Develop your own mining network
In CryptoTab, you can create your own mining network by inviting new users via your personal link. Mining network includes up to 10 levels of referrals, which means you will get income from your friends mining, their friends mining and further on. In addition, the number of referrals on each level is unlimited. By inviting just a few people, you can significantly increase your income.
https://cryptotabbrowser.com/6885080
the difference is crypt o miner does not require you to upgrade to remove your bit coins from the account here is the second miner i use that you must upgrade to remove any coins ..

What is 99 Mining?99 Mining is an industry leading Bitcoin mining pool.
All of the mining power is backed up by physical miners. Mining with the latest algorithms allows to make as much Bitcoin as possible. We aim to provide you with the easiest possible way to make money without having to do any of the hard stuff. With data centers around the globe, we aim to keep bills down and mining power high, meaning you can make more in a shorter amount of time than what it would take to mine from your home for instance. Our data centers are located in Europe, USA and China with dedicated Up-Links and 99% uptime!
https://99mining.cloud/index.php?reffid=r6Ksp56Z
you can earn with both and i do.. but i like the crypto browser just because you can transfer your coins in to a outside wallet with out paying for an upgrade first. in fact in crypto browser there is no upgrades. you have to build a network of like minded miners it relies on your referrals to make you more crypt o not bitcoin