The principle of operation of the resource is that Unijoin sends coins of all users to a single account, mixes them, and then distributes coins to users. You get the same amount (minus commission) of already cleared bitcoins, including several from different parts of the blockchain. Which makes it almost impossible to analyze it. The mixer also sends you a letter of guarantee. This letter of guarantee is a confirmation of the obligations of BitMix biz and that the service has generated an address for the user to send. This email is always signed from the main bitcoin account Unijoin (publicly available at BitMix biz). The service also uses a unique code of 12 characters, after that, this user will never receive exactly his own coins back. Save this code it will be needed for the affiliate program. BitMix biz includes an affiliate program and pays users when they bring other users to the platform. You will receive a fee for every transaction you refer to. BitMix biz’s robust privacy policy is backed by several points: No registration and identity verification required. Transaction history is deleted after 72 hours. The randomization function makes the analysis of the protocol more difficult. Tor browser support. Bitcoin Mixer : It has a positive reputation among the Bitcoin community Coin Mixer : Provides user-controlled time delays 1. Bitcoin Mixer - It has a positive reputation among the Bitcoin communityAnd last but not least, there is a coin mixer with a number of cryptocurrencies to tumbler named Bitcoin Mixer. At the moment, there are three currencies and Ethereum is going to be represented in future. This mixer offers a very simple user-interface, as well as the opportunity to have control over all steps of the mixing process. A user can select a delay not just by hours, but by the minute which is very useful. The tumbler gives the opportunity to use a calculator to understand the amount of money a user finally receives. The service fee is from 1 % to 5 % with fees for extra addresses (0.00045529 BTC, 0.01072904 LTC, and 0.00273174 BCH). Having funds from different resources helps the crypto mixer to keep user’s personal information undiscovered. This last mixer does not offer its users a Letter of Guarantee.Being one of the earliest crypto coin tumblers, Bitcoin Mixer continues to be a easy-to-use and functional crypto coin mixer. There is a possibility to have two accounts, with and without registration. The difference is that the one without registration is less controllable by a user.The mixing process can be performed and the transaction fee is charged randomly from 1% to 3% which makes the transaction more anonymous. Also, if a user deposits more than 10 BTC in a week, the mixing service reduces the fee by half. With a time-delay feature the transaction can be delayed up to 24 hours. A Bitcoin holder should worry security leak as there is a 2-factor authentication when a sender becomes a holder of a PGP key with password. However, this mixing platform does not have a Letter of Guarantee which makes it challenging to address this tumbler in case of scams. Pros: No-logs policiExcellent customer support 2. Coin Mixer - Provides user-controlled time delays Coin Mixer bitcoin mixer is one of the few that allows large-volume transactions. The minimum size for a mixing operation is 0.001 BTC, any amount below this level is considered a donation and is not sent back to the client, there is no maximum transfer limit. The minimum commission is 0.5% with an additional fee of 0.0005 BTC for each incoming transaction. During the transaction, you will receive a letter of guarantee, as in all previously mentioned mixers.Coin Mixer runs on the Darknet and is one of the most popular Bitcoin toggle switches. This dark service uses new technology, it doesn’t just clean up your coins, you get brand new coins that have never been on the dark web. The cleaning process can take no more than 4 hours. To carry out cleaning on Helix in the basic version of Grams, you need to register, in the versions of Helix Light and Helix Market this is not necessary. If you still decide to use the Grams version, you will have to pay an entrance fee of 0.01 BTC. Helix has an additional feature (Auto-Helix) that allows you to specify which addresses your coins will be mixed with when they are credited to your account. Helix also enforces a “no log” policy, all logs are deleted automatically after 7 days or by the user immediately after completion of the output. Helix has a third party server not connected to Grams. A number of Bitcoin client programs that he uses are located on a completely separate server from Helix and Grams. Even if Grams is attacked or compromised, Helix will not be affected. Pros: It has a positive reputation among the Bitcoin community24/7 customer support