TuneIn claims to be the worlds biggest sport radio. There are free option and paid options for TuneIn. The free trial is obviously for the Premium service which will stream games from all major sport leagues including the NFL, MLB, NBA and NHL. The free service will still offer thousands of other stations through the app. The free trial is 7 days if you opt in for it to pass to a monthly contract or 30 days if you choose for an annual contract.