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Mobile app · Text to speech & voice

Supertonic TTS

Local AI Text-to-Speech using Supertonic ONNX.

  • Free, with trade-offs
  • Android
  • Open source

Overview

Supertonic TTS is a text-to-speech mobile app, available on Android.

Features described in its F-Droid listing: local model execution, read-aloud and offline use.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information
  • “Local AI Text-to-Speech using Supertonic ONNX” — F-Droid, 10 November 2026
  • “Local AI Text-to-Speech using Supertonic ONNX” — F-Droid, 10 November 2026
  • “Local AI Text-to-Speech using Supertonic ONNX” — F-Droid, 10 November 2026
  • “It uses Supertonic ONNX models to provide high-quality speech synthesis entirely offline, ensuring privacy and availability without an internet connection.” — F-Droid, 10 November 2026

At a glance

Supertonic TTS is free, with trade-offs: it relies on a non-free online service.

Its licence (GPL-3.0) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

  • Open source code
  • No advertising
  • Commercial use allowed

Weaknesses

  • Flagged by F-Droid: relies on a non-free online service

Sources and checks

  • Facts collected from F-Droid (credit card, source code, publisher, licence, free status, platforms, ads, commercial use, version) —
  • Last technical check: 5 November 2026
  • Description from F-Droid — F-Droid (citation courte)

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