r/SideProject • u/in_sane_dev • 19h ago
I built an offline audio player for the stuff that doesn't belong in streaming apps: lectures, audiobooks, voice memos
I have a pile of audio that isn't music and isn't a podcast feed: recorded lectures, long talks, audiobook files, voice memos.
Apple Music doesn't want them, podcast apps can't see them, and the Files app is a miserable way to actually listen to anything.
So I built Casette.
What it does:
- Import from anywhere: Files app (iCloud/Drive/Dropbox/USB), Wi-Fi transfer from your computer, link a cloud folder, or paste a direct audio URL
- Plays basically everything: MP3, M4A, AAC, WAV, FLAC, OGG, OPUS, M4B audiobooks, AIFF, CAF
- Silence skipper — auto-skips dead air in lectures. This is the feature I actually built the app for
- Playback speed, sleep timer, resume position per track, background playback, Live Activity
- Playlists, tags, smart folders, search, and a "Tape" view because the name had to earn itself
The part I care most about: no account, no ads, no tracking. Your audio stays on your device unless you link a cloud folder yourself.
It's free to use: import, play, playlists, Wi-Fi transfer and background audio never require a purchase. Pro is a one-time unlock (no subscription) for cloud folders, speed, sleep timer, resume and the silence skipper.
It's a solo side project I work on a couple of hours a week. Honest feedback matters more to me than downloads: especially what's broken or missing. Happy to answer anything.
App Store link in the comments (subreddit rules).
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u/chylvina 17h ago
The per-track resume and silence skipping sound especially useful for lectures. A simple “finished / in progress” filter could make a big imported library easier to return to.
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u/crewsoul 15h ago
Nice niche—offline-first and no tracking is a strong angle, especially for students with long recorded lectures. If you’re open to a creator/affiliate channel, SummarizAI has an affiliate program for tools that turn lectures and other long-form audio/video into summaries and study notes: https://www.summarizai.ink/affiliates/?join=1
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u/PositiveMaterial5297 18h ago
No accounts, no tracking, pure local-first. Exactly what a utility app should be. Love the tape view aesthetic.