| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| Plans published | 5 | 3 |
| Spec score · Personal Email Services | 8.3 (#41) | 8.8 (#12) |
| Attachment limit | 25 | 25 |
| Attachments | Users can attach up to 15 files with a combined size up to 25 MB. | A message can include up to 50 files, with a maximum total message size of 25MB. |
| Free plan | Yes | Yes |
| Mailbox storage | 25 | 5120 |
| Mobile apps | Netinfo says ABV has native mobile applications for iOS and Android. | AT&T lists Apple Mail, Outlook Mobile, and Yahoo Mail for supported iOS devices, and Gmail, Outlook Mobile, and Yahoo Mail for supported Android devices. |
| Platform access | web_and_mobile | web_mobile_desktop |
| Support | ABV directs customers who need help recovering account access to its technical support team. | AT&T provides self-service setup, troubleshooting, security, password, and account recovery help, plus support videos. |
