We're big fans of cross-device sync here at Android Police. Therefore, we're of the opinion that if you haven't yet heard of joaomgcd's latest app, you're missing out. Join is a bit like Pushbullet, in that it can do Android-to-desktop notifications, desktop SMS, and a cross-device clipboard. But it can do a lot more; for example, you can set your Android wallpaper through Chrome simply by right-clicking on an image of your choice and selecting "Set image as wallpaper."

Join has a fully-featured, ad-supported trial period of 30 days, costing $4.99 if you want to keep using it, although it's currently down to $3.99 for a limited time. This is a one time payment, with no subscription fees like certain other apps have recently introduced. However, we've got 50 codes to give out to readers, which in our books is a pretty great deal.

This contest is now over.

The final results are listed below. If you've won, you will be contacted in the near future. Congratulations!

Everyone else - keep participating and stay tuned to Android Police so that you don't miss our upcoming giveaway announcements. You can follow AP on Twitter, Facebook, Google+, and RSS.

  1. Todd Fagan
  2. sktd!
  3. robertlwalters
  4. Jesco Walker
  5. Emanuele Ricci
  6. Mehul Mittal
  7. Manuel
  8. YisSerL
  9. ethd
  10. Juan S. Camargo Visbal
  11. SciFiFreak
  12. Jason Stanton
  13. burritobob
  14. giancian
  15. jellie1
  16. Dominik
  17. Ariya SD
  18. Paparazzi
  19. Therrm266
  20. Anthony
  21. Rodrigo Tavares
  22. Carlos Rodríguez
  23. Ty
  24. Chris
  25. Matthias VW
  26. Gerardo
  27. Andrew D.
  28. Karol Janik
  29. Cristian
  30. Ashwin
  31. Yorick Dupon
  32. rsgguru_12
  33. Mr_Gee
  34. Nathan
  35. Linu
  36. Abbas Mustafa Bhaiji
  37. aBigMeanie
  38. My1
  39. Pranav Jindal
  40. Paul T
  41. Sebastian Mateu
  42. Hurricane Andrew
  43. Miguel Pacheco
  44. Kojiro Ame Kamex
  45. Verdet Beniamin
  46. Ted Melhuish
  47. Joshu
  48. Whizzer/Chuva Dourada
  49. alexdelifer
  50. stetsonaw

Other things Join can do include the ability to send files across to different devices, make a device ring when you can't find it, or locate said device if you still can't hear it. You can also connect Join up to Tasker, offering a near-impossible number of capabilities. On top of all this, you can link it up to IFTTT and create recipes so the app can communicate with other services.

In short: this app is powerful. There's currently a Chrome extension, a Windows 10 app, and a limited web interface available for use. A Firefox extension is coming, but João says he's having issues sending push messages to the extension, which is a crucial part of the service.

So how do you get in on this great opportunity? Simply comment below with why you want or need this app in your life.  As with the other app giveaways, any comment that has nothing to do with the topic will be disqualified.

The giveaway will run through the weekend, ending on Monday March 21 at 11:59 PM PT. Soon after the competition closes, the winners will be selected and codes sent out.

Good luck!