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LysnBox
Turn books, PDFs & articles into audiobooks, fully offline
LysnBox reads your EPUBs, PDFs, web articles and pasted text aloud with natural AI voices that run entirely on your iPhone. No cloud, no API keys, no subscription: speech is synthesized live on the Apple Neural Engine in 31 languages. Follow along with word-level highlights, resume exactly where you left off, and control playback from the lock screen or Bluetooth headphones. Free on the App Store and open source (MIT).
Hi Product Hunt! 👋
I built LysnBox because I had a growing pile of EPUBs, PDFs and saved articles and never enough time to sit down and read them. Existing read-aloud apps either sounded robotic or sent my books to a cloud API and charged per minute.
So LysnBox does everything on-device:
• Import an EPUB, PDF, web link or pasted text and tap play, with no conversion step
• Natural AI narration in 31 languages, powered by Supertonic 3 on the Apple Neural Engine
• Nothing leaves your phone and no audio is stored to disk
• Word-level highlights, 0.8x–2x speed, and it resumes exactly where you left off
• Lock screen and Bluetooth controls for listening on the go
It's free on the App Store and fully open source (MIT), so you can build it yourself too.
I'd love your feedback: which voices, languages or formats should I add next?
No comment highlights available yet. Please check back later!
About LysnBox on Product Hunt
“Turn books, PDFs & articles into audiobooks, fully offline”
LysnBox was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #321 on the daily leaderboard. LysnBox reads your EPUBs, PDFs, web articles and pasted text aloud with natural AI voices that run entirely on your iPhone. No cloud, no API keys, no subscription: speech is synthesized live on the Apple Neural Engine in 31 languages. Follow along with word-level highlights, resume exactly where you left off, and control playback from the lock screen or Bluetooth headphones. Free on the App Store and open source (MIT).
LysnBox was featured in iOS (111k followers), GitHub (41.4k followers), Books (122.8k followers) and Audio (2.2k followers) on Product Hunt. Together, these topics include over 90.3k products, making this a competitive space to launch in.
Who hunted LysnBox?
LysnBox was hunted by Joseph Ipe Thekkekara. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how LysnBox stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Joseph Ipe Thekkekara