Maximize COIN Rewards with eXtension Devices
The newest addition to the SentinelX family, the SentinelX NFC is a card that uses Near-field Communication technology and helps us verify your location is authentic.
12x Rewards, or 10% Boost
Earn 12x rewards on a Basic COIN Plan, and a 10% boost on any COIN Premium Plan! The SentinelX NFC requires no battery, and simply needs to be scanned by your phone for a temporary rewards boost.
Better Plans, Better Features
The SentinelX NFC can be scanned for a 4 hour boost on our COIN Basic Plan. The better your plan, the longer your boost! Try COIN Pro if you're looking for something to boost you through a full-night's sleep and then some! (12 Hours!)*
Slim, Waterproof, and Sleek Design
The SentinelX NFC is a convenient credit card shape, so you can keep it close by in a wallet or laptop case.
The best thing is that you can give a card to scan someone else and share one card to one another phone and he will be earning 10% of all your geomines!
I Bought a card to boost my premium account already so I am earning an additional 10% of geomines but it is still worth if you are wanna use CoinApp every day and you are an activity person, it pays. I paid 15$ (for US shipping only 10$) for shipping and the card was free, yes you can buy it technically for free on their site.
If you want to try it by yourself
If you want to support me you can check out other sites I used to earn some extra crypto
StepN activation code - 56799315
Free move to earn Coin App
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