Forums in the Mobile App Niche

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

2. 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/  

3. 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  

4. Tech Support Guy
Free computer help.
http://forums.techguy.org/  

5. Ubuntu Forums
A help and support forum for Ubuntu Linux.
https://ubuntuforums.org/  

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

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

8. 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  

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

10. 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/  

11. 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/  

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

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

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

15. The Niche Laboratory Forum
A new forum for discussing niche sites and making money online.
https://www.nichelaboratory.com/Forum/  

16. 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/  

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

18. Best Destination Wedding
The #1 Destination Wedding Planning resource. Get help from other brides, read photographer & resort reviews, DIY invitations, OOT bags & lots more!
http://www.bestdestinationwedding.com/f/  

19. Squeezebox : Community : Forums
Forum has 97,459 topics.
https://forums.slimdevices.com/  

20. Affiliate Marketing Forum | AffiliateFix
Affiliate Marketing Forum | AffiliateFix. The number one Affiliate and CPA marketing forum online. Affiliate Networks and more.
https://www.affiliatefix.com/  

21. Fantasy Football - Footballguys Forums
Forum has 11,992,505 posts.
https://forums.footballguys.com/forum/  

22. Supercell Community Forums
Supercell's official Community Forums for all fans of Clash of Clans and Hay Day! Join today!
http://forum.supercell.net/forum.php  

23. The Student Room
Forum has 46,029 posts.
http://www.thestudentroom.co.uk/forum.php  

24. forums.woodnet.net
https://forums.woodnet.net/  

25. www.biggerpockets.com
The BiggerPockets Forums are the most active & comprehensive place for investors to find questions & answers or real estate discussions. Join the conversation today!
https://www.biggerpockets.com/forums  

26. Fan Clubs
Forum has 11,155 members.
https://www.talkwhateveronline.com/  

27. Steve Hoffman Music Forums
Music, audio, tubes, hi-fi, stereo, vinyl, CDs, hi-res, SACDs, video, and the mastering of Steve Hoffman!
http://forums.stevehoffman.tv/  

28. MobileRead Forums
MobileRead - the resource for mobile geeks seeking information and advice for keeping their gadgets happy.
http://www.mobileread.com/forums/  

29. Happier Abroad Forum Community
Our Message
https://www.happierabroad.com/forum/index.php  

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

31. Home Theater Forum
Home Theater Forum is a site dedicated to the love of all things cinema and film, home theater equipment and all varieties of home entertainment.
http://www.hometheaterforum.com/  

32. Canon Digital Photography Foru
Digital photography forums for amateurs and professionals alike with photo gallery and photo sharing. Canon, Nikon, Leica, Sony, Panasonic, Olympus, Fuji and other brands. DSLR, mobile, mirrorless,...
http://photography-on-the.net/forum/  

33. The PokéCommunity Forums
Forum has 21,944 members.
http://www.pokecommunity.com/  

34. Whirlpool.net.au
https://forums.whirlpool.net.au/  

35. Anime-Forums.com
Forum has 135,526 topics.
www.anime-forums.com/forum.php  

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

37. AfterDawn Discussion Forums
Massive tech discussion forums, focusing on digital video, consoles, PCs and software problems.
http://forums.afterdawn.com/  

38. www.dreamincode.net
https://www.dreamincode.net/forums/  

39. debunkingskeptics.com
Forum has 30,833 posts.
https://www.debunkingskeptics.com/forum/index.php  

40. World of Warplanes North American official forum
Forum has 386,252 posts.
http://forum.worldofwarplanes.com/  

41. Digital Grin Photography Forum
The best forum to share your photos and celebrate photography!
http://www.dgrin.com/  

42. TheSite.org
Community discussion from TheSite.org. Providing advice and moderated discussion for young people aged 16 - 25 years old, providing a safe place to ask difficult questions or just chat with friends
http://vbulletin.thesite.org/  

43. Against The Grain - Wet Shaving Forum
Wet shaving forum. Advice on shaving techniques, razor blades, shaving soaps, creams, brushes, and personal grooming. Great shaving forums and community.
https://www.atgshaving.com/  

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

45. Accessify Forum: Web Accessibility Discussion Forums
Discussion about making websites accessible to people with disabilities.
http://www.accessifyforum.com/  

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

47. www.seoforum.com
SEO Forum is the place to talk SEO for everyone. Come and learn or share your experience with search engines, marketing and everything related.
https://www.seoforum.com/  

48. www.daniweb.com
Programming Forum - Our Programming forum category encompasses application development, web development, programming theory, and everything in between.
https://www.daniweb.com/programming/4  

49. RedFlagDeals.com
RedFlagDeals.com is Canada's largest bargain-hunting website updated daily with deals, freebies, coupons, and more. Join our message board to discuss with fellow Canadians.
http://forums.redflagdeals.com/  

50. Overclockers UK Forums
Overclockers UK Forum powered by Xenforo
http://forums.overclockers.co.uk/