Avatar: Fire and Ash hitting Disney+ earlier than expected is the kind of news that makes streaming aggregators useful. People want one place to ask “where is this thing playing” and “tell me the day it lands.” Eight desktop tools handle that across the major services. Some focus on discovery, some on tracking, some on actually playing the content. We tested each on Windows and macOS.
What to look for in a streaming aggregator app
Catalog coverage comes first. A tracker that misses Apple TV+ or Paramount+ is a tracker that lies to you. Test by searching for a recent prestige release; if it shows the wrong service or none, move on.
Notifications matter for fresh releases. A streaming aggregator that doesn’t alert you when a film moves from “in theaters” to “streaming on Max” is missing the point. Look for browser or email alerts, not just a notifications tab buried in settings.
Cross-device sync is useful for groups. The “I’ll watch it tonight” list you save on desktop should appear on phone or TV. Finally, look at the privacy posture. Some apps build viewing profiles based on what you click; others are pure search.
Quick comparison
| App | Best for | Platforms | Free plan | Starting price | Rating |
|---|---|---|---|---|---|
| JustWatch | The default search | Web, Windows, macOS | Yes | Free | 4.7 |
| Reelgood | Cross-service watchlist | Web, Windows, macOS | Yes | $4.99/mo Premium | 4.4 |
| Trakt | Tracking everything | Web, Windows, macOS | Yes | $30/year VIP | 4.6 |
| Stremio | Streaming playback hub | Windows, macOS, Linux | Yes | Free | 4.5 |
| Plex | Personal + streaming combo | Windows, macOS, Linux | Yes | Lifetime Plex Pass $120 | 4.4 |
| Letterboxd | Cinephile community + tracking | Web, Windows | Yes | $19/year Pro | 4.7 |
| Movie Maniac | Visual streaming discovery | Windows, macOS | Yes | Free | 4.0 |
| Simkl | TV-show tracker with anime support | Web, Windows, macOS | Yes | $29/year Premium | 4.4 |
The apps
1. JustWatch — Best default search
JustWatch is the streaming question’s default answer. Type a title, get a list of every service that carries it (subscription, rent, buy), with pricing on the rent and buy tiers. The desktop app is a wrapper around the web version with system-tray alerts.
Where it falls short: No personal recommendations engine worth the name. The free product is the product; there is no paid tier.
Pricing:
- Free: Yes
- Paid: None
Platforms: Web, with Windows and macOS via PWA.
Download: justwatch.com
Bottom line: Bookmark it, install the PWA, never look anywhere else when answering “where can I watch X.”
2. Reelgood — Best for cross-service watchlists
Reelgood is the answer when JustWatch’s search isn’t enough. The Premium tier hides paid services you don’t subscribe to, so the watchlist only ever shows you content you can already watch.
Where it falls short: Premium tier is required to filter out non-subscribed services. The desktop client is web-based, not native.
Pricing:
- Free: Yes, with ads
- Paid: $4.99/month Premium
Platforms: Web, with PWA support.
Download: reelgood.com
Bottom line: Pick Reelgood Premium if you want the watchlist to silently filter out things you don’t subscribe to.
3. Trakt — Best for tracking everything
Trakt is the long-running scrobble service for TV and film. Connect Plex, Kodi, Emby, or any of the playback apps that integrate with it, and Trakt tracks what you watched and when. The VIP tier removes ads and unlocks higher-end recommendations.
Where it falls short: Discovery features lag behind JustWatch. Setup involves connecting multiple services for full value.
Pricing:
- Free: Yes
- Paid: VIP $30/year
Platforms: Web, plus desktop scrobbler clients for Windows and macOS.
Download: trakt.tv
Bottom line: Required if you care about watch history across multiple players.
4. Stremio — Best for streaming playback
Stremio combines the discovery side of an aggregator with a built-in player. Add-ons hook into legal sources (YouTube channels, public-domain libraries, some platform integrations), and the unified library tracks progress across content sources.
Where it falls short: Quality of content depends entirely on which add-ons you install. The default catalog is thinner than competing services.
Pricing:
- Free: Yes
- Paid: None
Platforms: Windows, macOS, Linux.
Download: stremio.com
Bottom line: Pick Stremio when you want the aggregator and player in the same window.
5. Plex — Best for combining personal media with streaming
Plex started as a media server for your own files and grew into a hybrid platform that also surfaces free ad-supported streaming content from the open Plex catalog. The desktop app handles both sides.
Where it falls short: Ad-supported Plex catalog is hit-or-miss in availability. Plex Pass is expensive if you don’t host your own library.
Pricing:
- Free: Yes
- Paid: Plex Pass $5/month, $40/year, or $120 lifetime
Platforms: Windows, macOS, Linux.
Download: plex.tv
Bottom line: Best when you have your own movie collection plus you want a free streaming layer on top.
6. Letterboxd — Best for cinephile tracking and community
Letterboxd is the cinephile diary. The desktop apps are PWAs that wrap the website; the Pro tier removes ads and unlocks deeper stats. Tom Holland recently used the platform to message followers about The Odyssey, which says something about its reach with both film fans and filmmakers.
Where it falls short: Focused on film, not TV. The aggregator side is thinner than JustWatch.
Pricing:
- Free: Yes
- Paid: Pro $19/year, Patron $49/year
Platforms: Web, with desktop PWA.
Download: letterboxd.com
Bottom line: The right pick if “I want to look up where to watch a film” sits next to “I want to keep a film diary.”
7. Movie Maniac — Best for visual discovery
Movie Maniac focuses on the visual side of discovery. Posters, trailers, mood-based filters, and one-click links to wherever the film is playing. The free tier is generous.
Where it falls short: Smaller catalog focus than JustWatch. UI is the focus; tracking depth is shallower than Trakt or Simkl.
Pricing:
- Free: Yes
- Paid: None
Platforms: Windows, macOS.
Download: moviemaniac.app
Bottom line: Use it for browse-by-vibe nights. Don’t use it as a tracker.
8. Simkl — Best for TV and anime trackers
Simkl is the strongest TV-show tracker with first-class anime support. Pair it with Trakt or Plex via the desktop scrobbler and it logs everything. Premium removes ads and unlocks the AI-driven recommendation engine.
Where it falls short: Film coverage is weaker than its TV and anime side. UI density takes time to learn.
Pricing:
- Free: Yes
- Paid: Premium $29/year
Platforms: Web, with desktop scrobblers for Windows and macOS.
Download: simkl.com
Bottom line: Pick Simkl if your watchlist is mostly TV and anime. Pair with JustWatch for film discovery.
How to pick the right one
- If you just want to know where a film is streaming: JustWatch.
- If you want the watchlist to hide services you don’t have: Reelgood Premium.
- If you want a viewing history across every player: Trakt.
- If you want one app to discover AND play: Stremio.
- If you also host your own media library: Plex.
- If you treat films like books and want a diary: Letterboxd.
- If your watchlist is mostly anime: Simkl.
- If you want to browse by vibe rather than search: Movie Maniac.
Most people end up running JustWatch for “where is this” and one tracker (Trakt, Simkl, or Letterboxd) for the diary side.
FAQ
What is the best free streaming aggregator app? JustWatch. No paid tier, full feature set, accurate catalog data.
How do streaming aggregators know what’s on each service? They license catalog feeds from JustWatch (which owns the dominant data set) or scrape provider APIs and curate manually. JustWatch powers a lot of the catalog data behind apps that rebrand it.
Can I get an alert when a film moves to streaming? Yes, on JustWatch, Reelgood, and Letterboxd Pro. All three send email or push notifications when a title becomes available on a service you watch.
Do any of these include free legal streaming? Stremio and Plex both surface free, legal streaming content from their respective open catalogs. Stremio leans on add-ons; Plex curates its own.
Are any of these apps native desktop apps rather than PWAs? Stremio and Plex are true native desktop apps. JustWatch, Reelgood, Trakt, Letterboxd, Movie Maniac, and Simkl are PWAs or web wrappers.
