47. Quickbright - Simple app for setting the brightness for your iPhone quickly and easily. (iTunes link) (source code)

48. reMailE-mail client featuring ultra-fast search. Removed from app store, but source made available. (source code)

49. RobotFindsKittenPort of a very silly “classic” ASCII game. (iTunes link) (source code)

50. RPI Shuttle Tracker - App for tracking bus positions around the RPI campus. (iTunes link) (source code)

51. Sci-15 HPCalcCalculator app based on classic scientific HP-Calculator. (source code)

52. Sage Math - Interface to the sage computer algebra system. (itunes link) (source code)

53. Scratch - A viewer allowing you to run applications made with MIT’s scratch project. (source code)

54. Sign Plus - App for turning iPad into a digital sign. (itunes link) (source code)

55. Skeleton Key - Puzzle game created using Cocos2D. (itunes link) (itunes link iPad)  (source code) (source code iPad)

56. SpaceBubbleSpace game featuring core graphics, and accelerometer usage. (itunes link) (source code)

57. SparkleShare - Client for the DropBox like SparkleShare file storage service. (itunes link) (source code)

58. Star3MapAugmented reality star and planet charting application. (itunes link) (source code)

59. Stockfish ChessA chess game featuring extremely effective AI . (itunes link) (source code)

60. Sudoku Resolv  - Sudoku solving app using computer vision. (itunes link) (source code)

61. Task CoachPersonal to-do list and task manager. (itunes link) (source code)

62. Teh Internets - A silly side scrolling game that makes fun of many internet memes created using Cocos2D. (itunes link) (source code)

63. Tilt MonsteriPhone game written with the Corona SDK that reached top 25 in the app store. (source code)

64. Travel Advice UK - App featuring worldwide travel advice provided by the UK Governemnt. (itunes link) (source code)

65. Tux RideriPhone port of the extremely popular, and beautiful 3D Tux Racer game. (source code)

66. Tweedie - A twitter iPad client created using HTML5 and Phonegap (Cordova). (itunes link) (source code)

67. TweejumpPlatform jumping game inspired by Icy Tower. Utilizes Cocos2D. (itunes link) (source code)

68. TweeteeEnhanced version of the Natsulion Twitter Client. (itunes link) (source code)

69. TweeteroBasic twitter client with image uploading. (itunes link) (source code)

70. Vim - The classic highly configurable UNIX text editor ported to iOS. (itunes link) (source code)

71. ViralFireUnique game where you are a dodging blood cell. (source code)

72. WikihowA reader app for the popular how to wiki site. (itunes link) (source code)

73. Wikipedia – Official Wikipedia app for iOS devices. (itunes link) (source code)

74. Wolfenstein 3D Classic Platinum – If you haven’t heard of Wolfenstein post below so we can say a prayer for you. (itunes link) (source code)

75. WordPressClient for managing WordPress blogs. Also has an iPad version. (itunes link) (source code)

76. XpilotSimple massively multiplayer arcade shooter from the early days of the internet. (itunes link) (source code)

77. YourRightsPocket database containing a summary of your legal rights. (itunes link) (source code)

78. ZBarA barcode reader open source iphone app. (itunes link) (source code)

Check them out if you are working on something similar or think they might have a feature you could use there’s no reason to re-invent the wheel.  Always make sure you understand the licenses as many of these open source iPhone apps are GPL and require that you open source your app.

Please Share And Comment

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Know Any Other Open Source iPhone Apps?

If you’ve found or have released an app that you would like added to the open source iphone apps list then please mention it in the comments.

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102 Responses to Open Source iPhone Apps List – Real App Store Code Examples!

  1. Hi! 36 Open Source iPhone App: you forgot tweetee :-) http://tweetee.corradoignoti.it

  2. Hi! 36 Open Source iPhone App: you forgot tweetee :-) http://tweetee.corradoignoti.it

  3. Hi! 36 Open Source iPhone App: you forgot tweetee :-) http://tweetee.corradoignoti.it

  4. Sorry I misspelled the name of my own site :-( http://www.corradoignoti.it/tweetee/ this is the right one.

    Thank you

  5. Sorry I misspelled the name of my own site :-( http://www.corradoignoti.it/tweetee/ this is the right one.

    Thank you

  6. Sorry I misspelled the name of my own site :-( http://www.corradoignoti.it/tweetee/ this is the right one.

    Thank you

  7. Pingback: Resources: Open Source at Under The Bridge

  8. Pingback: iFUN.de/iPhone :: Alles zum iPhone − Vier Links für iPhone-Entwickler: Neue Auflösung, Analyse-Tools, Open Source-Applikationen und Tutorials

  9. Hi Thank you!
    this is great help for developing.

  10. Hi Thank you!
    this is great help for developing.

  11. Hi Thank you!
    this is great help for developing.

  12. Next time have a image preview of all the apps.
    It will be much appreciated by everyone. Thanks for the list.

  13. Next time have a image preview of all the apps.
    It will be much appreciated by everyone. Thanks for the list.

  14. Next time have a image preview of all the apps.
    It will be much appreciated by everyone. Thanks for the list.

  15. Good idea, thanks.

  16. Good idea, thanks.

  17. Good idea, thanks.

  18. Pingback: Open Source Apps « xcoding.de

  19. When you click on #4 there is no download :

  20. When you click on #4 there is no download :

  21. When you click on #4 there is no download :\

  22. I’ll double check that ASAP, thank you for the comment.

  23. I’ll double check that ASAP, thank you for the comment.

  24. I’ll double check that ASAP, thank you for the comment.

  25. It is fine just use the svn checkout as shown on the page.

  26. It is fine just use the svn checkout as shown on the page.

  27. It is fine just use the svn checkout as shown on the page.

  28. Pingback: Applicazioni Open Source per iPhone - iPhone Italia – Il blog italiano sull'Apple iPhone 4, iPhone 3GS e 3G

  29. I think it’s excellent that you compiled this list! If you would like, you may add my open source game to your list.
    Source code: http://www.Vellios.com/iphone/spacebubble.html
    The game is on the App Store for free. It’s called SpaceBubble.

  30. I think it’s excellent that you compiled this list! If you would like, you may add my open source game to your list.
    Source code: http://www.Vellios.com/iphone/spacebubble.html
    The game is on the App Store for free. It’s called SpaceBubble.

  31. I think it’s excellent that you compiled this list! If you would like, you may add my open source game to your list.
    Source code: http://www.Vellios.com/iphone/spacebubble.html
    The game is on the App Store for free. It’s called SpaceBubble.

  32. Pingback: Open Source iPhone App Store Apps Listing Updated | iPhone iOS 4 iPad SDK Development Tutorials, Programming Tips, News

  33. Pingback: 37 Open Source iPhone Apps « iPhone Open Source - Nick Vellios

  34. Pingback: How To Add Turn Based Multiplayer Into Your iPhone Games Easily With Openfeint | iPhone iOS 4 iPad SDK Development Tutorials, Programming Tips, News

  35. Thanks for this list. Strip Password Manager and Data Vault is also open source/peer reviewed. Maybe you can add it! Here's the website: http://getstrip.com/

  36. Hi Alena, how can I download the source code of Strip Password Manager? I followed the link to the site, but I can not find the link to download the sources?
    Thanks.

  37. The “Ecological Footprint” iPhone application has gone free on the App Store and also Open Source now.
    It demonstrate the use of the Core Data to access multiple linked tables and show how to query information on a SQLite DB. It shows an example on share the result of Footprint calculation via Mail or Facebook account making use of the framework fbconnect-iphone available freely on internet.
    The application doesn’t intend to make a complete calculation of the footprint, which involves a lot of variables and complex parameters, but allows you to understand the importance of our daily consumptions on the Earth planet.
    Hope you enjoy with it.
    Comments, suggestions, App Store downloads or contributions are welcome :)
    - Links -
    AppStore:
    http://itunes.apple.com/it/app/impronta-ecologica/id334459678?mt=8

    Sources:
    http://www.mitapp.com/opensource/EcoFootprint.zip

    Website:
    http://www.mitapp.com/en/applications2/ecological-footprint/

  38. Hi Paolo,

    Thanks for making this open source. However, the link to the zip file does not seem to work.

  39. I’ve fixed the zip filename on the server. Now the link works! I’m sorry for the inconvenience.

  40. Hi ReallyCurious. I’ve fixed the problem, now the link works.

  41. Hi Paolo. The open source encryption engine for Strip Password Manager can be found at http://github.com/sjlombardo/sqlcipher

  42. To put it more precisely: The Strip Password and Data Vault app is not open-sourced. Only the used encryption library is? Did I understand this correctly?

  43. There’s some other GPL games around, like Battle For Wesnoth.

    http://wesnoth.repositoryhosting.com/trac/wesnoth_wesnoth/

    and XPilot.

    http://7b5labs.com/xpilotiphone

    and Tux Rider.

    http://barlow-server.com/tuxriderworldchallenge/

    Grab them before somebody gets their self-righteous Open Source knickers in a twist…

  44. Thanks Alex, I will check them out.

  45. Pingback: Tópicos de Marketing Digital UC » una nueva forma de pensar

  46. Pingback: iOS development highlights: September 2010 at Ole Begemann: iOS Development

  47. Pingback: Game With 225k+ Copies Sold Goes Open Source | iPhone, iOS 4, iPad SDK Development Tutorial and Programming Tips

  48. Open Source iPhone Apps List – 43 App Store Apps So Far! | iPhone, iOS 4 http://t.co/MZWqkkk via @maniacdev

  49. What’s Wolfenstein? :->

  50. Haha.. I hope you’re joking.. but Wolfenstein 3D was the first first person shooter to hit it big.

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