The MKV player for iPhone, such as VLC, AVPlayer, nPlayer, MCPlayer, etc, allows you to play MKV on iPhone without converting. But you have to bear in mind most of them neither support multiple audio track nor add soft subtitles to MKV, let along the annoying ads support and large space occupation on your iPhone. To get rid of all the shortages of MKV player for iPhone, here is a traditional but more reliable way - to decode and reencode MKV into iPhone supported formats like MP4 with a MKV video converter and then sync MKV to iPhone for playing later with iTunes.
How to Play HD MKV on iPhone with High Quality
If hunting a good MKV converter for iPhone is time-wasting and annoying, you can turn to MacX Video Converter Pro. With a straightforward UI, it opens up a convenient way to complete the MKV transcoding task. With 370+ video/audio codecs, you can convert MKV, MTS, M2TS, AVCHD, MOD, AVI, H265, etc and make MKV playable on iPhone, iPad, Android, TV, PSP in a way more flexible. File size will be greatly reduced after the MKV to MP4 conversion, so that you can put MKV on iPhone without worrying about the large space occupation. This MKV converter for iPhone is well received for its easiness, fast speed and high quality, thanks to high-quality engine, hardware acceleration tech, multi-core CPU and hyper-threading technology. The MKV to iPhone conversion process is pretty simple, just follow the steps and then put MKV to iPhone for later playback.
MacX Video Converter Pro is the best video converter for Mac and Windows that works well with Mac High Sierra or lower version. Its windows version is fully compatible with Windows 10. Just feel free to download it. Here we take convert MKV to iPhone on Mac as an example.
Step 1: Free download MKV converter on Mac and open it. Click +Video button to load MKV file. It also supports adding multiple MKV videos at a time.
Step 2: To play MKV on iPhone, you need to choose an output format that iPhone accepts such as MP4. Just click MP4 video (MPEG4 or H264) as the output format when the output profile window appears. Or you can directly choose iPhone model as per you needs from the Apple profiles. Its latest version enables you to directly convert MKV to iPhone X, iPhone 8 (Plus).
Warm Prompt: For iPhone users worrying about space woe, you are advised to compress MKV file size beforehand by reducing the bitrate and resolution. Too much parameter lowering will leads to great quality loss. So we highly suggest you to lower the bitrate 20% smaller.
Step 3: Set the output folder to save the MKV format and click RUN button to start MKV to iPhone MP4 conversion.
Step 4: Open iTunes, click the converted MKV file, and transfer MKV to iPhone. After the transferring, you can play MKV on iPhone without any format issue.
Note: There are constantly iTunes sync errors such as iTunes erases iPhone data, iTunes won't sync, etc. You can turn to iTunes alternative such as the in-demand MacX MediaTrans to complete the task and play MKV on iPhone just in one step. What is amazing is the iPhone manager works as both a video converter and transfer, allowing you to convert MKV to MP4 format and transfer converted MKV to iPhone in one step, saving you a lot of time. To know detailed steps, you can go to the guide: how to transfer video to iPhone >>
What is MKV: MKV is an open-source video file format that is widely used for storing movies and TV shows, mostly for its ability to hold multiple audio and video tracks, subtitles, chapters etc in a single file. Image quality in MKV is much higher than many other formats like WMV or AVI.