Comparison

Ruddarr vs Zouk Sync

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Ruddarr

Control your movie, documentary, and TV series collections remotely. Browse upcoming releases, manage your media library, and receive notifications. Customize the app's appearance and sync settings across devices.

Highlights
  • Manage movies and TV series
  • Browse upcoming releases calendar
  • Receive fine-grained notifications
  • View activity queue and history
  • Switch between multiple instances
  • Customize app appearance
  • Synchronize settings via iCloud
Features
Read full description

Ruddarr is a beautifully designed, open source, privacy-first companion app for Radarr and Sonarr instances. Manage your movies, documentaries and TV series from anywhere, anytime. Features: • Manage movies and TV series • Browse upcoming releases in the calendar • Receive fine-grained notifications • View activity queue tasks and history events • Switch between multiple instances • Customize the app color scheme and appearance • Synchronize settings/instances between devices (iCloud) • Automate actions using Siri Shortcuts • Connect to reverse proxies using custom HTTP headers • Use Spotlight search to quickly jump to media • Fully localized, ready to be translated Notifications require a subscription to Ruddarr+, because sending push notifications to devices requires reliable server infrastructure, which incurs monthly operating expenses for this free, open-source project. Alternatively, *arrs come with many notification integrations that can be self-hosted. Requirements: • Ruddarr does not provide any media and requires a Radarr or Sonarr instance to interact with. - - - Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Zouk Sync

Features
Read full description

Zouk turns every iPhone and Apple Watch in the room into part of one synchronized, music-reactive light show. A phone is already in every hand at the party. Zouk transforms it into part of the show — every screen across the room becomes a synchronized light, pulsing in real time to the music in the air. No wires, no extra hardware, no setup. Just open the app, join the room, and watch the crowd glow together. KEY FEATURES • Real-time beat detection from the microphone • Synchronized light show across multiple devices on the same Wi-Fi • Sub-millisecond clock sync via an NTP-style protocol • Apple Watch app — host or join right from your wrist • 10 immersive effects: Pulse, Spectrum, Strobe, Wave, Fire, Aurora, Rainbow, Breath, Glitch, Solid • Adaptive mood detection that picks the right effect for the energy in the room • Crowd heatmap that grows with every device that joins • Send live reactions across the room — fire, heart, party, applause • Shake to trigger a flash, tilt to send a wave • 6 curated color palettes for the perfect vibe HOW IT WORKS 1. One person hosts a party from iPhone or Apple Watch 2. Friends nearby join with a 4-character party code — no signup, no account 3. Phones detect the beat and pulse together in perfect sync 4. The room becomes one giant, music-reactive light show PRIVACY-FIRST BY DESIGN Audio is analyzed only on your device for beat detection. Nothing is recorded, nothing is uploaded, nothing leaves your phone. There is no account, no tracking across apps, no sale of your data. The party stays in the room. WORKS GREAT FOR • House parties and gatherings • Silent discos • Dance practice and DJ sets • Birthday parties and weddings • Concerts and afterparties • Any room that could use a little glow

Screenshots

Ruddarr4 screens
Zouk Sync3 screens

Verdict

The call

The clearest difference is update cadence: Zouk Sync at daily against Ruddarr's monthly. Zouk Sync also leads on iOS requirement (17.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Ruddarr sells 1 in-app purchase, starting at $5.99 per year and Zouk Sync sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Ruddarr ships an update monthly, Zouk Sync daily. The most recent releases landed on September 23, 2026 and September 24, 2026 respectively.

Scorecard2 real differences · 8 level
Ruddarr versus Zouk Sync: the parameters behind the verdict, then further details
ParameterRuddarrZouk Sync
PriceFreeFree
Rating4.9 (696 ratings) — better
Positive reviews89.9% of reviews
Number of ratings696 — better
Update frequencyMonthlyDaily — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium
DevicesiPhone, iPadiPhone, Apple Watch
Requires iOS26.017.0 — better
Further details — not scored
Size42 MB8 MB
Age rating12+9+
DeveloperRuddarrENES ULUDAG

Bugs and requests

Ruddarr

Reported bugs

2 issues
  • Fails with error when trying to add any service
  • Crashes and freezes all the time

Requested features

3 requests
  • Support one time purchase
  • List view not just posters
  • Latest releases or trending lists that could be pulled from trakt or IMDb

Zouk Sync

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Ruddarr

Subscriptions1
  • Ruddarr+$5.991 Year
2 purchases

Zouk Sync

Subscriptions2
  • Zouk Pro – Monthly$4.991 Month
  • Zouk Pro – Yearly$29.991 Year

Questions

Is Ruddarr free?
Ruddarr is free to download, with in-app purchases available.
Is Zouk Sync free?
Zouk Sync is free to download, with in-app purchases available.
Do Ruddarr or Zouk Sync have ads?
Neither Ruddarr nor Zouk Sync shows ads.
Which is updated more often, Ruddarr or Zouk Sync?
Ruddarr ships an update monthly, and Zouk Sync daily. Most recently, Ruddarr was updated on September 23, 2026 and Zouk Sync on September 24, 2026.

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