Stark Vpn is now available for gratis browsing for mtn sim card. it's very easy just follow the step below
How to setup stark vpn mtn gratis browsing
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Open stark vpn app
Under select tweak, choose custom.
Select Header Line Type - MultiLine
Proxy Port - 8080
Server should remain in AUTO SERVER.
Finally, hit the CONNECT button.
Stark VPN for mtn cheat should connect now, all you need do is minimize the app and enjoy free 50mb daily data.