Privacy Policy
Last Updated: January 31, 2026
Koa ("we," "our," or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our mobile application Koa (the "App").
Please read this Privacy Policy carefully. By using the App, you agree to the collection and use of information in accordance with this policy.
Key Points
- •Voice recordings stay on your device - we never upload your audio
- •Transcription happens on-device - your voice is processed locally
- •AI feedback uses only text - we send transcripts, not recordings
- •You control your data - delete sessions anytime
- •Analytics are anonymized - and can be disabled
- •We don't sell your data - ever
Information We Collect
1.1 Information You Provide
Profile Information
- ●Display name (optional)
- ●Avatar selection or custom profile photo
Onboarding Preferences
- ●Speaking contexts (e.g., work meetings, presentations, interviews)
- ●Self-reported anxiety level
- ●Speaking experience level
- ●Personal goals for using the App
- ●Practice commitment preferences
Voice Recordings and Transcripts
- ●Audio recordings of your practice sessions
- ●Transcripts generated from your recordings
1.2 Automatically Collected Information
Usage Data
- ●App interactions and feature usage
- ●Screen views and time spent in the App
- ●Practice session frequency and duration
- ●Performance metrics (words per minute, filler word counts)
Device Information
- ●Device type and operating system version
- ●App version
- ●Anonymous device identifiers (randomly generated UUIDs)
1.3 Subscription Information
When you subscribe to Koa Premium, our payment processor (RevenueCat) collects:
- ●Purchase transaction details
- ●Subscription status and renewal information
- ●Payment method (processed by Apple - we do not receive payment card details)
How We Use Your Information
We use the information we collect to:
- ●Provide AI Coaching: Generate personalized feedback on your speaking practice using artificial intelligence
- ●Improve Your Experience: Track your progress, maintain practice streaks, and personalize content
- ●Process Subscriptions: Manage your premium subscription and access to features
- ●Analyze and Improve: Understand how users interact with the App to improve features and fix issues
- ●Communicate: Send important updates about the App (we do not send marketing emails)
How Your Data Is Processed
3.1 On-Device Processing
Voice Transcription: Your audio recordings are transcribed entirely on your device using on-device machine learning technology. Your voice recordings are never uploaded to our servers or any third-party service for transcription.
Local Storage: Your recordings, transcripts, and session history are stored locally on your device. We do not have access to this data unless you explicitly share it.
3.2 AI Feedback Generation
To generate personalized coaching feedback, we send the following to our AI service:
- ●Your transcript text (not the audio file)
- ●Speaking metrics (words per minute, filler word counts, etc.)
- ●Your feedback style preference
This data is processed through our secure server and is not stored by AI providers beyond the immediate request.
Third-Party Services
We use the following third-party services to operate the App:
Anthropic (Claude AI)
Purpose: Powers our AI coaching feedback
Data Shared: Transcript text and speaking metrics
Privacy Policy →OpenRouter
Purpose: Backup AI service provider
Data Shared: Transcript text and speaking metrics (only when primary service unavailable)
Privacy Policy →Supabase
Purpose: Secure API routing and optional analytics
Data Shared: Anonymous device identifiers for rate limiting; anonymized usage events
Privacy Policy →RevenueCat
Purpose: Subscription and in-app purchase management
Data Shared: Anonymous identifiers and purchase transactions
Privacy Policy →PostHog (Optional)
Purpose: Product analytics to improve the App
Data Shared: Anonymous usage events and app interactions
Privacy Policy →Analytics can be disabled - see Section 7
Data Storage and Security
5.1 Local Storage
- ●Voice recordings are stored only on your device
- ●Transcripts and session history are stored locally using encrypted device storage
- ●We retain up to 100 practice sessions on your device; older sessions are automatically deleted
5.2 Server-Side Data
- ●We do not store your voice recordings on our servers
- ●Transcripts sent for AI feedback are not retained after processing
- ●Anonymous usage analytics may be retained for product improvement
5.3 Security Measures
- ●All data transmission uses HTTPS encryption
- ●API keys are stored securely on our servers (never on your device)
- ●We implement rate limiting to prevent abuse
- ●Device storage encryption is provided by your operating system
Data Retention
| Data Type | Retention Period |
|---|---|
| Voice Recordings | Stored locally until you delete them |
| Transcripts | Stored locally until you delete them |
| Session History | Up to 100 sessions (oldest auto-deleted) |
| Usage Analytics | Up to 2 years |
| Subscription Data | Duration of subscription plus legal requirements |
Your Privacy Choices
7.1 Delete Your Data
- ●Delete individual practice sessions within the App
- ●Uninstall the App to remove all locally stored data
7.2 Analytics Opt-Out
You may disable analytics collection through the App settings or by contacting us.
7.3 Microphone Access
You can revoke microphone permission at any time through your device settings. The App requires microphone access to record practice sessions.
Children's Privacy
The App is not intended for children under the age of 13. We do not knowingly collect personal information from children under 13. If you are a parent or guardian and believe your child has provided us with personal information, please contact us so we can delete such information.
International Data Transfers
Your information may be transferred to and processed in countries other than your country of residence, including the United States. These countries may have data protection laws that are different from the laws of your country. We ensure appropriate safeguards are in place to protect your information in accordance with this Privacy Policy.
Your Rights
Depending on your location, you may have the following rights:
- ●Access: Request a copy of your personal information
- ●Correction: Request correction of inaccurate information
- ●Deletion: Request deletion of your personal information
- ●Portability: Request a copy of your data in a portable format
- ●Opt-Out: Opt out of certain data processing activities
To exercise these rights, please contact us using the information below.
10.1 California Residents (CCPA)
California residents have additional rights under the California Consumer Privacy Act, including the right to know what personal information is collected and the right to opt-out of the sale of personal information. We do not sell your personal information.
10.2 European Residents (GDPR)
If you are in the European Economic Area, you have rights under the General Data Protection Regulation, including the rights listed above. Our legal basis for processing your information includes your consent, our legitimate interests in operating the App, and contractual necessity.
Changes to This Privacy Policy
We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy in the App and updating the "Last Updated" date. You are advised to review this Privacy Policy periodically for any changes.
Contact Us
If you have questions or concerns about this Privacy Policy or our data practices, please contact us at:
Email: adirfromkoa@gmail.com