DymaxIO vs O&O Defrag
| DymaxIO | O&O Defrag | |
|---|---|---|
| Free plan | No | No |
| Free trial | Yes | No |
| Paid from | $5.75/mo | — |
| Open source | No | No |
| Platforms | Windows | Windows |
| Free plan | No | No |
| Drive types | both | both |
| Scheduled optimization | Yes | Yes |
| Automatic optimization | Yes | Yes |
| Paid from | — | 49.95 one-time |
| Boot-time optimization | — | Yes |
| Filesystem support | — | multi-filesystem |
Both are listed in Best Disk Defragmentation Software. On Samsung Mobile US Press, DymaxIO scores higher on our published basis.