For Radarr & Sonarr self-hosters

Your drives shouldn't wake up at 3AM for nothing.

Radarr and Sonarr run background tasks constantly — scanning libraries, checking metadata, refreshing RSS feeds. ArrPower batches these into smart windows so your drives sleep when you do.

No account needed. Works in your browser. Docker-ready.

disk_activity_monitorSPINNING
[02:14:33] Radarr: RefreshMonitoredDownloads
[02:14:35] Sonarr: RssSync triggered
[02:14:37] HDD wake-up #47 today
[02:14:41] Radarr: CheckForFinishedDownload
[02:14:44] Sonarr: RefreshSeriesInfo
[02:14:46] Power draw: ~8W idle → 14W active
Unnecessary wake-ups today47
Est. wasted power/month~$1.40

The problem with Radarr & Sonarr defaults

Both tools were designed for always-on servers with spinning disks. If you care about power, they're not optimized for you.

Constant disk wake-ups

Tasks like RSS sync, metadata refresh, and download checks run every few minutes — waking your drives from sleep constantly, even at 3AM when nothing is happening.

Wasted electricity

A spinning HDD draws 6-8W more than a parked one. Multiply that by 24/7 unnecessary activity and you're paying real money for nothing. Over a year, that's $15-30 wasted.

No built-in batching

Radarr and Sonarr let you set intervals, but not time windows. You can't say "run everything between 2-3AM" — tasks scatter randomly throughout the day and night.

What ArrPower does

A dashboard that connects to your Radarr/Sonarr APIs and gives you real control.

Batch Windows

Define time windows (e.g., 2:00–3:00 AM) where all maintenance tasks run together. Outside those windows, tasks are suppressed. Your drives sleep the rest of the day.

Task Trigger Dashboard

See all Radarr and Sonarr scheduled tasks in one place. Manually trigger any task, or let the scheduler handle it. Full visibility into what's running and when.

Wake-up Tracking

Log every time a task would have woken your drive. See before/after comparisons of disk activity. Quantify exactly how much power you're saving.

Local & Private

Everything runs in your browser or as a Docker container on your homeserver. Your API keys never leave your network. No cloud, no accounts, no telemetry.

Set up in 2 minutes

No Docker required for the dashboard. Just open it and paste your API keys.

1

Enter your API keys

Paste your Radarr and Sonarr API keys and server URLs. Everything stays local in your browser.

2

Set your batch window

Choose a 1-4 hour window when maintenance should run. We recommend 2–4 AM when you're asleep and not downloading.

3

Watch your drives sleep

The dashboard shows task activity and drive wake-ups. Most users see 80%+ reduction in unnecessary disk activity within the first day.

Free for self-hosters. Always.

The core tool is free. We know the self-hosting community — you'd build it yourself before paying for something basic. So we made the free tier actually useful.

Pro tier ($5/mo) adds multi-server management, historical analytics, and email/webhook alerts. But you can run a single Radarr + Sonarr setup for free forever.

See full pricing comparison →
Connect 1 Radarr + 1 Sonarr✓ Free
Batch window scheduling✓ Free
Manual task triggers✓ Free
Task activity log (7 days)✓ Free
Multiple server instances⚡ Pro
Historical analytics (90 days)⚡ Pro
Webhook/email alerts⚡ Pro