@SecuredNet
There is a software called Youmix.
At a time, few mixers were using it IIRC, and I believe it's still used nowadays by 1 or 2.
Is the spelling correct? A Google search gives different results that are completely far from cryptocurrencies. Even adding the word cryptocurrencies gives the name of a mixer and not a program for creating a mixing service.
Some people say it's harder to track, especially if you 2 different exchange (BTC to XMR and XMR to BTC) where each exchange have different customer and addresses. Of course you can decide the timeframe freely, unless you use 3rd party (such as mixer) which enforce certain time frame.
Outputs like 0.096 BTC are easier to track even if you use BTC to XMR and XMR to BTC, and privacy is tied to other things like managing a full node or using Tor.