For ProjectSend alternatives, the critical question is whether clients receive exactly the files intended for them. Trial with separate client accounts and a disposable dataset.
- Upload files for two clients, including similarly named folders.
- Test access, notification emails, password rules, and expiring links.
- Revoke a file and verify old URLs no longer work.
- Inspect audit logs, download limits, storage quotas, and backup restore.
- Export files and client mappings before any production cutover.
Never infer isolation from an admin view. Sign in as each recipient to test the permission boundary directly.