Sailer: Audio File Player
Repeat, Slow Down, Spectrogram
Free · Designed for iPad. Not verified for macOS.
Sailer is a simple audio file player with a waveform display. The interactive waveform view allows precise and intuitive seeking, even in long-form audio such as radio broadcasts, audiobooks, and lectures. The marker feature makes it easy to repeat specific parts, perfect for language learning, transcription, music practice, and more.
Supports MP3, M4A, M4B, WAV, FLAC, MP4, MOV, and more.
Features:
• Seek by scrolling the waveform.
• Pinch-to-zoom for more precision.
• Use markers to bookmark specific positions*.
• Double-tap (or two-finger tap) between markers to play only that region (loop supported).
• Adjust playback speed from 0.25× to 4.0×.
• Add notes for future reference.
*Markers and notes are saved as a sidecar file, so your original audio file remains unmodified.
Advanced Features:
• Transcribe the selected region.
• Export the selected region.
• Display a spectrogram.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• You can now display a spectrogram.
The developer, Shu Kyogoku, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Shu Kyogoku
- Size
- 10.9 MB
- Category
- Music
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - iPad
Requires iPadOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- Copyright
- © 2025-2026 Shu Kyogoku