Alert21 vs Mailchimp
| Alert21 | Mailchimp | |
|---|---|---|
| Free plan | Yes | |
| Paid from | Free | |
| Platforms | Web | Web, iOS, Android |
| Pay-as-you-go | Yes | |
| SMS API | Yes | |
| Delivery status | Yes | |
| Webhooks | Yes | |
| Free plan | Yes | |
| A/B testing | Yes | |
| Landing pages | Yes | |
| Subscriber limit | 500 contacts | |
| Monthly send limit | 5,000 emails/mo | |
| Email automation | Yes | |
| Audience segmentation | Yes | |
| Native integrations | 300 integrations | |
| Custom domain | Yes | |
| Popups & sticky bars | Yes | |
| Built-in email marketing | Yes | |
| WordPress plugin | Yes |
Listed together in Best Transactional SMS Software