Whisparr vs Radarr vs Sonarr: Same Family, Different Jobs

Whisparr, Radarr and Sonarr share one architecture but manage different libraries. See what carries over, what differs, and how to run them side by side. — a practical, beginner-friendly walkthrough.

Whisparr vs Radarr vs Sonarr: Same Family, Different Jobs — feature illustration

If you found Whisparr, you have probably already met Radarr or Sonarr. All three belong to the *arr family and share the same architecture, which is great news: nearly everything you learned in one applies to the others. The differences come down to what kind of library each app is built to manage.

The shared DNA

All *arr apps follow the same loop: monitor a list, search indexers, hand grabs to a download client, then import, rename and upgrade. They share the concepts of quality profiles, root folders, custom formats-style scoring, an Activity queue and a Wanted list, and they all pair with Prowlarr for centralized indexer management. Visually, the web interfaces are close siblings — if you can navigate one, you can navigate them all.

What each app is for

SonarrRadarrWhisparr
Library typeTV series (episodes, seasons)Movies (single items)Adult media libraries
Data modelSeries → seasons → episodesOne entry per filmVaries by branch (v2 vs v3)
Community sizeVery largeVery largeSmaller, active
DocumentationExtensiveExtensiveLighter — sites like this fill the gap

The practical takeaway: you do not choose between these apps. Each manages a different kind of library, and most people run the ones they need side by side in the same stack.

What transfers from Radarr/Sonarr to Whisparr

  • Deployment knowledge: the Docker patterns are identical — PUID/PGID, a /config volume, one shared /data parent. Our Docker guide will feel familiar.
  • Indexers: if Prowlarr already feeds Radarr and Sonarr, adding Whisparr is one more application entry.
  • Download clients: the same SABnzbd/NZBGet/qBittorrent connection, ideally with a separate category per app.
  • Folder philosophy: hardlink-friendly layouts work the same way; just give Whisparr its own library folder under the shared data parent.

What does not transfer

  • Databases: you cannot import a Radarr or Sonarr database into Whisparr — each app keeps its own.
  • Metadata expectations: matching and naming behave differently because the underlying library types differ; expect to tune Whisparr's naming scheme separately (see best settings).
  • Version assumptions: Whisparr's v2/v3 branch split is its own story — do not assume its versions line up with Radarr's or Sonarr's.

Running all of them together

A tidy multi-app stack gives each app its own config volume and its own download category, but shares one /data mapping and one Prowlarr. Ports typically line up as a sequence (Sonarr 8989, Radarr 7878, Whisparr 6969), which keeps bookmarks memorable and firewall rules simple.

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