Privacy Policy

Privacy at a Glance

Introduction

Kaizen is a personal development app that helps you build habits, track workouts, manage tasks, and improve yourself 1% every day.

This Privacy Policy explains what data we collect, why we collect it, and how you can manage your information. We believe in transparency and keeping things simple.

Questions? Contact us at info@kaizen-app.co.uk

Who We Are

Kaizen is operated by George Reilly, a sole trader based in the United Kingdom.

• Email: info@kaizen-app.co.uk
• Website: kaizen-app.co.uk

Information We Collect

Information You Provide

Information Collected Automatically

• Device type and operating system
• App version
• Crash reports and error logs
• Push notification tokens

How We Use Your Information

We do not use your data for:

• Advertising or marketing to third parties
• Selling to data brokers
• Training AI models (OpenAI API data is not used for training)

Voice Recordings and AI

When you use voice features (voice notes, food logging), here's what happens:

1. Your audio is stored securely so you can play it back anytime
2. A copy is sent to OpenAI's API for transcription (speech-to-text)
3. OpenAI returns the transcription, which is saved alongside your audio
4. OpenAI does not store or use your audio beyond processing the request

Your voice recordings are yours. We store them so you can listen back to your journal entries and reflections.

OpenAI's API data usage policy states they do not use API inputs to train their models. Learn more: OpenAI API Data Usage

Photo Handling

Who We Share Data With

We only share data with services essential to running Kaizen:

We never share your data with advertisers, data brokers, social media platforms, or any other third parties.

Project Collaboration

When you invite someone to a project:

• They can see project tasks, notes, and activity
• They can see your name and profile picture
• They cannot see your other projects, habits, or personal data

You control who has access. You can remove collaborators at any time.

Data Security

We take security seriously:

• Encryption in transit: All data is transmitted over HTTPS/TLS
• Encryption at rest: Data is encrypted on Supabase servers
• Password hashing: Passwords are never stored in plain text
• Access controls: Only you can access your data (unless you share projects)

Data Retention

Your Rights

You have the right to:

• Access your data — see what we have stored
• Export your data — get a copy in a portable format
• Correct inaccurate data
• Delete your account and all associated data
• Withdraw consent for optional features like notifications

To exercise these rights, email us at info@kaizen-app.co.uk or use the in-app settings.

For UK/EU Residents (GDPR)

You have additional rights under GDPR including the right to restrict processing, object to processing, and lodge a complaint with a supervisory authority (ICO in the UK).

Children's Privacy

Kaizen is not intended for children under 16. We do not knowingly collect data from children. If you believe a child has provided us with personal data, please contact us and we will delete it.

International Data Transfers

Your data may be processed in countries outside the UK where our service providers operate (e.g., Supabase servers). We ensure appropriate safeguards are in place for international transfers.

Changes to This Policy

We may update this policy from time to time. When we make significant changes, we'll notify you through the app. The "Last updated" date at the top will always reflect the current version.

Contact Us

Have questions about your privacy? We're here to help.

Email: info@kaizen-app.co.uk