Skip both apps and use built in tools.
On iPhone:
- Open Settings > General > iPhone Storage.
- Delete big apps you never use.
- In Photos, sort by “Videos”, remove long clips you do not need.
- Use “Search” in Photos, type “screenshots”, bulk delete.
- Empty “Recently Deleted”.
On Android:
- Use “Files by Google”.
- Run “Clean” suggestions.
- Sort by large files, remove junk.
Do this once a month, set a calendar reminder.