| Price from | $29/mo | $74/mo |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Linux | Yes | — |
| API | Yes | — |
| Self-hosted | Yes | — |
| Plans published | 3 | 4 |
| Spec score · Sales Funnel Builders | 8.7 (#4) | 7.0 (#27) |
| Analytics | Funnel analytics include step-by-step conversion, drop-off, and 17 built-in payment and form events queried with DuckDB. | Spiffy provides checkout, revenue, subscription, payment-plan, customer, and affiliate reporting. |
| Company | The About page describes Autonnel as built by a small team but does not state a company name, headquarters, or founding date. | The service is provided by Paperplane, LLC, an Arizona limited liability company doing business as Spiffy, located in Tempe, Arizona. |
| Upsells | Autonnel supports one-click post-purchase offers charged to the saved card without a second checkout. | Checkout flows can include order bumps, add-ons, one-click offers, downsells, and multi-step offer paths. |