IObit Smart Defrag vs O&O Defrag
| IObit Smart Defrag | O&O Defrag | |
|---|---|---|
| Free plan | Yes | No |
| Paid from | $1.67/mo | |
| Platforms | Windows | Windows |
| Free plan | Yes | No |
| Drive types | both | both |
| Scheduled optimization | Yes | Yes |
| Automatic optimization | Yes | Yes |
| Boot-time optimization | Yes | Yes |
| Paid from | 49.95 one-time | |
| Filesystem support | multi-filesystem |
Listed together in Best Disk Defragmentation Software