1.Wikipedia: Developed by Rudy Huyn, this online encyclopedia app is beautifully designed, fast and simple to use. Find information on any topic on your windows phone with this app. It’s available on windows phone store.
2. Fantasia Painter free: Best photo editing app you can ever get without paying a single penny. Give professional touch to your photos, make collage, clone up your friends, swap their faces, adjust color with artistic brushes and over 100+ effects like Lomography, Gradient map, Blur, Ridge, Gentle Painter, Grunge and many more with this fully unlocked free app. Get this app from windows phone store.
3. WhatsApp: Famous messenger app for your windows phone. Send text, share audios and videos with your friend for free. It’s free for first year. Available on windows phone store.
4. Zomato: If you love to hang out with your friends in restaurant and bars, then this is a very handy app for you. With Zomato app, find nearest restaurants around you, and get details like address, cost, menus, customer review and every other information you want to know. You can download this from windows phone store.
5. Bookviser: Perfect ebook reader for your windows phone. Get numbers of free books from online libraries like Feebooks, Smashwords, Project Gutenberg, AllRomance or any library with OPDS support. Beside this you can also upload/download your own books to your phone via skykpe or Bookviser cloud. Download it from here.