Hello all, I recently came across 2 different sites/apps that are used to crypto mine via your CPU/GPU and i was wondering if anyone else has had any experiences with them. I am looking to hear about both good and bad experiences from people.

One is called "cheap mining.com" complete with exchange features and no deposits required for a withdrawal, they claim to be the best way for simple at home BTC mining. Strictly BTC. Seems a bit too good to be true, apparently I've earned 3.75USD already using a 1.6 ghz quad core with ZERO l3 cache.... seems high to me. Also has a min with drawl of 0.034 btc

The other is called EO finance miner. Functions the same way as the other one but it has the option of an APP that gives you a boost. This one mines XMR, allows you to run the same account on multiple devices at the same time and once again no deposit needed. This one seems more realistic in terms of earnings. A 5 year old android tablet has earned 0.03 USD in the form of Monero.

So what can you lovely people tell me about these sites/apps/software or whatever you choose to call it?