Bitcoin Forum

There is no legit way to do that unless you gamble and instead of doubling and tripling your coins , you could lose it all. Since you have some BTCs to start with then you should invest in ICOs of upcoming Altcoins or buy an account and enroll into a signature campaign. It's better and safer.

You shouldn't trust those sites saying they can double bitcoin in 3-4 hours because they are mostly ponzi. There is very high chance you will lose your money. You can double it with trading, but don't expect to double it over night.

Double money in 3-4 hours can't be legit. I see some people talking about high profits trading, but it's not easy and certain. There is some risk involved and most traders don't make this high profit in so short time intervail.

Furthermore, I don't suggest you to invest on any site which offers high BTC returns so fast and easily.

There's no easy money. This kind of websites are just stealing your money, please don't be a fool.

If you want to double your money, try trading but you have to study first or you will lose all your money.

Exactly. And you could try to learn to make significant topic titles too .. ;)

 Do you think that there is a quick profit in real life? in real life you have to work hard and permanently to get the money.

  Encrypted currency world is no different from the reality in something,you must have the skills to get a return.

There is no legit way to double your money. Those who say that they double money in 3-4 hours are just scammers. They might try you to get engaged in a ponzi or other scam and then take away your money. Keep away from such sites.

You can get profits from trading but that requires passions, skills and luck.
Remember : Rome was not built in a day !

You are expecting to double the amount of your bitcoin? I think only gambling casinos can be double your BTC in few hours but its too risky.
If you really want to double it and less risk better to try trading it takes long time to make profit but it is less risk than invest it for scam site or gamble it with high risk..

Don't trust doubler sites as it will only scam your money in the end. But they say, you can survive from them if you get the profits early together your capital before it shutdown. The problem is you don't know when it will happen. My friend share his experience, he joins only in new doubler sites and then after 25 days of running he will pull out all his money. That's the way he make profit.

Try https://hitbtc.com (https://hitbtc.com)
Number 1 trading platform, you can double, triple your money if you have enough intellects...  ;) ;) ;)
 ;D ;D ;D

Never trust those fake doubling sites, no any program or service can just double or tripple your bitcoin within 3-4 hour or even in a week. Don't get lured on such promises, if you are new to bitcoin start learning crypto trading (both bitcoin and altcoin) and build up nice skill trying with small amount than you can go big when you have gained enough experience and skill.

Double bitcoin on 3-4 hour huh...The truth is they only rolling the money.When there are no any people wan to invest anymore,they will not be able to pay you.Even worse,thia type of business is only scamming people money.

lol ;D so true!