220+ iOS apps curated and reviewed
The best 4k video converter apps on iPhone average 4.4★ across 220+ titles — we've ranked them by what real users actually keep on their phones. Updated July 2026.
This app converts and compresses video and audio files into numerous formats. It also allows merging video and audio clips, changing resolution, frame rate, and bitrates. Files can be imported from various sources, including cloud services and local devices.
Improve video quality up to 16K, enhancing resolution and detail without cloud processing. Repair blurry footage, convert formats, and utilize advanced AI models for photorealistic results. Offers a free tier with basic upscaling and a subscription for advanced features and editing tools.
This app allows you to quickly compress, resize, or convert videos to various formats, including audio. All processing happens directly on your device, ensuring privacy and speed. Easily save, share, or open your converted files in other applications.
Easily transform video and audio files into a wide range of formats like MP4, MOV, and MP3. Select your input, choose an output, and convert in seconds. Save, share, or view your converted files directly from the app.
Enhance your videos with AI to improve quality and resolution. Convert videos to 720P, 1080P, 2K, and 4K formats using advanced AI models. This tool goes beyond simply resizing, actively improving the visual clarity of your footage.
Enhance and edit videos and photos with AI tools. Upscale to 4K, stabilize footage, reduce noise, and apply creative effects. Refine selfies with retouching and makeup, and automatically generate bilingual subtitles.
This app is a versatile media converter that handles videos, audio, images, GIFs, and PDFs. It allows for format conversion, audio extraction, video compression, ringtone creation, and even basic video editing. It also includes a built-in media player and file management tools.
This app allows you to convert, compress, and edit videos directly on your device. It supports over 20 video formats and multiple audio formats, with features like audio extraction, GIF creation, and batch processing. All operations are performed locally for enhanced privacy.
Easily convert video files to various formats like MP3, MP4, and AVI. This app offers quick conversions, supports local and cloud storage, and provides convenient sharing options. It's designed for users who need to change video file types for accessibility or to save space.
Download, convert, and edit videos from various sources including websites, cloud storage, and your device. Organize your media library with a private manager, and convert videos to popular audio and video formats. Includes editing tools like trimming and filters.
Easily convert videos to various formats or extract audio. This tool offers compression, trimming, merging, and rotation features with support for numerous input and output file types. Local conversions are fast and do not require an internet connection.
This application allows you to download videos from cloud drives and edit their properties. You can convert videos to various formats like MP4, MPEG, MP3, and Quick Time, and adjust parameters such as resolution, bitrate, and audio settings.
Reduce video file sizes to free up storage space on your device. Compare compressed videos side-by-side, convert formats and codecs, and manage your media library efficiently. Optionally turn off audio and retain original video metadata.
Easily create high-quality videos with powerful editing tools or an AI editor. Customize with effects, music, and transitions. Perfect for social media, family memories, or promo clips.
Play virtually any video or audio file directly without conversion. Stream media from cloud services, network servers, or the web. Offers advanced subtitle support and playback controls.
This app is a versatile video converter and editor. It allows users to convert videos to various formats, extract audio, create GIFs, and merge clips. Enjoy fast, high-quality conversions and editing tools.
Easily convert video files to MP4 format directly on your device. This app prioritizes your privacy by processing all conversions locally, ensuring your files never leave your phone. Customize quality settings to balance file size and image resolution.
Easily convert video files to various formats like MP4, AVI, and MOV. This tool also allows for video cropping and playback, offering a comprehensive solution for media management on your device.
Convert video formats, trim clips, and play various media files in full screen. Customize conversion settings like frame rate and bitrate for a personalized experience. Supports a wide range of video and GIF formats.