Mark App Design — Privacy Policy
Last updated: 2026-06-20
Contact: markchiuleo@gmail.com
This page describes how Mark App Design collects, uses, retains, and shares personal information for apps officially distributed on Google Play and the Apple App Store. By using any of these apps, you acknowledge this policy. Each app may have additional notes below.
1. Scope
This policy applies only to official releases from Google Play or the Apple App Store. Apps installed from unofficial sources are not covered. Do not install unknown APK or IPA files.
2. Information We May Collect
Depending on each app, we may collect:Account data: identifiers, display name, and email from Google, Apple, or Firebase sign-in (we never collect your password).
User content: e.g. rental listing text, photos, favorites (only where the app supports upload or listing).
Location data: when you grant GPS permission, for maps, nearby search, or listing location. RentHouse and similar apps store coordinates on our servers for listings and map features.
Device and logs: operating system, app version, connectivity status, and error logs for operations.
Advertising data: ad partners may collect device identifiers or interaction data; on iOS, ATT (App Tracking Transparency) may be used to request tracking permission.
3. How We Use InformationProvide sign-in, browsing, listings, maps, and other core features
Maintain security, fix errors, and improve the experience
Respond to support, reports, or lawful requests
We do not sell your personal data.
4. Third-Party Services
Apps may use the following third parties (each has its own privacy policy):Google Privacy Policy (Google Sign-In, Play services, Maps, Firebase, etc.)
https://policies.google.com/privacy
Apple Privacy Policy (Sign in with Apple)
https://www.apple.com/legal/privacy/
AppLovin Privacy Policy (ads in RentHouse and some other apps)
https://www.applovin.com/privacy/
Apps using Google Maps are also subject to Google Terms of Service:
https://policies.google.com/terms
5. App Notes
RentHouseNature: rental listing platform only; no contracts, payments, or transaction guarantees.
Browse without sign-in: list and map tabs work without an account.
Sign-in: Google and Apple; required to publish and manage listings.
Collected: email, user ID, listing text and photos, GPS when authorized, device and error logs.
Third parties: Google Sign-In, Apple Sign-In, Firebase, Google Maps, AppLovin MAX (ads).
User content: landlords publish listings and photos; users can report content in the app or by email.
Delete account: Manage → Delete account removes all published listings and photos, signs out, and clears local data. The server account record is not permanently deleted in this version. For full deletion, email: markchiuleo@gmail.com
Ads: the free version includes ads; iOS may show ATT on first launch.
Warning: visit properties in person; do not wire money before signing a contract.
Map Apps (e.g. Taiwan travel maps, MRT maps)
These apps use Google Maps. Location is used only when authorized for map display. Google may process location data under its own policy; manage it in your Google account.
Camera permission is used only for LED or preview features. Apps with ads may require INTERNET to load ad content.
Other Free Apps
Without sign-in or uploads, collection is usually limited to device and ad-related data. The actual ad SDK depends on each app version (AppLovin).
6. Sign-In and Accounts
Apps that require sign-in (e.g. RentHouse) use Google Sign-In, Apple Sign-In, and Firebase Auth for identification and service delivery only. We do not request or store your Google or Apple password. We do not request unnecessary financial data, contacts, microphone (unless required by that app’s features), or sensitive device data.
7. Retention and Security
Data is retained as long as needed to provide the service. Transmission uses HTTPS/TLS. We use reasonable safeguards, but no internet transmission is fully secure. Servers run on Linux with regular updates; only authorized personnel handle operational data.
8. Advertising
Some free apps include ads to cover hosting, developer program fees, SSL certificates, and maintenance.RentHouse: primarily AppLovin MAX
Other apps: may use AppLovin.
Ad content is served by ad networks; report inappropriate ads via the ad unit’s feedback control. On iOS, manage ATT in Settings → Privacy & Security → Tracking.
9. GDPR and Your Rights
If you are in the EU or where GDPR applies, you may have rights to access, correct, delete, restrict processing, and data portability.Use in-app Delete account or management features first (where available)
For full account deletion or privacy requests: email markchiuleo@gmail.com with app name, registered email, and your request. Full deletion may be irreversible.
10. PermissionsInternet: servers, maps, ads
Location: maps and nearby rentals (when authorized)
Camera / Photos: rental photos (relevant apps only)
Tracking (iOS): ad personalization (optional; the app remains usable if denied)
11. Log Data
When errors occur, we may collect log data (e.g. device model, OS version, app version, time) through our systems or third-party tools for debugging and service improvement only.
12. Children's Privacy
These apps are not directed at children below the legal age. We do not knowingly collect identifiable information from children. Parents may contact us if a minor provided data without consent.
13. Links to Other Sites
The app or this page may link to third-party sites we do not control. Please review their privacy policies.
14. Disclaimer
(1) Use of Mark App Design apps does not imply endorsement or warranty; we correct errors when we become aware of them.
(2) Except as required by law, we are not liable for damages or third-party claims arising from use.
(3) Users are responsible for harm caused by their own intentional or negligent conduct.
15. Policy Changes
We may update this policy; changes will be posted on this page. Material updates may also be announced in the app.
Last updated: 2026-06-20
Contact: markchiuleo@gmail.com
This page describes how Mark App Design collects, uses, retains, and shares personal information for apps officially distributed on Google Play and the Apple App Store. By using any of these apps, you acknowledge this policy. Each app may have additional notes below.
1. Scope
This policy applies only to official releases from Google Play or the Apple App Store. Apps installed from unofficial sources are not covered. Do not install unknown APK or IPA files.
2. Information We May Collect
Depending on each app, we may collect:Account data: identifiers, display name, and email from Google, Apple, or Firebase sign-in (we never collect your password).
User content: e.g. rental listing text, photos, favorites (only where the app supports upload or listing).
Location data: when you grant GPS permission, for maps, nearby search, or listing location. RentHouse and similar apps store coordinates on our servers for listings and map features.
Device and logs: operating system, app version, connectivity status, and error logs for operations.
Advertising data: ad partners may collect device identifiers or interaction data; on iOS, ATT (App Tracking Transparency) may be used to request tracking permission.
3. How We Use InformationProvide sign-in, browsing, listings, maps, and other core features
Maintain security, fix errors, and improve the experience
Respond to support, reports, or lawful requests
We do not sell your personal data.
4. Third-Party Services
Apps may use the following third parties (each has its own privacy policy):Google Privacy Policy (Google Sign-In, Play services, Maps, Firebase, etc.)
https://policies.google.com/privacy
Apple Privacy Policy (Sign in with Apple)
https://www.apple.com/legal/privacy/
AppLovin Privacy Policy (ads in RentHouse and some other apps)
https://www.applovin.com/privacy/
Apps using Google Maps are also subject to Google Terms of Service:
https://policies.google.com/terms
5. App Notes
RentHouseNature: rental listing platform only; no contracts, payments, or transaction guarantees.
Browse without sign-in: list and map tabs work without an account.
Sign-in: Google and Apple; required to publish and manage listings.
Collected: email, user ID, listing text and photos, GPS when authorized, device and error logs.
Third parties: Google Sign-In, Apple Sign-In, Firebase, Google Maps, AppLovin MAX (ads).
User content: landlords publish listings and photos; users can report content in the app or by email.
Delete account: Manage → Delete account removes all published listings and photos, signs out, and clears local data. The server account record is not permanently deleted in this version. For full deletion, email: markchiuleo@gmail.com
Ads: the free version includes ads; iOS may show ATT on first launch.
Warning: visit properties in person; do not wire money before signing a contract.
Map Apps (e.g. Taiwan travel maps, MRT maps)
These apps use Google Maps. Location is used only when authorized for map display. Google may process location data under its own policy; manage it in your Google account.
Camera permission is used only for LED or preview features. Apps with ads may require INTERNET to load ad content.
Other Free Apps
Without sign-in or uploads, collection is usually limited to device and ad-related data. The actual ad SDK depends on each app version (AppLovin).
6. Sign-In and Accounts
Apps that require sign-in (e.g. RentHouse) use Google Sign-In, Apple Sign-In, and Firebase Auth for identification and service delivery only. We do not request or store your Google or Apple password. We do not request unnecessary financial data, contacts, microphone (unless required by that app’s features), or sensitive device data.
7. Retention and Security
Data is retained as long as needed to provide the service. Transmission uses HTTPS/TLS. We use reasonable safeguards, but no internet transmission is fully secure. Servers run on Linux with regular updates; only authorized personnel handle operational data.
8. Advertising
Some free apps include ads to cover hosting, developer program fees, SSL certificates, and maintenance.RentHouse: primarily AppLovin MAX
Other apps: may use AppLovin.
Ad content is served by ad networks; report inappropriate ads via the ad unit’s feedback control. On iOS, manage ATT in Settings → Privacy & Security → Tracking.
9. GDPR and Your Rights
If you are in the EU or where GDPR applies, you may have rights to access, correct, delete, restrict processing, and data portability.Use in-app Delete account or management features first (where available)
For full account deletion or privacy requests: email markchiuleo@gmail.com with app name, registered email, and your request. Full deletion may be irreversible.
10. PermissionsInternet: servers, maps, ads
Location: maps and nearby rentals (when authorized)
Camera / Photos: rental photos (relevant apps only)
Tracking (iOS): ad personalization (optional; the app remains usable if denied)
11. Log Data
When errors occur, we may collect log data (e.g. device model, OS version, app version, time) through our systems or third-party tools for debugging and service improvement only.
12. Children's Privacy
These apps are not directed at children below the legal age. We do not knowingly collect identifiable information from children. Parents may contact us if a minor provided data without consent.
13. Links to Other Sites
The app or this page may link to third-party sites we do not control. Please review their privacy policies.
14. Disclaimer
(1) Use of Mark App Design apps does not imply endorsement or warranty; we correct errors when we become aware of them.
(2) Except as required by law, we are not liable for damages or third-party claims arising from use.
(3) Users are responsible for harm caused by their own intentional or negligent conduct.
15. Policy Changes
We may update this policy; changes will be posted on this page. Material updates may also be announced in the app.