Peloton is a brand of bicycle and online training platform. They also produce a treadmill, and the training platform includes cycling, running/walking, strength, and flexibility training programs.
Zwift is an app that works with “smart trainers” or bicycle trainers that can connect over Bluetooth to a computer or phone to monitor output and adjust resistance. This is good because you can pick gear to match your needs and budget.
Because Zwift allows you to use your own hardware, the costs can vary dramatically. However, most users have fairly typical setups.
At the time of publishing, the base Peloton is $1,495. The Peloton+ is $2,495. The monthly pricing for access to the classes and content is $39. This includes users for everyone in your household.
If you own a road bike and get a smart trainer, the Tacx Flow 2 is a great option for $370. If you do not own a bike, budget about $500-1,200 to buy one for use on a trainer.