| Price from | — | $39/mo |
| Free plan | — | — |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | Yes |
| Plans published | 1 | 3 |
| Spec score · Conversion Rate Optimisation Tools | 7.4 (#12) | 7.6 (#10) |
| Product | Eppo is now Datadog Experiments, an experimentation and feature-flagging platform. | Otter is A/B testing software that measures revenue per variant alongside conversion rate and average order value. |
| Security | Eppo states that customer data is encrypted in transit and at rest, with TLS, HSTS, and AES-256 encryption. | Otter says data is encrypted in transit using TLS/HTTPS and at rest, and account passwords are hashed using bcrypt. |
| Support | Support is included at no additional charge through Slack or other standard channels during regular business hours. | Otter offers email support, a site and dashboard live-chat widget, and a priority-support plan tier. |
