Format Genius vs FormatFox

When dealing with audio, video, and image files, format incompatibility often brings inconvenience. Format Genius, with its efficient and stable conversion capabilities, supports mutual conversion of multiple file formats, allowing files to be used smoothly in different devices and scenarios, easily solving format adaptation problems. This app provides comprehensive format conversion services through three core functions: Audio Format Conversion: Supports bidirectional conversion of mainstream audio formats such as MP3, WAV, FLAC, and AAC. It allows customizing parameters like bit rate and sample rate, ensuring sound quality while adapting to different playback devices. Converted audio can be directly saved locally or shared, meeting various needs such as music playback and audio editing. Video Format Conversion: Compatible with common video formats including MP4, AVI, MOV, and MKV. It can automatically match the optimal format according to device models (such as mobile phones, tablets, TVs) and allows manual adjustment of resolution, frame rate, and encoding methods. The conversion process is efficient while retaining video clarity, adapting to various playback software and hardware devices. Image Format Conversion: Supports mutual conversion of image formats like JPG, PNG, GIF, and WEBP. It can batch process multiple images and provides additional functions such as compressing image quality and adjusting dimensions. Converted images can maintain clear quality while optimizing storage size, suitable for scenarios like social sharing, document insertion, and design production. Whether processing multimedia files at work or solving format compatibility issues in daily life, Format Genius can be a practical tool for handling file formats with simple operations and efficient conversion capabilities. EULA：https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy：https://sites.google.com/view/format-genius-0010/privacy

FormatFox is a free iPhone app that converts images, PDFs, and audio entirely on your device — no subscription, no uploads, and no account. It converts HEIC, JPG, and PNG, resizes images, and combines multiple photos into a single PDF, all offline. A one-time Pro unlock adds batch conversion and audio transcoding to M4A, WAV, AIFF, and CAF. Most converters meter you to one file, hide a weekly subscription behind the Save button, or quietly upload your private files to a server. FormatFox does none of that. Every conversion runs 100% on your device. Nothing is uploaded. It even works in Airplane Mode. FREE, forever: • Convert HEIC, JPG and PNG • Resize images • Combine photos into a single PDF • See the exact before → after size of every file PRO — one simple, one-time unlock (no subscription): • Batch-convert many files at once • Transcode audio: M4A, WAV, AIFF, CAF • Quality & compression control • Keep EXIF metadata • "Convert with FormatFox" share action from any app • Remove ads No account. No login. No tracking of your files. Just convert and get on with your day.