Apple Silicon Native

Your voice,
on your silicon.

Sovereign Voice runs a private speech synthesis engine directly on your Mac. No internet required. No subscription. Your voice data never leaves your hardware. Free to try — 25-generation trial with one library voice and one free voice clone. Get Pro for $19 (one-time, no subscription) to unlock the Warm and Crisp voices, extra clones, and Long-Form mode. License key emailed instantly.

Download for Mac Get Pro — $19

Free to download  ·  Requires Apple Silicon Mac  ·  macOS 13+

Why Sovereign

Built for the hardware in your bag.

💻

On your Mac

The synthesis engine runs entirely on your Apple Silicon chip. Close the laptop, pull the ethernet — your voice studio still works.

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One-time download

Pay once for Pro ($19), synthesize forever. No per-character metering, no monthly API bills, no surprise overage charges.

⚡

Apple GPU (Metal)

The TTS model runs on the GPU via Apple's Metal framework — private, quiet, battery-efficient. On-device synthesis on M1 and later.

The difference

Cloud voice services vs. Sovereign

Cloud services

  • Your voice clone lives on their servers
  • Pay per character, every time
  • Requires internet to synthesize
  • Enterprise terms, enterprise data policies

Sovereign Voice

  • Voice model stays on your hardware, always
  • Synthesize as much as you want, no metering
  • Works fully offline, on any network
  • Local-first — your voice data never leaves your hardware

Pricing

Free to try. Pro is $19, one-time.

Free

$0
25 generations  ·  no card needed
  • 1 library voice (Neutral) + 1 free voice clone
  • 25-generation trial — keep going after, no hard wall
  • Fast quality, Short mode
  • WAV export
  • Works fully offline
Download Free
Available Now

Pro

$19
one-time  ·  no subscription
  • No trial counter
  • All 3 library voices (Neutral, Warm, Crisp)
  • Additional voice clones beyond the free one
  • Long-Form mode for articles and chapters
  • Everything in Free, forever, offline
Get Pro — $19 →

License key emailed instantly after payment

FAQ

How it works

How do I get my license key?

After payment, you'll receive an email with your license key immediately. Paste it into the app under Settings → License to unlock Pro.

Is it really one-time? No subscription?

Yes. $19 once, Pro is yours forever. No recurring charges, no per-character billing, no API keys.

What if I lose my license key?

Email hi@eidetic.works from the address you used to purchase and we'll resend it.

Does it work offline?

Yes. The synthesis engine runs on your Apple Silicon chip and the model weights ship inside the DMG. No internet required after install.

Does the app phone home?

There is an optional anonymous usage ping, off by default. Nothing is sent unless you turn it on in Settings, and it never includes audio, text, or personal data.

How fast is it?

A short sentence renders in about 10 seconds on an M4 Air when the engine has just started (p50 10.0s, p90 16.3s, n=30), and about 5 seconds once it has been running a while (p50 4.6s, p90 5.5s). The very first render after install takes around two minutes while the model loads. It is a local render, not real-time streaming.

Updates

Stay in the loop

Drop your email for product updates and new voice profiles. No spam.

$19 one-time purchase. No subscription, ever. 30-day refund, no questions asked.