250+ iOS apps curated and reviewed
The best 4k video converter apps on iPhone average 4.5★ across 250+ titles — we've ranked them by what real users actually keep on their phones. Updated August 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.7★ (2.2K) | No | Yes | Aug 2026 |
| 2 |  | Free | — | No | Yes | Aug 2026 |
| 3 |  | Free | 4.5★ (128) | Yes | Yes | Aug 2026 |
| 4 |  | Free | 4.4★ (19) | No | Yes | Aug 2026 |
| 5 |  | Free | 4.1★ (126) | Yes | Yes | Aug 2026 |
| 6 |  | Free | 4.5★ (10K) | No | Yes | Aug 2026 |
| 7 |  | Free | 4.2★ (81) | No | Yes | Aug 2026 |
| 8 |  | Free | 4.7★ (24K) | Yes | Yes | Aug 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.
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 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.
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.
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.
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.
Easily transform video files into various formats for compatibility with any device. Streamline your workflow with batch conversions and quick processing speeds. Organize your media library by selecting custom save locations.
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.
Easily convert local videos between various formats like MOV, MP4, and 3GP offline. This app offers fast, clean conversions to HD quality, making it ideal for content creators and daily updaters. All conversions are processed locally for enhanced privacy.
Easily convert and compress videos to various formats, including those not supported by your device. This app also allows you to resize videos, convert audio files to video with custom images, and play back your converted media. Create custom playlists for your video library.
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.
