Here is my review for your product:

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Pros:

• Microsoft app always in high quality
• Very useful for businessman
• Can share with people easily

Cons:

• Nothing for this product

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My comment:
Very cool idea! It is also in cloud, very security.

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For this product, I like to mark it as
8.2/10

Good work on hunting, thank for bring us a good product

(Please noted that it is my personal opinion only)