| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| Plans published | 3 | 7 |
| Spec score · Personal Email Services | 8.8 (#12) | 8.2 (#49) |
| Attachments | A message can include up to 50 files, with a maximum total message size of 25MB. | The app supports online preview of documents, images, audio and video, compressed files, and EML attachments. |
| Free plan | Yes | Yes |
| Platform access | web_mobile_desktop | web_mobile_desktop |
| Support | AT&T provides self-service setup, troubleshooting, security, password, and account recovery help, plus support videos. | The listing directs users to submit suggestions and feedback through Settings > Feedback. |