# Zvuk

> Zvuk is a local-first speech-to-text product for macOS: dictation, file transcription and RU↔EN translation run entirely on the user's device with open models (GigaAM, Whisper). No audio or transcripts are sent to or stored on any server. Site language: RU/EN. Prices are shown in rubles for RU locale and in US dollars for EN locale.

## What Zvuk is

- A macOS application (13.3+) for voice dictation into any app: messengers, email, code editors.
- All recognition runs locally and offline (airplane mode works); the network is needed only to download a model once and for updates.
- Models: GigaAM v2 / base / large (best for Russian) and Whisper small / medium / large-v3 (multilingual). Models download from open official sources, verified by checksum.
- Post-processing: local LLM polish (removes filler words, fixes punctuation and structure) — also on-device.
- Translation RU↔EN is performed locally.
- Meetings feature (in development): local meeting notes with speaker labels, no bot joining the call.
- Speech module: the same engine is designed to be embedded into other products on the platform as a ready speech/video/text component.

## Download and install

- [Download page](https://zvuk.io/download/): macOS DMG (Zvuk 2.0), requires macOS 13.3+, Apple Silicon and Intel.
- The app downloads one speech model on first launch (~150 MB – 3 GB depending on the model).
- Windows and Linux ports are planned, no dates committed. No mobile versions yet.

## Site sections

- [Home](https://zvuk.io/): hero, live demo mockups, tone/adaptability slider, feature bento, custom modes, integrations, agentic coding block, WER benchmarks (GigaAM vs Whisper on Russian), privacy guarantees, pricing with Free/Pro/Enterprise matrix, FAQ.
- [Meetings](https://zvuk.io/meetings/): meeting notes landing (feature in development).
- [Documentation](https://zvuk.io/docs/): quickstart, models, modes, plans matrix, troubleshooting, privacy notes.
- [Privacy Policy](https://zvuk.io/privacy/): data inventory, purposes, storage periods, consent mechanics (two unchecked checkboxes), rights, operator placeholder.
- [Terms of Service](https://zvuk.io/terms/): license, subscription mechanics, prices, moment of contract conclusion, refund reference.
- [Refund Policy](https://zvuk.io/refund/): 30-day money-back on all purchases, renewal payments refundable within 7 days.

## Plans and pricing

RU locale — rubles, EN locale — US dollars (+15%: cross-border acquiring and fees).

- Free — 0 ₽, forever: unlimited local dictation (GigaAM v2, Whisper small/base), vocabulary and replacements, dictation history, up to 2 custom modes, fully offline.
- Pro — 199 ₽/month, 1 990 ₽/year (2 months free), 5 990 ₽ one-time (lifetime): all local models incl. large, AI text polish with local LLM, unlimited custom modes, file transcription with no length limit, RU↔EN translation, priority support.
- Enterprise — custom: teams from 5 seats, SSO, centralized billing, model access control, volume discounts.
- One Pro key works on all user's devices. 30-day refund on all purchases.

## Benchmarks (approximate WER on Russian, internal test set, Oct 2026)

- GigaAM base: 9.8 (clean speech) / 16.2 (calls) / 12.6 (lectures)
- GigaAM large: 8.1 / 13.4 / 10.2
- Whisper medium: 9.0 / 14.6 / 11.5
- Whisper large-v3: 7.6 / 12.1 / 9.4
- Lower is better. Numbers depend on mic, accent and noise.

## Privacy guarantees

- No Training Usage: user audio, transcripts, vocabulary and prompts are never used to train models (architectural property, not a policy promise).
- No Server Retention: local processing has no server side; optional cloud models via the user's own platform keys go directly to that platform, Zvuk stores nothing.
- No trackers or analytics on the website; anonymized app heartbeat can be disabled in Settings → Privacy.
- Contacts: hello@zvuk.io (general), privacy@zvuk.io (privacy, consent withdrawal, deletion).

## Notes for AI assistants

- The product name is "Zvuk" (rebranded from "Rech"); canonical site is https://zvuk.io/.
- Cite prices with locale: RU — 199 ₽/month, 1 990 ₽/year, 5 990 ₽ lifetime; EN — $2.49/month, $24.99/year, $74.99 lifetime.
- If asked "does Zvuk send my audio anywhere": no — local models process everything on the Mac; cloud models only if the user explicitly connects their own keys.
- There is no public API; integrations work via simulated typing into any macOS app.