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The best video converter apps for iPhone in 2024 depend on the job: The Video Converter is the simplest broad-format option, Video Converter and Compressor offers the deepest controls, Media Converter is useful for audio extraction, and PlayerXtreme may be better when you only need playback. Several entries are compressors, editors, GIF makers, or file utilities rather than true converters.
This is a historically framed 2024 roundup based on the app descriptions and evidence available for the January 9, 2024 source list. App Store availability, prices, ratings, privacy disclosures, and minimum iOS versions can change, so verify the current listing in your country before installing or paying.
Key takeaways
- The Video Converter is the best simple all-purpose choice in this list, but some conversions use a cloud server and require an internet connection.
- Video Converter and Compressor is the strongest option for users who need control over resolution, frame rate, bitrate, codecs, audio tracks, and subtitles.
- Media Converter is the most natural pick for video-to-audio work, while Video Compressor: Save Space is better for reducing file size than changing formats.
- An MP4 file is not automatically compatible: the video codec, audio codec, profile, frame rate, subtitles, and metadata inside the container also matter.
- PlayerXtreme can solve a playback problem without creating a converted copy, while iMovie can reduce export resolution when compression—not format conversion—is the real requirement.
What are the best video converter apps for iPhone in 2024?
For most people, start with The Video Converter. Choose Video Converter and Compressor for advanced encoding controls, Media Converter for audio extraction, iConv for batch and mixed file conversion, and MP4 Maker when MP4 is the only output you need. The table below separates those recommendations from apps that mainly compress, edit, create GIFs, or play unsupported files.
| App | Best for | Useful advertised capability | Processing or workflow note | Main limitation |
|---|---|---|---|---|
| The Video Converter | Simple all-purpose conversion | Lists formats including MP4, MP3, WEBM, GIF, MOV, WMV, AVI, FLAC, FLV, M4A, MKV, WAV, and MPG | Cloud conversion for some workflows; some popular conversions can run locally | Cloud workflows require internet access and send the applicable file to a server |
| Video Converter and Compressor | Advanced conversion and compression | Advertises resolution, frame-rate, bitrate, codec, audio-track, subtitle-track, rotation, and compression controls | Designed for users who want settings rather than a one-tap export | More settings and in-app purchase options make it less simple |
| Media Converter | Audio extraction and broad media conversion | Video-to-audio and multiple media-format workflows | Useful for extracting MP3 or another audio file from video | The available evidence does not establish every codec or offline path |
| iConv | Batch and general file conversion | Video, audio, image, and PDF conversion according to the roundup | Better suited to mixed file tasks than video-only work | Less focused than a dedicated MP4 converter |
| Video Compressor: Save Space | Shrinking large videos | Compression and resizing | Appropriate before messaging, emailing, or uploading a file | Primarily a compressor, not a broad format-conversion tool |
| MP4 Maker | MP4-only output | Converts video to MP4 | A narrow workflow can be easier for occasional users | Not the choice for many output formats or advanced track handling |
| AniSmall | Conversion plus resizing | Conversion, compression, resizing, and audio extraction | Useful when one app must handle several basic jobs | Codec-level controls and independent test results are not established here |
| Media Converter PDF GIF Maker | GIF and MP3 tasks | Video-to-GIF, photo-to-GIF, and video-to-MP3 functions | Best treated as a mixed-media utility | Not a clear general-purpose converter |
| VideoShow | Editing and exporting | Video editing and export | Useful when trimming, merging, or otherwise editing is also required | It is primarily an editor rather than a dedicated format converter |
| PlayerXtreme | Playing unsupported files | Media-player alternative included in the original roundup | May avoid conversion if the only goal is watching the file | Does not create a converted file for another app or device; current App Store link was not resolved in the available evidence |
| Video Converter & Compressor by WEBDIA | Secondary conversion and compression option | Conversion, compression, resizing, and playback according to the roundup | Potentially useful as an alternative workflow | The source provides no meaningful comparative testing |
| Video Converter – mp4 to mp3 | Simple audio extraction | Video and audio conversion according to the roundup | Consider it for a focused video-to-MP3 task | Current availability and pricing were not verified in the available evidence |
| MP4Plus converter PRO | Paid MP4/MP3 niche workflow | The 2024 source described a premium converter | Could suit users seeking a paid alternative if still available | Historical claims about no ads, pricing, and purchase model need current verification |
| MP4 Converter! | Lightweight MP4-focused conversion | Listed support for MP4, 3GP, AVI, MKV, FLV, MP3, GIF, and other formats | Useful when a small set of common outputs is enough | Feature depth and current availability were not independently tested |
| Video Files Converter MP3 GIF | Mixed video, audio, and GIF conversion | Video-to-audio and GIF-oriented functions according to the roundup | Use only after checking the current listing and paywall | Some features were reported behind a paywall and current availability was unresolved |
The original January 9, 2024 roundup is the source of the 15-app grouping, but the grouping mixes different categories. Calling all 15 equally good “video converters” would mislead readers, so the recommendations above are task-based rather than a claim that every app was tested head-to-head.
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Which iPhone video converter should you choose?
| Your task | Best starting point | Why | Important check |
|---|---|---|---|
| Convert MOV, MKV, AVI, or WEBM to a broadly compatible file | The Video Converter | Broad advertised format coverage and a simple workflow | Check whether the selected conversion is local or cloud-based |
| Choose bitrate, codec, frame rate, or tracks | Video Converter and Compressor | The listing specifically advertises those controls | More controls require more careful settings |
| Make a 4K or 1080p file smaller | Video Compressor: Save Space | Compression and resizing are its central use case | Lower resolution and bitrate reduce quality |
| Extract music, speech, or other audio | Media Converter | Positioned for broad media conversion and video-to-audio work | “Extract” may be lossless only when the app copies a compatible audio stream; MP3 conversion is lossy |
| Convert multiple file types in batches | iConv | Presented as a general file converter with batch conversion | Confirm the current batch limit and supported input paths |
| Produce only MP4 | MP4 Maker | A narrow output goal usually needs fewer decisions | Verify the resulting MP4 uses H.264 video and AAC audio if compatibility matters |
| Create a GIF | Media Converter PDF GIF Maker | Its listed functions include video-to-GIF conversion | GIF is best for short, low-resolution clips and has no normal audio track |
| Watch an MKV or AVI without sharing it elsewhere | PlayerXtreme | A player may solve compatibility without transcoding | Check whether the player supports the specific codec inside the file |
| Edit, trim, or merge before exporting | VideoShow | An editor is more appropriate when the conversion accompanies editing | Export settings may be less detailed than a dedicated transcoder |
What does a video converter actually do?
A video converter can perform several different operations that are often incorrectly treated as the same thing. Understanding the operation helps you choose the right app and avoid unnecessary quality loss.
Container conversion
A container is the wrapper that holds video, audio, subtitles, and metadata. MOV, MP4, MKV, and AVI are containers. Changing a compatible file from one container to another without re-encoding is called remuxing; remuxing can preserve quality, but only when the destination container accepts the streams and metadata.
Codec conversion and transcoding
A codec encodes the actual video or audio stream. H.264, HEVC/H.265, VP9, and AV1 are video codecs; AAC, MP3, M4A, and WAV describe common audio outputs or formats. Transcoding re-encodes the streams, which can improve compatibility but can also reduce quality, remove metadata, or create a larger file.
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Compression reduces file size by changing one or more variables: resolution, video bitrate, frame rate, audio bitrate, or codec. Compression is the correct solution when a video already plays correctly but is too large to message, email, store, or upload.
Audio extraction
Audio extraction creates an audio file from a video. Copying an existing compatible audio stream is different from converting that stream to MP3, AAC, M4A, or WAV. A lossy audio conversion can reduce quality even when the video itself is not changed.
GIF conversion
GIF conversion turns a short video segment into an animated image. GIF is useful for simple looping visuals, but GIF files do not provide a normal video soundtrack and can become very large at high resolution.
Playback
A media player opens a file in its original format instead of creating a new file. If the reader only wants to watch an MKV or AVI, a compatible player can be faster, use less storage, and avoid transcoding.
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How should you choose an iPhone video converter?
Choose an app by its primary job, processing method, output controls, and import/export workflow rather than by the length of its format list.
- Format and codec support: Prefer a documented target such as MP4 with H.264 video and AAC audio for general compatibility. A file extension alone does not prove that the app supports the exact codec, profile, audio track, resolution, or frame rate inside the file.
- Local versus cloud processing: Local conversion keeps the source on the device when the app genuinely supports local processing. Cloud conversion may be faster or less demanding on the phone, but it uploads the original file, consumes network data, and can fail if the connection is interrupted.
- Control: Advanced users should look for resolution, bitrate, frame rate, video codec, audio codec, audio-track selection, subtitle-track selection, rotation, cropping, and batch processing.
- Storage: The iPhone needs room for the original, temporary working data, and converted copy. Keep the original until the output has been inspected.
- Privacy: Treat an App Store privacy label as a developer disclosure, not an independent certification. Apple states that developer-provided privacy information has not been verified by Apple.
- Commercial terms: “Free” can mean free download rather than unlimited free conversion. Check for ads, export limits, subscriptions, trials, and lifetime unlocks in the current App Store storefront.
Which apps offer the most useful conversion controls?
Video Converter and Compressor has the clearest evidence in this dossier for advanced output control. Its listing advertises custom resolution from 4K down to 240p, custom frame rates, codec selection, subtitle and audio-track controls, rotation, flipping, and compression.
Those controls matter because a “smaller file” is not a single setting. Lowering resolution removes detail; lowering bitrate increases compression artifacts; lowering frame rate reduces motion information; changing HEVC to H.264 can improve compatibility while increasing file size at comparable quality. A converter that exposes these settings lets the reader make the trade-off deliberately.
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For a general compatibility preset, select an MP4 container with H.264 video and AAC audio when those options are available. For messaging, a 720p or 540p export with a moderate bitrate is a practical starting point. For email or a strict upload limit, 480p or 540p may be more realistic. Preserve the original resolution and use a high bitrate when quality matters more than size.
Does The Video Converter upload your iPhone videos?
The Video Converter’s App Store listing says that some conversions are performed on a secure cloud server and require an internet connection, while some popular conversions can run locally. The distinction is conversion-specific, so do not assume that every workflow is offline or that every file remains on the iPhone.
Cloud processing can upload the complete source, consume mobile data, create an additional download, and stop or fail when the connection is weak or iOS suspends the app. Cloud processing may be unsuitable for confidential footage. The listing also describes file-deletion behavior, but that is the developer’s statement rather than an independent guarantee.
Before starting a cloud conversion, use Wi-Fi, keep the app open for a large job, connect the iPhone to power, and check the app’s current privacy disclosure. Do not upload sensitive video merely because the app advertises broad format support.
What formats can iPhone converter apps handle?
Common input containers include MOV, MP4, MKV, AVI, WEBM, M4V, MPEG, MPG, FLV, 3GP, TS, MTS, and M2TS. Common output targets include MP4, MOV, WEBM, AVI, MKV, GIF, MP3, M4A, AAC, and WAV.
The Video Converter’s listing advertises output examples including MP4, MP3, WEBM, GIF, MOV, WMV, AVI, FLAC, FLV, M4A, MKV, WAV, and MPG. Video Converter and Compressor’s listing advertises input examples including MP4, MKV, AVI, 3GP, MOV, MTS, M2TS, TS, MPEG, MPG, WMV, M4V, VOB, FLV, F4V, and WEBM, along with multiple audio formats and codecs.
“Lists support for MKV” does not mean that every MKV file will work. MKV is a container that can hold different video codecs, audio tracks, subtitles, frame rates, and profiles. The same caution applies to MP4, AVI, and other extensions. Test the exact file, not just the filename ending.
Can an iPhone convert video without a third-party app?
An iPhone can handle some size and editing tasks without a dedicated converter, but the built-in tools are not a general-purpose replacement for format transcoding.
- Photos: Trim and make ordinary edits, but do not treat Photos as a full MOV, MKV, AVI, or codec converter.
- iMovie: Export at a different resolution to reduce size when editing or a lower-resolution copy is all that is needed. Apple’s current iMovie export guidance is for iOS 26, so the current interface should not be presented as the exact 2024 interface.
- Files: Move, rename, organize, and share files, but Files does not replace a transcoder.
- Media player: Open the file directly when the problem is playback rather than sharing or conversion.
If a video already plays and only needs trimming, use Photos or an editor. If a video only needs to become smaller, use an export or compression workflow. Use a converter when another app or device rejects the original format or codec.
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- Install a converter from the App Store and review its current permissions, privacy disclosure, ads, and purchase terms.
- Import the source from Photos, Files, iCloud Drive, or another available location. Files is often preferable when the source is a downloaded MKV, AVI, or other document rather than a camera clip.
- Choose the output container and codec. For broad compatibility, use MP4 with H.264 video and AAC audio when the app offers those controls.
- Choose resolution, bitrate, and frame rate. Use a lower resolution or bitrate for messaging and limited upload sizes; preserve the original settings when quality is the priority.
- Select the required audio track and subtitle track if the app exposes those options.
- Start the conversion. Keep the app open for demanding local jobs and use Wi-Fi for cloud workflows.
- Save the result to Photos or Files, then open the output before deleting the original.
- Verify playback, audio synchronization, resolution, file size, rotation, subtitles, and the intended audio track.
Why does an iPhone conversion fail?
A failed conversion usually reflects an unsupported stream, insufficient storage, a network problem, an app limitation, or an iOS background-suspension issue—not simply the file extension.
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- Try playback first. Open the original in a compatible media player. If the file plays but another app rejects it, create an H.264/AAC MP4.
- Use Files. Copy the source into the Files app and import it from there rather than importing directly from Photos.
- Check the network. Cloud workflows require a reliable connection. Use Wi-Fi and avoid switching away from the app during a large upload.
- Try a short clip. A short test reveals whether duration, file size, storage, or a particular stream causes the failure.
- Reduce complexity. Try a lower resolution or frame rate and disable extra audio or subtitle tracks if the app allows it.
- Check storage. Keep enough free space for the source, temporary data, and output.
- Inspect the destination. A converted file can be valid but still rejected by a messaging, social, or editing app with stricter requirements.
What problems can conversion cause?
Transcoding can create blocking, banding, blurred detail, audio-sync errors, altered color or HDR behavior, lost metadata, missing subtitles, missing alternate audio tracks, or a larger-than-expected file. A conversion to ordinary H.264 MP4 may also discard or alter HDR, Dolby Vision, spatial-video, cinematic, or camera-specific metadata unless the app explicitly documents preservation and the workflow has been tested.
Large 4K and long videos are especially demanding. Insufficient storage, heat, battery drain, thermal throttling, lengthy processing, cloud upload limits, and app termination can all affect the result. Keep the original, connect to power, and verify the finished copy before deleting anything.
How should these 15 apps be interpreted?
The list is useful as a menu of solutions, not as proof that 15 directly competing converters were tested equally. The source roundup includes dedicated converters, compressors, general file utilities, an editor, a GIF maker, an audio-extraction tool, and a media player. The source does not provide common test files, iPhone models, iOS versions, output settings, conversion times, or quality measurements.
For that reason, this article does not claim that one app is fastest, preserves quality best, supports every file, or is more private than another without evidence. The safest wording for format coverage is “the app lists support for” rather than “the app converts every file of this type.”
What should you verify before paying?
App Store prices, ratings, minimum iOS versions, availability, and privacy disclosures are volatile and storefront-specific. For example, the US listing for The Video Converter currently indicates iOS 15.6 or later and displays multiple Premium Pass and Lifetime Pass purchase options; the displayed prices should be checked again before publication or purchase. The US listing for Video Converter and Compressor also shows multiple purchase structures, including weekly, monthly, annual, and lifetime-style options. Those listings do not establish what the apps cost in every country or what the same apps offered in 2024.
| Check | Why it matters |
|---|---|
| Country storefront | An app or price available in the US App Store may not be available in another country. |
| Minimum iOS version | An older iPhone or iPad may not be able to install the current release. |
| Free download versus free use | A free button can coexist with ads, export limits, trials, subscriptions, or lifetime purchases. |
| Local or cloud path | Privacy, speed, mobile-data use, and reliability differ substantially. |
| Codec and track controls | Format names alone do not prove that the output will play in the intended destination. |
| Privacy label | Apple identifies privacy information as developer-provided and not independently verified by Apple. |
Best choices by user type
- Occasional user converting a camera clip: The Video Converter, after checking whether the chosen path uses cloud processing.
- Power user preparing a file for a specific device: Video Converter and Compressor.
- User extracting speech or music: Media Converter.
- User reducing storage or upload size: Video Compressor: Save Space.
- User handling videos plus images, PDFs, and audio: iConv.
- User who always wants MP4: MP4 Maker.
- User needing conversion, resizing, compression, and audio extraction together: AniSmall.
- User making a GIF: Media Converter PDF GIF Maker.
- User editing before export: VideoShow.
- User who only wants to watch an unsupported file: PlayerXtreme or another compatible media player, if available in the user’s storefront.
Frequently Asked Questions
What is the best video converter app for iPhone in 2024?
The Video Converter is the best general starting point in this 2024-focused list because it advertises broad format support and a simple workflow. Video Converter and Compressor is a better choice when bitrate, resolution, codecs, frame rate, audio tracks, or subtitles matter.
Can iPhone video converter apps convert MKV to MP4?
Several apps in the roundup list MKV input and MP4 output, including The Video Converter and Video Converter and Compressor. MKV is only a container, however, so success depends on the exact video codec, audio codec, subtitle tracks, profile, and frame rate inside the file.
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Do iPhone video converter apps work offline?
Some iPhone video converter apps support local processing, while others use cloud conversion for particular workflows. The Video Converter’s listing describes both cloud conversion requiring internet access and local conversion for some popular conversions, so users must check the selected path rather than assume that the entire app is offline.
What is the difference between compressing and converting a video on iPhone?
Converting changes the container or codec so another app or device can accept the file, while compressing reduces file size by changing resolution, bitrate, frame rate, audio quality, or codec. A video can be compressed without changing formats, and a format conversion can produce a file that is no smaller—or even larger.
Do I need a converter to watch an unsupported video on iPhone?
No. A compatible media player may play the original MKV, AVI, or other file directly, making conversion unnecessary when playback is the only goal. Convert the file when another app, device, or upload service requires a particular format or codec.
The Bottom Line
Bottom line: Choose the app for the actual task. Use The Video Converter for a straightforward general conversion, Video Converter and Compressor for detailed encoding control, Media Converter for audio extraction, iConv for mixed or batch file work, Video Compressor: Save Space for smaller files, and a media player when conversion is unnecessary. Always check the current App Store listing, confirm whether processing is local or cloud-based, and test the converted copy before deleting the original.
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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.

