Verdict
The short version
- Seafile is the only one of the pair with official whole-machine minimums in our dataset, and its recommended RAM (2 GB) maps to a smaller tier than Nextcloud’s estimated recommended 4 GB.
- Both are AGPL-3.0 at the server core; Seafile’s desktop client and web UI carry their own licences (GPLv2 and Apache-2.0).
- Their catalogued commercial alternatives differ: Nextcloud is listed against Google Workspace (Drive), Seafile against Dropbox.
- Nextcloud has the larger GitHub audience in our dataset (~37k vs ~15k stars; Seafile’s count is its front-page repository).
Neither verdict nor table scores the apps against each other — the right pick depends on the job, the licence you can accept, and how much of the spec is published rather than estimated. If you plan to run either alongside other apps, add it to a multi-app VPS estimate →