| Price from | — | $39/mo |
| Free plan | — | — |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | — | Yes |
| Plans published | 0 | 3 |
| Spec score · Conversion Rate Optimisation Tools | 7.4 (#11) | 7.6 (#10) |
| Spec score · A/B Testing Tools | 7.4 (#37) | 7.6 (#32) |
| Intended users | The site describes Apertio as serving engineering, marketing, and security teams. | The pricing page describes Starter for individuals and side projects, Growth for growing teams and businesses, and Scale for large teams and agencies. |
| Product | Apertio is an open-source experimentation SDK for running A/B tests without injecting JavaScript into a page. | Otter is A/B testing software that measures revenue per variant alongside conversion rate and average order value. |
| Security | The site says Apertio does not inject third-party scripts or touch the DOM, and that its bounded variant data keeps a strict nonce-based CSP intact. | Otter says data is encrypted in transit using TLS/HTTPS and at rest, and account passwords are hashed using bcrypt. |