A free app for Android, by Viettel Media Inc.

Viettel Post helps businesses send an email, track the status of an email, and get tracking info quickly and easily.

You can also send images, PDFs, and other files. You can track the delivery status and track the delivery process, and get the tracking number.

You can easily pay the shipping charges using PayPal, credit card, or bank transfer. You can also track the delivery costs and get estimates on how much it will cost to deliver to different addresses.

Viettel Post also provides customers with a lot of information about the products they want to purchase. You can check out the prices and the customer reviews.