For people who have never been incarcerated, the terms "jail" and "prison" may be used interchangeably. The truth is that there are some differences. One thing is certain: you should avoid both.
A fundamental difference exists between jails and prisons. Jails are typically for people who are awaiting trial or who have been convicted of misdemeanors. Prisons are typically for people who are convicted of felonies.
Jails vary in their services.