iSubtitle 3 4+

Soft subtitled movies

Bitfield AB

    • 4.6 • 64 Ratings
    • $19.99



Inject subtitle tracks, chapter markers and metadata into your movies and TV-shows. The perfect companion app for your iTunes library and all your Apple devices, like the iPhone, iPad, iPod, Apple TV and Mac.

iSubtitle takes full advantage of Apple's soft subtitle technology. The subtitle tracks are resolution independent and rendered in real-time as you watch the movie. Subtitles are always displayed at the best quality your device can perform. There are support for multiple languages in the same movie file and you can even switch language on the fly as you watch. The export and metadata tagging is fully automated so you don't need to tweak a lot of parameters to get your movie into iTunes with beautiful tagging and artwork.

Main Features

- Add soft, non-destructive subtitle tracks, that won't change or alter the original movie.
- Subtitles can be turned on/off using the interface of the device or application.
- Complete support for multiple languages in the same file.
- Perfect integration with your iTunes library or the TV app on macOS Catalina/Big Sur.
- Supports all Apple devices like the iPod, iPhone, iPad, Apple TV and Mac.
- Supports encoding in AVC, aka H.264 and HEVC, aka H.265.
- Supports pass through for H.264 and H.265 video tracks and AC3 and AAC audio tracks, ie no encoding needed = fast!
- Supports all major subtitle file formats like SubRip (.srt), SubViewer 1 & 2 (.sub), SubStation Alpha (.ssa/.ass), Spruce (.stl), iTunes Timed Text (.itt) and WebVTT (.vtt).
- Matroska subtitles, like ssa/ass and srt, are automatically converted to soft subtitle tracks on import.
- Sync individual subtitle tracks in real-time using the time offset stepper.
- Automatic and manual metadata tagging.
- Create chapter markers automatically or manually.
- Batch re-encode movies within the application to support your target device or application.
- Smart export will only re-encode your movie if really needed for it to play on your device.
- Save inline directly to the source file if it's already in a compatible mp4/m4v format.
- Watch subtitled movies in fullscreen without leaving the application.
- Hardware decoded playback on the GPU for H.264 and H.265 video tracks in any container.
- Works like a charm with macOS Catalina and Big Sur.

• Please use the Feedback feature in the app if you are having issues and I will get back to you!

NOTE! iSubtitle cannot add subtitles to movies or tv-shows purchased or rented in the iTunes store due to DRM protection.
NOTE! iSubtitle is not a subtitle file authoring application.

What’s New

Version 3.4.6

- Playback with hardware decoding on the GPU for H.264 and H.265 (HEVC) video tracks.
- Playback with hardware decoding also works for containers like .MKV (Matroska)
- Playback with hardware decoding saves battery life and CPU cycles.
- Easily plays 4K video when hardware decoding is available.

Ratings and Reviews

4.6 out of 5
64 Ratings

64 Ratings

DavidPabian ,


Because I have hearing-impared friends who like obscure films, I do a lot of subtitle downloading and always-necessary repair in both timing and, too often, translation or just plain misunderstood words. I’ve used several subtitle apps, including “professional” ones, but always come back to iSubtitle. Version 3 is sleek and elegant, has excellent export capabilities and is simple and user-friendly. The only caveat is that instead of the earlier version’s manual Search for subtitles the only choice is Submarine, and too many times that app hasn’t found titles that a manual hunt would uncover.

But back to the pluses - when I had a minor problem with this version, the developer found it, fixed it, updated and uploaded the app within a day. That’s what clinched the final star.

Developer Response ,

Thank yo so much David for your nice review! So glad to hear that you enjoy my app that I put so much time and energy into. Makes me motivated to continue updating it and keeping it fresh. Thx 🙏

jvcp ,

Great app, minor issue downloading some subtitles

I've been using this app for a few years, and roadmovie before that, I love it and gets the job done very quickly.
It has an issue when trying to download subtitles using the search function. If the filename contains ñ or accented characters the download fails with error message: "No subtitle file found in the zip archive".
I'd love to see that fixed, and hardware encoding support for the M1 Pro and M1 Max processors.

Ahmed Ayman. ,

Missing an old feature

The app is wonderful but in the old 32-bit version there was an "Arabic (Windows)" subititle option that is no longer available. Kindly add it to your app in the next update so I can give the app a compelete 5 stars rating

Developer Response ,

Thx :-) iSubtitle is just using the built-in text encodings available in macOS. Not sure why Arabic disappeared from your system.

App Privacy

The developer, Bitfield AB, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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