Ruddarr vs Zouk Sync
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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/
Zouk Sync
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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
Verdict
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
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.
Ruddarr ships an update monthly, Zouk Sync daily. The most recent releases landed on September 23, 2026 and September 24, 2026 respectively.
| Parameter | Ruddarr | Zouk Sync |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (696 ratings) — better | — |
| Positive reviews | 89.9% of reviews | — |
| Number of ratings | 696 — better | — |
| Update frequency | Monthly | Daily — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Requires iOS | 26.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 42 MB | 8 MB |
| Age rating | 12+ | 9+ |
| Developer | Ruddarr | ENES 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
Ruddarr
- Ruddarr+$5.991 Year
Zouk Sync
- Zouk Pro – Monthly$4.991 Month
- Zouk Pro – Yearly$29.991 Year









