Apple Intelligence · On-Device · No Internet

Sigma
Vox

Voice AI from Your Own Files

Load any document. Ask questions by voice. Receive spoken answers — in your language — processed entirely on your device with no internet connection required.

100% On-Device 8 Languages No Account No Subscription Totem Mode


Your file.
Your assistant.

Sigma Vox does not connect to the internet. It does not send your voice or your data anywhere. Everything — speech recognition, language processing, voice synthesis — runs on your device using Apple Intelligence.

Step 01
Load your file

Open Settings and load any .txt, .pdf, or .json file. A restaurant menu, a technical manual, a museum guide, an employee handbook — anything up to 12,000 characters.

Step 02
Ask by voice

Tap Speak and ask your question naturally. Sigma Vox listens, detects your language automatically, and processes your question using Apple Intelligence on-device.

Step 03
Receive the answer

The answer is spoken back to you in your language — regardless of what language your file is written in. Ask in English, answer in English. Ask in Spanish, answer in Spanish.

🇧🇷Português
🇺🇸English
🇪🇸Español
🇫🇷Français
🇩🇪Deutsch
🇮🇹Italiano
🇯🇵日本語
🇨🇳中文

A multilingual
kiosk in minutes.

Enable Totem Mode and your iPad becomes a self-service station. Visitors tap their language flag, ask their question, and receive a spoken answer — with zero staff involvement.

!
Important · Totem Mode Setup
Download speech packs before deployment
For Totem Mode to work fully offline, each language must have its speech recognition pack downloaded on the device. Sigma Vox shows you which packs are ready inside Settings → Totem Mode.
01Open iPhone / iPad Settings → Apple Intelligence & Siri
02Add each language you need — Siri will download the pack automatically
03Return to Sigma Vox Settings → Totem Mode and tap ↺ to verify
04Languages marked ✓ are ready for fully offline operation
Sigma Vox Settings screen
01 — INPUT LANGUAGE

Select the language you will speak. Sigma Vox uses this to configure the speech recognizer. Responses are always automatic — the app detects your question's language and replies in kind, regardless of the file language.

02 — RESPONSE MODE

Knowledge only — answers exclusively from your file. If the answer is not there, it says so. No hallucination. Knowledge + general — checks your file first, then falls back to Apple Intelligence general knowledge on-device.

03 — KNOWLEDGE FILE

Load any .txt, .json, or .pdf file up to 12,000 characters. The file shown — sigmavox_knowledge.txt — is the Sigma Vox reference guide included with the app. Replace it with your own content: a menu, a manual, a product catalog, a museum guide.

04 — CONVERSATION MODE

After each response, the microphone opens automatically. No tapping required. On Mac, keep working while asking follow-up questions. On iPhone, connect via Bluetooth to your car and drive hands-free. On iPad, leave it on the desk and have a full back-and-forth conversation.

05 — TOTEM MODE

Turns the device into a multilingual public kiosk. Visitors tap their language flag and speak. Languages marked ✓ are ready — those marked ○ need their speech pack downloaded via Settings → Apple Intelligence & Siri. One single knowledge file, automatically translated into all active languages. No separate files per language.

06 — GET IN TOUCH

Doubts, suggestions, custom templates — web@musicamania.com.br

Response within 24 hours on business days. Include your device, iOS version, and a brief description.
For Kiosks
Museums & Galleries

Load your exhibition guide. Visitors ask about artworks, artists, and collections — in their own language — without waiting for staff.

For Hospitality
Hotels & Reception

Load hotel information: rooms, amenities, check-in procedures, local attractions. Guests get instant answers at any hour.

For Business
Retail & Events

Load your product catalog, pricing, or event schedule. Customers self-serve in their language while your team focuses on higher-value interactions.


Hands-free,
always listening.

Conversation Mode keeps the microphone open after each response. You ask, it answers, you ask again — without touching the screen.

In the Car
Bluetooth driving

Connect your iPhone via Bluetooth. Load delivery routes, customer data, or reference material. Ask questions and receive spoken answers while keeping your hands on the wheel and eyes on the road.

At Work
Hands-free reference

Working with your hands? Load your technical manual or safety procedures. Ask follow-up questions without stopping what you are doing. Conversation Mode waits up to 45 seconds for you to speak.

Studying
Active review sessions

Load your study material and have a back-and-forth session with the content. Ask a question, hear the answer, ask the next — a more active method than reading alone.


One tool.
Many contexts.

Any information that can be written in a file can become a voice assistant. The range of use cases is limited only by what you load.

🏥
Medical & Clinical

Load procedure descriptions, insurance coverage, preparation instructions, or post-care guidelines. Patients access information privately, without waiting for staff. Knowledge Only mode ensures no invented medical information.

⚖️
Legal & Professional

Load a contract, regulation, or internal policy. Ask questions in plain language and receive precise, file-sourced answers. Fully on-device — no document content ever leaves the device.

🏭
Industrial & Field

Technicians load equipment manuals and consult by voice while working — hands dirty, eyes on the task. Conversation Mode allows follow-up questions without stopping the procedure.

🎓
Education & Training

Students load lecture notes or exam content and review by asking questions aloud. Corporate onboarding teams load employee handbooks so new hires can ask privately without feeling they should already know.

🛎️
Concierge & Hospitality

Load the full hotel or venue information. Guests ask about amenities, local attractions, or check-out procedures in their own language — at any time, without interrupting staff.

🚗
Mobile & Field Sales

Load product specs, pricing, or customer data before a meeting. Ask questions hands-free while driving between appointments. All data stays on your device — no CRM required in the field.


Nothing leaves
your device.

Sigma Vox was designed from the ground up with privacy as a core constraint — not a feature added later.

No audio is recorded or stored. No questions are logged. No responses are saved. No analytics are collected. No account is required. No internet connection is used for processing. The knowledge file is loaded into memory only — when you close the app, the content is gone.
Processing
Apple Intelligence

All language processing uses Apple's on-device AI — the same technology powering Siri on Apple Silicon devices. No third-party AI services. No external API calls.

Storage
Memory only

Your knowledge file is never written to disk by Sigma Vox. It lives in RAM during the session and is gone when the app closes. Only your preferences are stored between sessions.

Network
Zero requests

Sigma Vox makes no network requests. It works in airplane mode, in a Faraday cage, on an airgapped device. There is no server to breach because there is no server.


Sigma Vox
Support

Sigma Vox is developed and maintained by Musicamania Tecnologia. For questions, feedback, or bug reports, reach us directly.

Contact
Get in touch

Response within 24 hours on business days. Include your device model, iOS version, and a brief description of the issue.

[email protected]
Requirements
System
iPhone 15 Pro / 15 Pro Max or later
iPhone 16 / 16 Plus / 16 Pro / 16 Pro Max
iPad with M1 chip or later
Mac with Apple Silicon M1 or later
iOS / iPadOS 26 or later
macOS 26 or later
Apple Intelligence must be enabled
Availability
App Store
Sigma Vox ↓ Download
Universal app — one purchase covers iPhone, iPad, and Mac.

Requires Apple Intelligence enabled on device.
Does it work without internet?

Yes. Sigma Vox works entirely offline. All speech recognition, language processing, and voice synthesis run on-device using Apple Intelligence. No internet connection is required at any point.

What file formats are supported?

Plain text (.txt), JSON (.json), and PDF (.pdf) with selectable text. Files up to 12,000 characters. The content can be in any language — Sigma Vox reads and understands it regardless.

How does Totem Mode work in other languages?

Each language requires its speech pack downloaded via Siri settings. Go to Settings → Apple Intelligence & Siri, add each language, and Siri downloads the pack automatically. Sigma Vox shows which languages are ready inside the app.

Can I use it in the car?

Yes. Connect your iPhone via Bluetooth to your car audio system and enable Conversation Mode. The microphone opens automatically after each response, allowing fully hands-free operation while driving.

Which devices are supported?

Any device that supports Apple Intelligence: iPhone 15 Pro and later, all iPhone 16 models, iPad with M1 or later, and Mac with Apple Silicon M1 or later. Apple Intelligence must be enabled in Settings.

Is my data safe?

Nothing ever leaves your device. No audio is recorded, no questions are logged, no analytics are collected. Your knowledge file lives in memory only and is gone when the app closes. No account, no cloud, no server.

No account required. No data collected. No network requests. All processing runs on your device using Apple Intelligence. Sigma Vox has no analytics, no cloud dependency, and no subscription.