Myxer is NOT a subscription service and there are no monthly fees, however Msg&Data Rates May Apply. Compatible with most carriers including AT&T, Sprint, Verizon Wireless, Virgin Mobile and TMobile. For items with a price, users on the carriers listed can charge items to their phone bill, or deduct the cost from their prepaid balance. All purchases must be authorized by the account holder. Support:www.myxer.com/help. Text STOP to 69937 to opt out or Text HELP to 69937 for help.