Attention!!! THIS IS NOT SOME KIND OF GAME ENHANCER OR FAKE NETWORK BOOSTER!!
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Test your ping to PUBG (Mobile) gameserver without entering the game!
Perfect for those who game everywhere.
You can check the current status of PUBG (Mobile) gameservers here.

How this works?
This app sends icmp request to all Mobile servers that PUBG use.
This is completely from the client-side without any additional API so the result is pretty much accurate.