I built a text-to-speech app for macOS that runs completely offline. No cloud, no subscriptions, no account required. It uses on-device models for voice synthesis and cloning. Everything runs locally on your Mac’s GPU, so there are no token limits or usage caps. Key features: ∙ One-time purchase ($19.99) ∙ Voice cloning from short audio samples ∙ Handles book-length content (unlimited input) ∙ Fast synthesis using Apple Silicon/Metal ∙ Zero telemetry or tracking ∙ Works offline indefinitely I built this as an alternative to services like ElevenLabs after getting frustrated with subscription fatigue and API rate limits. For anyone who needs TTS regularly (accessibility, content creation, language learning), the costs add up fast. The privacy aspect is a bonus – nothing leaves your machine.

Available on the Mac App Store:

https://apps.apple.com/sg/app/potato-labs/id6758903660?mt=12

Happy to answer questions about the implementation or design choices.