Privacy Policy

Last updated: September 15, 2026

This privacy policy applies to all mobile applications and web services published by Jeshii Lantz, including Rokuyo(六曜) — The Daily Fortune, Japan Driving Test Pro, the GuideOS mobile application, and the getguideos.com website.

1. Consumer Apps (Rokuyo, Japan Driving Test Pro)

Information We Collect

These apps do not collect any personally identifiable information directly. However, we use third-party services that may collect certain data:

Advertising ID — Used by Google AdMob to serve personalized or non-personalized ads
App Interactions — How you use the app (buttons tapped, screens viewed)
Crash Logs — Technical data when the app crashes, to help us fix bugs
Device Information — Device model, OS version, and general location (country/region level)

Third-Party Services (Consumer Apps)

Google AdMob — For displaying advertisements. Google Privacy Policy
Google Play Services — For app distribution and basic analytics
Google Firebase — For app performance data, crash reporting, and analytics

2. GuideOS (Business Platform — app and getguideos.com)

GuideOS is a business-to-business platform used by tour companies to manage guides, schedules, and customer bookings. It is intended for adults (18+) who work for, or book tours with, those companies.

Information We Collect (GuideOS)

Account Information — Email address, display name, and password (stored only as a secure hash) when you register or are invited to a workspace
Booking Information — Guest name, email address, party size, and payment amount when booking a tour
Guide Profile Content — Photos, biographies, and availability schedules that guides choose to add
Precise Location — During an active tour only, guides may share GPS coordinates with their company's dispatch so the operation can verify the tour is on route. Location sharing is opt-in per tour, visible to the guide, and stops when the tour ends
Camera — Used solely to scan guest booking QR codes for check-in; images are processed on-device and are not uploaded or stored
Operational Data — Tour reports (guest counts, tips amounts, incident notes), team messages, and uploaded training files within a company workspace

How GuideOS Data Is Shared

Within your tour company workspace: owners, managers, and dispatchers can see guide schedules, availability, tour reports, and live tour locations (as described above)
Tour booking details (name, party size) are visible to the guides running that tour
We never sell personal data, and we do not use workspace data for advertising

Third-Party Services (GuideOS)

Vercel — Website/application hosting (data processed on servers in the region selected at setup)
Neon (PostgreSQL) — Database hosting of workspace data
Stripe — Payment processing for paid tours. Card details are entered directly on Stripe's checkout and are never stored on our servers. Stripe Privacy Policy
Resend (via Amazon SES) — Delivery of transactional emails (booking confirmations, reminders)
LINE Messaging API — Optional guide notifications. Guides pair their LINE account voluntarily by sending a code to our official account, and can unlink at any time by sending STOP
Vercel Blob — Storage of photos and documents uploaded by workspaces
Cloudflare — Domain/DNS services

Data Retention & Deletion (GuideOS)

Workspace data is retained while the workspace is active. Tour companies can remove guides, bookings, and files at any time; deleting a guide profile removes its linked data. To delete your account or request data removal, contact us at the email below. Payment records are retained as required for accounting and tax purposes.

3. How We Use Data (All Products)

To provide and operate the app's or service's core functionality
To improve performance and fix bugs
To understand how users interact with the product (consumer apps only)
To deliver requested communications (booking confirmations, guide assignments) — GuideOS only, never marketing unless explicitly requested

4. Data Sharing (All Products)

We do not sell personal data. Data is shared only with the third-party services listed above, limited to what is required to operate each product.

5. Your Rights

You can reset your advertising ID or opt out of personalized ads in your device settings (consumer apps)
You can uninstall any app at any time
GuideOS: you may correct your profile data, revoke LINE linking (send STOP to the bot), and request export or deletion of your data by contacting us. We honor rights granted under applicable law, including Japan's Act on the Protection of Personal Information (APPI)

6. Children's Privacy

Our consumer apps are not intended for children under 13, and GuideOS is intended solely for adults (18+) using it for work or tour bookings. We do not knowingly collect data from children.

7. Security

GuideOS traffic is encrypted in transit (HTTPS/TLS), passwords are stored only as salted hashes, and access to workspace data is restricted to authenticated members of that workspace. Platform-owner access to workspaces is access-controlled and logged.

8. Changes to This Policy

We may update this privacy policy from time to time. Changes will be posted on this page with an updated date.

9. How to Delete Your GuideOS Account and Data

You can request deletion of your GuideOS account and associated personal data at any time:

Email jeshiilantz@gmail.com from the email address registered on your account, with the subject "Account deletion".
We will verify ownership and delete your user account, guide profile, availability data, messages, and uploaded files within 30 days.
Data kept after deletion: completed tour reports may be retained in anonymized/aggregated form (tips totals, tour counts) that cannot identify you, and payment records are retained as required for accounting and tax purposes.

Guides can also disconnect their LINE account at any time by sending STOP to the GuideOS LINE official account.

10. Contact Us

If you have any questions about this privacy policy, contact us at jeshiilantz@gmail.com or through the Google Play Store listing.