The main difference between the two is the max blocksize limit which is limited to 1 mb in bitcoin whereas the block size is increased from 1 mb to 8 mb in bitcoin cash which accounts for faster transaction processing times and lower fees. A btc transaction costs about 1 and at its peak reached 25. A btc transaction costs about 1 and at its peak reached 25.
Bitcoin cash has lower fees about 0 2 per transaction so performing transactions in bch is more profitable than using btc. For bitcoin the size of each block is limited to roughly 1mb but there have been examples of blocks successfully mined that are larger than this due to the benefits of the aforementioned segwit upgrade. Arguably the main technical difference between bitcoin and bitcoin cash is the maximum block size allowed by each network.
While the bitcoin cash block size increase does solve the transaction throughput issue for the short and medium term it s entirely possible that block size would need to be increased again further reinforcing network centralization. Bitcoin cash and bitcoin are fundamentally similar with the only difference consisting of block size. You can use these apps to make secure payments to compatible merchants.
If you want to use your bitcoin or bitcoin cash you will first need to download an app that will allow you to use it. Prices vary every day but the current cost of one bitcoin is 9 364 10 usd and one bitcoin cash is 379 41 usd. One bitcoin is equal to 24 66 in bitcoin cash.
Bitcoin cash is thus able to process transactions more quickly than the bitcoin network meaning that wait times are shorter and transaction processing fees tend to be lower.