Last updated: 10 November 2026
Lean Solution is provided by Chen Hao Chan. Contact Lean.solution.6s@gmail.com with questions about this policy or a request concerning your information.
The iPhone and iPad app
Your analyses stay on your device.
Lean Solution stores analyses, saved results and preferences locally. The app does not automatically upload your analyses to developer servers or synchronise them between devices. No account is required.
Tracking and analytics
The app contains no advertising, does not send usage analytics to the developer, and does not track you across other companies’ apps or websites. App Store and device diagnostic information may separately be handled by Apple according to your settings and Apple’s policies.
Backups, sharing and deletion
Depending on your device settings, app data may be included in device backups, including iCloud Backup. You choose when to export or share a result. Information sent to another app, service or person is handled by that recipient under their own policies. You can delete saved analyses in the app; device backups and exported copies are managed separately.
This website
The improvement map and Guide run in your browser. Your selections are not sent to the developer, stored as your account data or saved across reloads.
This website does not use advertising trackers or optional usage analytics. Cloudflare hosts and protects the site. It may process technical information such as IP addresses, request details and security events to deliver and protect the service. When the feedback security check is enabled, Cloudflare Turnstile also processes information needed to check for automated abuse. See Cloudflare’s privacy policy.
Support messages
If you submit the feedback form, we receive the name you choose to provide, your reply email, topic, message and optional device/version details. These are processed through Cloudflare’s email service and delivered to the support Gmail inbox. If you email us directly, your email address, message and any attachments are received through the relevant email services.
We use this information to respond, investigate issues and consider improvements. It is not added to a marketing list. Support messages are kept only as long as needed to manage the request, follow up on an issue and meet applicable obligations. Please do not include information that is not necessary for your request.
For website and support information, we rely on our legitimate interests in providing support, improving the app and keeping the service secure. Providing a name is optional. An email address and message are needed if you want to use the contact form and receive a reply; you can use the app without contacting us.
Cloudflare and Google may process information in countries outside your own. Their privacy notices describe how they handle international processing and the safeguards they use.
Depending on the law that applies, you may have rights to access, correct, erase, restrict or object to the processing of your information. You can also complain to your local data-protection authority. In the UK, contact the Information Commissioner’s Office.
You can ask about access, correction or deletion by emailing Lean.solution.6s@gmail.com. We may need enough information to identify the relevant correspondence. Google handles Gmail under its privacy policy.
Changes to this policy
We may update this page when the app, website or support process changes. The date above identifies the latest version.