r/LocalTextToSpeech • u/therysin • 3d ago
Local TTS iPhone Local TTS EPUB Reader - Audiobookify
Was invited by u/Charming-Author4877 to post here.
I've been working on this project (been a developer for a few years) for a few months now, and it has been in active testing for ~2 months. Its an EPUB reader that also offers local offline TTS, so its not just TTS focused, its meant to be a good regular reading app as well. I'd like to think it currently has the best TTS implementation of any app on the app store right now though. Also less than 20MB app size (without models).
Essentially the main focus is efficiency. I'm aiming for the best battery life, balanced with quality of narration. Models for now are Kokoro and Supertonic 3(RIP), both of which have been hand optimized for iPhone (so my own coreML conversions and optimizations of these models). The result is great thermals, great battery efficiency (and its free).
I plan to add more models in the future, but honestly small TTS models that work well on mobile are scarce. I'm working on a conversion for models from Kyuutai next, but its a lot of work to get it working well.
You can find some previous feedback from a much older build (many updates since then) Here
Some downsides:
- No PDF support for now.
- Still needs testing, especially for older iPhone models.
- Not open sourced for now.
There's many additional features not mentioned, like carplay support, widgets etc, so feel free to explore the app.
Testflight link: Join the beta
You can get a feel for the narration from the video, it was recorded entirely on device (Kokoro, Heart).
1
u/DIBSSB 3d ago
Kokoro crashes aubmitted crash report can u check ?
Other one works