Why sign up for a Premium / Pro 33Mail account?
| Lite | Premium | Pro | Enterprise | |
| Cost | FREE | $1 per month | $5 per month | $50 per month |
| Unlimited aliases |  | | | |
| Alias management interface | | | | |
| Monthly bandwith limit | 10MB | 50MB | 500MB | 5GB |
| Anonymous Reply Daily Limit |  | 20 | 100 | 1000 |
| Custom domains | | 1 | 5 | unlimited |
| Additional Usernames | | 1 | 5 | 25 |
| No Ads | | | | |
| Custom settings | | | | |
| Future premium features | | | | |
| Sign Me Up | Sign Me Up | Sign Me Up | Sign Me Up |