SyncVocal Privacy Policy

Last updated: October 2026

Overview

SyncVocal is a teleprompter extension that helps you present scripts with voice-synced scrolling. We prioritize your privacy and keep your data local whenever possible.

Data We Collect

• Scripts: By default, your scripts are stored locally in your browser's localStorage and never leave your device. If you're signed in and click "Save to My Scripts," that specific script's text is stored on our servers (linked to your account) so you can access it from any device — nothing is uploaded unless you take that action.
• Settings: Font size, scroll speed, theme, and other preferences are stored locally in localStorage.
• Account: If you create an account, we store your email address, your name and profile picture if you sign in with Google, your plan, and your remaining AI credits.
• Usage statistics: The extension creates a random install ID (not linked to your identity unless you sign in to SyncVocal from the extension) and sends basic events such as opening the prompter, session length, whether voice sync was on, and the number of slides and words. It never sends the text of your script or slides for statistics.
• How you found us: When you sign up, we record the website or campaign that referred you (for example, a search engine), so we know which channels work.
• Voice Data: When you enable voice sync, your browser sends audio to Google's speech recognition servers. This is handled by your browser's built-in Web Speech API, not by us. We do not have access to this data.

AI Script Drafting and Polish

With your own API key. When you use AI features with your own Google Gemini, OpenAI, or Anthropic key:

• Your script text is sent to the selected AI provider's API
• API keys are stored locally in localStorage
• We do not store or have access to your API keys or the content sent to AI providers
• Review each provider's privacy policy for details on how they handle your data

Without your own key (your free first draft, or Pro AI credits). The extension sends your slide text, speaker notes and your answers to the interview questions, and the Polish Script feature sends your script text, to SyncVocal's server. Our server forwards them to Anthropic's Claude API to write the result and returns it to you. We do not store your slide text, speaker notes, answers or the generated script on our servers; we record only that a draft was used, so we can count your free draft or monthly credits. Anthropic processes this content under its own privacy policy and terms.

Google Slides Integration (Extension)

For the Chrome extension's Google Slides integration:

• We use the Google Slides API to fetch presentation content with your permission
• Authentication is handled through Google's OAuth
• We do not store or have access to your Google account credentials
• Presentation content is processed in your browser and is not stored on our servers. If you use AI drafting without your own API key, the text is sent through our server to produce the draft, as described above, and is not kept

Data Storage

Settings and API keys are always stored locally in your browser's localStorage — we never see them. Scripts are local-only by default; a script is only stored on our servers if you explicitly click "Save to My Scripts" while signed in, so you can pick it up from another device. Unsaved local data is deleted if you clear your browser data or uninstall the extension.

Third-Party Services

SyncVocal uses the following third-party services:

• Google Speech Recognition: For voice sync (via browser's Web Speech API)
• Google Gemini: For AI script improvement (when you provide an API key)
• OpenAI: For AI script improvement (when you provide an API key)
• Anthropic: For AI script improvement (when you provide an API key), and to write scripts when you use your free draft or Pro AI credits
• Google Slides API: For presentation import (extension only)

Data Sharing

We do not sell, rent, or share your data with third parties for marketing purposes. We share data only with services that help run SyncVocal:

• Cloudflare hosts our website and database.
• Anthropic writes scripts when you use your free AI draft or Pro AI credits, as described above.
• The AI provider you choose (OpenAI, Anthropic or Google) when you use your own API key.
• Resend sends our emails, such as password resets and occasional product updates.
• Stripe processes Pro payments. We never see or store your card details.

Data Security

We implement reasonable security measures to protect your data. However, since data is stored locally on your device, you are responsible for securing your device and browser.

Your Rights

• You can delete your scripts and settings at any time by clearing your browser data or using the extension's delete options
• You can ask us to delete your account and everything stored with it by emailing hello@syncvocal.com
• You can revoke Google Slides access at any time through your Google Account settings
• You can revoke API keys at any time through the respective AI provider's dashboard

Children's Privacy

SyncVocal is not intended for children under 13. We do not knowingly collect personal information from children under 13.

Changes to This Policy

We may update this privacy policy from time to time. We will notify users of significant changes by updating the date at the top of this policy.

Contact Us

If you have questions about this privacy policy, please contact us at:

hello@syncvocal.com