Prometheus Mobile STO vs Arrk

Prometheus STO Mobile is a Prometheus Group Platform that is an easy-to-use interface and framework to address shut-down, turn-around, and outages of heavy assets in various industries. Prometheus Group is the leading enterprise asset management software solution provider, covering your plant maintenance, operations, and safety needs from planning to execution and beyond.

Arrk is the native iPhone companion for self-hosted Radarr and Sonarr. Browse your movie and series library, find new titles, choose releases, and follow downloads without opening a browser. Connect directly over local Wi-Fi or a VPN such as Tailscale. Arrk has no account or cloud relay; your server addresses and API keys stay in the iPhone keychain. Discover Radarr and Sonarr automatically on your local network, or connect with your existing VPN setup. Browse a fast poster grid and search, sort, or filter to see what is available, missing, or monitored. Add movies and series with your default quality profile and root folder, or use manual search to compare releases by quality, size, and seeders before sending one to your download client. Keep Radarr and Sonarr queues together, watch live progress, remove unwanted items, and receive completion notifications. Server health and free disk space are close at hand. Searchable history helps you review grabs, imports, and failures; you can also force a stalled import or delete an episode file from its details. Make Arrk yours with an accent color, light or dark mode, haptics, and animations. Available in English, Italian, Spanish, German, and French. Arrk requires a Radarr and/or Sonarr installation reachable from your iPhone over local Wi-Fi or VPN.