Preview for Developers

Preview for Developers
323 reviews
By installing you agree to the Terms of Use and other terms

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File weight

< 1 MB

Last updated



Works with

  • Windows Phone 8.1
  • Windows Phone 8

App requires

  • data services
  • web browser component
  • HD720P (720x1280)
  • WVGA (480x800)
  • WXGA (768x1280)
What's this?

Supported languages (2)

English (United States) 中文(简体)
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Now registered Windows Phone developers can receive pre-release OS updates on their dev phone, directly from Microsoft! You can use this app to opt-in your phone to receive early Windows Phone updates before they are generally available, enabling you to run and test your app on real hardware running the latest OS before your customers. 
•         You must meet one of the following three requirements: (a) have an active Windows Phone Dev Center account; (b) have an active App Studio account; OR (c) be running a registered developer device (‘dev unlocked’ phone)
•         Updates will only include the Microsoft update, and not additional OEM drivers/firmware
•         To ensure the best experience, your device must be running the latest OS release (currently 8.0.10322.71) or greater to receive early updates via this program
•         You will be required to accept additional terms & conditions within the app prior to opt-in
•         You CANNOT REVERT to a prior OS version once you have taken an update via this program
Key features:
•         Access to latest pre-release Windows Phone updates
•         Ability to opt-out of pre-releases and only receive production Windows Phone updates
show details


  • by Louis 26/07/2014
    Im sorry to be bringing this app down. I haven't had any flaws, but i want to develop apps but you have to be 18! Im still young but i really want to experiment around with building apps and trying out windows 8.1 :(
  • by User 26/07/2014
    I would recommend this app but needs to update it and needs updates.
  • by Paul 25/07/2014
    Why did I not try this out earlier. Works perfectly on Lumia 920
  • by George 24/07/2014
    8.1 is sooooo amazing!! You have to download! This actually gives you 8.1 early!! It's easy to do and you won't regret it!! My 1020 is awesome!! Ps I was a die hard apple fan and this is brilliant!!
  • by مستخدم 24/07/2014
    مو زابط وبحكيلي للاسف لا يمكنك الانخراط في المعاينة للبرنامج المطو اذا كنت لا توافق على هذة الشروط !!!!!!! 😞
  • by Akhil 23/07/2014
    Loved it..and windows 8.1
  • by facebook 23/07/2014
    Suck 😒
  • by Mujammil 21/07/2014
    You don't need to pay to be developer, u just need to make a random app on app studio and generate it and something should pop up saying windows 8 or windows 8.1 click 8.1. And then when its finished log into ur Microsoft account on the preview for developers and tick the box and enable it. Now you can do it. Just takes 3 updates 😊😊😊😃😞😃
  • by Mathew 21/07/2014
    Very good beta, however the new version of "what's new" in people no longer loads pictures or videos or even allows for comments is shocking. It now needs the facebook app to work which isn't as good as it was. Facebook apps should be an extension not a requirement
  • by User 21/07/2014
    Kevi rite updete karvanu. ?