There is no method to clean app data. You can clean temporary files in settings, storage check, details. Cleaning temporary files does just that, it cleans, it does not remove all. You could do a soft reset. Hold down volume down and power button until the phone vibrates, release.
Nokia Lumia 930 Hands-On: Bright Display, Powerful Imaging Apps
Meet the ultrabudget Nokia Lumia (pictures) - CNET
Microsoft Lumia previously the Nokia Lumia Series is a discontinued line of mobile devices that was originally designed and marketed by Nokia and later by Microsoft Mobile. Introduced in November , the line was the result of a long-term partnership between Nokia and Microsoft —as such, Lumia smartphones run on Microsoft software, the Windows Phone operating system; and later the newer Windows 10 Mobile. The Lumia name is derived from the partitive plural form of the Finnish word lumi , meaning "snow". On 3 September , Microsoft announced its purchase of Nokia's mobile device business, with the deal closing on 25 April As a result, the Lumia line's maintenance was transferred to Microsoft Mobile. As part of the transition, Microsoft continued to use the Nokia brand on Lumia devices until October , when it began to officially phase out the Nokia name in its promotion and production of smartphones in favor of Microsoft branding. Sales decreased sharply after the introduction of Windows 10 in and Microsoft briefly stopped selling Lumia devices from the Microsoft Store at the end of  —by which time sales were estimated to have dropped below one million units  —although availability was restored at the beginning of
Nokia Windows. The number of apps available crossed the , mark a while ago and, while that doesn't quite compare to Android and iOS, Microsoft says that most of the top 50 apps are already available for WP8. Apps written specifically for Windows Phone 8 won't work on the older versions but all of the older apps will be compatible with the new WP8. At least not initially, many apps eventually do get MB support.
First off, you simply cannot deny that the Nokia Lumia is an amusement powerhouse. Also, for viewing amusement that you have stored on your personal computer or other storage unit, Plex has been redesigned particularly for the Nokia Lumia If you are operating Plex server on your Mac or Windows personal computer, you can check out your videos or audio on your Lumia all in excess of your home.