Effective date: June 25, 2026 · Last updated: June 25, 2026
This Privacy Policy explains how nine20 (the "Developer") handles
information in the mobile application
Trip Document (the "App"). The App works without user
accounts or a backend of its own, and your trips and documents are
stored on your device by default.
1. Data stored on your device
The following data is stored only on your device and is never sent to
or collected by the Developer:
Trip information (trip name, destination, dates and other metadata
you enter) — stored in a local on-device database (SQLite).
Document files you add (PDFs and images) along with their titles,
categories and notes — stored in the App's private storage area.
This data is removed when you delete the App. The Developer does not
access your travel documents or their contents.
2. Device permissions
Photos / Files access: used only to import the
specific photo or file you choose when adding a document. Only the
file you select is copied into the App's storage; no other photos or
files are read.
3. Data collected via third-party services
The App uses Google's Firebase services to improve stability and
understand usage. In doing so, the data below may be transmitted to
and processed by Google.
The contents of your stored travel documents are never
transmitted.
Firebase Crashlytics (crash diagnostics)
Crash diagnostics such as error logs and stack traces, device model
and OS version, app version, and crash identifiers.
Firebase Analytics (usage analytics)
Aggregated, non-identifying app usage events (e.g. screen views and
feature use), basic device and app information, approximate region,
and an app instance identifier (Firebase installation ID).
Diagnosing crashes and errors and improving stability.
Analyzing aggregated, anonymous usage statistics to improve
features.
5. Retention and deletion
On-device data is destroyed when you delete it in the App or uninstall
the App. Diagnostic and analytics data sent to Firebase is retained
for the period defined by Google's policies and then deleted.
6. Data sharing
The Developer does not sell your personal information. Data is shared
with a third party (Google) only for the Firebase processing purposes
described above; it is not otherwise provided to third parties for
advertising.
7. Your rights
On-device data: delete individual items in the App, or uninstall the
App to remove everything.
Analytics/diagnostics: you can manage advertising/analytics
identifiers (e.g. reset them) through your device's OS settings.
For other access or deletion requests, contact us at the address
below.
8. Children's privacy
The App is not directed to children under the age of 14 and does not
knowingly collect children's personal information.
9. Changes to this policy
We may update this policy to reflect legal or service changes. Updates
will be posted on this page.