Proto.io vs Zeplin Flows
| Proto.io | Zeplin Flows | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | Yes | No |
| Paid from | $29/mo | $12/mo |
| Open source | No | No |
| Platforms | Android, iOS, Web | Linux, macOS, Web, Windows |
| Free plan | Yes | Yes |
| Design systems | Yes | — |
Both are listed in Best Web Design Software. On Samsung Mobile US Press, Proto.io scores higher on our published basis.