Reverse Audio by developer Nobutaka Yuasa provides specialized audio manipulation capabilities for iOS devices, focusing specifically on reverse playback functionality. The application fills a niche gap in the audio tool market by offering straightforward sound reversal alongside basic recording features, positioning itself as a utility for both creative professionals and casual users seeking audio experimentation tools. The application's core functionality centers on microphone recording followed by forward or reverse playback options. Users can import audio files from other applications or the Files app, supporting multiple formats including WAV, MP3, MP4, M4A, AIFC, AIFF, CAF, and FLAC. During playback, the app provides granular control through adjustable playback rates ranging from 0.5x to 2.0x speed and pitch modulation capabilities spanning -2 to +2 octaves in half-tone increments. These technical specifications demonstrate competent audio processing capabilities within the iOS environment. User experience reflects a minimalist interface design prioritizing functionality over aesthetic sophistication. The recording process initiates with a single tap, while playback controls remain prominently displayed throughout operation. Real-world usage patterns indicate primarily recreational application, with users experimenting with reversed speech, musical phrases, and sound effects. The interface lacks advanced editing features but maintains reliability during basic recording and playback operations without significant latency or processing delays. User feedback trends consistently highlight satisfaction with the app's specialized functionality. Reviewer Sonicat noted on January 7, 2025: 'It is so fun to screw around with this. Saying things in reverse.' Another user, gravity falls lover 2364, commented on June 25, 2025: 'I have this five stars cuz it works really good.' These sentiments reflect the general consensus regarding the app's reliable performance for its intended purpose, though reviews provide limited insight into professional or technical applications. The application demonstrates strength in its focused functionality and format compatibility but shows limitations in feature depth compared to comprehensive audio editing suites. While suitable for quick audio reversals and basic pitch/speed adjustments, professional users may require additional editing capabilities. The app serves ideal use cases including audio experimentation, content creation preliminaries, educational demonstrations of audio phenomena, and recreational sound manipulation without demanding advanced audio engineering requirements.