What makes an "official" app vs an "unofficial" one? Sounds like you are peddling snake oil.
If the cost to develop exceeds the revenue generated, there is little point to releasing an app for a business. Right now, developing for the Windows App market is based on sheer faith as the volume of sales is low compared to either established platform.
Android activations exceed one million a day. iOS exceeds half a million a day (don't have accurate numbers beyond that). If a platform isn't activating more than that it is losing market share compared to these platforms.
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