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This is the best Graphing Calculator for Windows Phone and it is FREE now in ALL countries! It could be bought feature by feature! It supports: supports All screen resolution, includes 720P & 1080P includes a powerful and easy...

This is the ONLY Offline Dicionary for Windows Phone which fully compatible with library data format of MDict and it is FREE now in most countries(except USA, China & Hong Kong SAR)! It supports: Fully compatible with .mdx &am...