Forums in the Mobile Apps Niche

1. GolfWRX
Golf news, equipment, reviews, classifieds and discussion
http://www.golfwrx.com/forums/  

2. PetGroomer.com GroomerTALK and
Pet grooming forum for dog and cat groomers and mobile.
http://www.petgroomerforums.com/chat/forum.php  

3. BattleOn Forums!
https://forums2.battleon.com/f/  

4. Webmasters, SEO, Internet Marketing & Digital Marketing Forum
WebmasterSun is the most popular webmaster and internet marketing forums. You will find more useful information and resource here!
https://www.webmastersun.com/forums/  

5. PPCGeeks
PPCGeeks is a site for PPC owners with discussion, reviews, news, links, downloads, and much much more. We cover Windows Mobile, Android, Windows Phone 7, Blackberry, iOS, and tablets.
http://forum.ppcgeeks.com/  

6. KVR: Forum Index
KVR Audio Forum - Forum - VST Plug-in, AU, AAX, Audio Software Discussion
https://www.kvraudio.com/forum/  

7. MacRumors Forums
Apple news and rumor discussion
http://forums.macrumors.com/  

8. Overclockers UK Forums
Just missed out on a spot in the top 25.
http://forums.overclockers.co.uk/  

9. forums.crackberry.com
The #1 Community Forum for BlackBerry Users & Abusers! BlackBerry Help, Discussion, Rumors and More...
https://forums.crackberry.com/  

10. Wacom
Forum has 6,592 posts.
http://forum.wacom.eu/  

11. SikhNet
SikhNet makes a person's spiritual journey relevant in the context of the modern world and the way people live now. For over 24 years SikhNet has served the millions and is the largest Sikh...
https://www.sikhnet.com/discussion/  

12. R2IClubForums
Return To India
https://www.r2iclubforums.com/forums/  

13. Fantasy Football - Footballguys Forums
Many people go football crazy over sports forums like this one.
https://forums.footballguys.com/forum/  

14. Wilders Security Forums
Community Based Discussions about Online Privacy, Security and Data Protection
http://www.wilderssecurity.com/  

15. VideoHelp
This forum will help you with all your video and audio questions!
https://forum.videohelp.com/  

16. iPhone, iPad, iPod Forums at i
Discuss and get help with iPhone, iPad, iPod touch, iOS, and iCloud
https://forums.imore.com/  

17. BleepingComputer.com
A free community and discussion forum for answering Computer Help, Security, and Technical Support questions.
http://www.bleepingcomputer.com/forums/  

18. Google Community
The #1 Unofficial Google Forum to discuss and chat on the use of Google products and services, such as Gmail, AdWords, AdSense, Analytics and YouTube.
http://www.gforums.net/  

19. Tech Support Guy
Just missed the top 10.
http://forums.techguy.org/  

20. VBForums
Visual Basic Discussions plus .NET, C#, game programming, and more (http://www.VBForums.com)
https://www.vbforums.com/forum.php  

21. The Popjustice Forum
It's all about the music except when it's not.
https://forum.popjustice.com/  

22. Ubuntu Forums
A help and support forum for Ubuntu Linux.
http://ubuntuforums.org/  

23. CodeGuru Forums
Hard hitting articles, dicussions, resources, and more all focusing for real developers in the real world.
https://forums.codeguru.com/index.php  

24. DonationCoder.com
DonationCoder.com Forum - Index
https://www.donationcoder.com/forum/  

25. UAV Coach Community Forum
https://community.uavcoach.com/  

26. Java Forums at the Big Moose S
https://www.coderanch.com/forums/  

27. Zend Forums
Forum has 14,245 topics.
http://forums.zend.com/  

28. Apolyton Civilization Site
Forum Description
https://apolyton.net/forum.php  

29. Bitcoin Forum
Bitcoin Forum is a community of developers, academics, and entrepreneurs dedicated to promoting and improving Bitcoin.
https://bitco.in/forum/  

30. My Local Services
Welcome to our 100% free and friendly Small Business Forum. Gain advice, help and join in the business discussion and banter.
https://www.mylocalservices.co.uk/forum/  

31. Viewing list of forums
The SoundDomain forum is the place to go for all your car audio, stereo, installation, and mobile video questions.
http://forum.sounddomain.com/ubbthreads.php  

32. Digital Spy
Digital Spy Forum and Community, a place to discuss the latest TV, Movie and entertainment news and trends.
http://forums.digitalspy.co.uk/  

33. GameSpot
Join the discussion around video game news, reviews, previews, and walkthroughs for the PS4, Xbox One, PS3, Xbox 360, Wii, PC, 3DS, and DS.
https://www.gamespot.com/forums/  

34. TubeBuddy Forums
Forum has 145,976 posts.
https://community.tubebuddy.com/  

35. RESET Forums (homeservershow.com)
Forum has 78,275 posts.
https://homeservershow.com/forums/  

36. Cell Phone Forums
Cell Phone Forums is a community for all types of cell phone users. Active forum discussion about all types of cell phone service providers and manufacturers provides an outlet for users to get...
https://cellphoneforums.net/forum.php  

37. Beyond3D Forum
The world's best online 3D graphics discussion!
http://forum.beyond3d.com/  

38. Webmasters, SEO, Internet Marketing & Digital Marketing Forum
The #1 internet marketing forum for marketers, SEO specialists, webmasters, web hosting, affiliates and a marketplace to buy and sell services.
http://www.webmastersun.com/  

39. 3D Robotics Drone Forum
3D Robotics Solo Drone Information, Forum, Help and Community
https://3drpilots.com/  

40. Sports Card
SportsCardForum is your source for everything related to sports cards for collectors and non-collectors alike!
https://www.sportscardforum.com/forum.php  

41. Neowin
News, Reviews & Betas which includes large community peer support
https://www.neowin.net/forum/  

42. Cathe Friedrich Fitness Forums
Cathe Friedrich forums about fitness, health, nutrition and workouts.
https://cathe.com/forum/  

43. Elite Trader
Elite Trader is the #1 site for traders of stocks, options, currencies, index futures, and cryptocurrencies.
http://elitetrader.com/vb/  

44. www.skimble.com
Skimble forums.
https://www.skimble.com/workout-trainer/forums/  

45. www.elitetrader.com
Elite Trader is the #1 site for traders of stocks, options, currencies, index futures, and cryptocurrencies.
https://www.elitetrader.com/et/  

46. SysOpt Forums
This is a discussion forum for all aspects of computer systems optimization and customization
https://www.sysopt.com/forum.php  

47. Body Building Forum - The Iron Den
The Iron Den bodybuilding forum literally has everything that you need to know if you hope to effectively build muscle.
https://www.theironden.com/forum/  

48. The Niche Laboratory Forum
Forum has 250 posts.
https://www.nichelaboratory.com/Forum/  

49. Keeptouch Community Portal
Keeptouch Community Portal is an online community based in Singapore, offering a place for exchange of ideas and information in a wide range of topics in the form of forum discussions and Internet...
http://forums.keeptouch.net/  

50. [H]ard|Forum
HardOCP Community Forum for PC Hardware Enthusiasts
http://hardforum.com/