LineWatch Privacy Policy
Last updated 24 August 2026
LineWatch is built so that there is very little about you to collect. There
is no account, no sign-up, and no name, email address or phone number attached
to anything you do in the app.
What we collect
- A random device identifier. Generated on your device the
first time you open the app. It is not your Apple ID, your advertising
identifier, or anything that identifies you personally. It exists so the
server can rate-limit reports and know which reminders belong to which
installation. Deleting the app discards it.
- Crossing durations you contribute. If you turn on
automatic timing, the app measures how many minutes your crossing took
and sends that number, the crossing, and the lane. It does not send your
route, your coordinates, or where you started.
- Condition reports you tap. Which crossing, which
preset (long wait, moving well, lane closed, accident, extra lane open),
and when.
- Your settings, if you use reminders. The crossings and
lanes you picked, your alert thresholds and departure times, your time
zone offset, your language, and whether your subscription is active — so
reminders can be sent at the right time in the right language.
- A push token, if you allow notifications, so alerts can
be delivered when the app is closed.
What we do not collect
- No location history, no route, no coordinates. Automatic timing runs
entirely on your device using a zone around the crossing; only the
resulting number of minutes is sent.
- No name, email, phone number, or account of any kind.
- No advertising identifiers. There are no ads and no third-party
analytics or tracking SDKs in the app.
- No payment details. Subscriptions are handled entirely by Apple; we
never see your card or your Apple ID.
Where your data goes
- Our server stores the items listed above.
- Apple processes subscription purchases and delivers
push notifications.
- Google (Gemini) generates the short written tips shown
in the app. Only a handful of numbers — current wait times for a
crossing and typical waits for the coming hours — are sent. No device
identifier, no personal data, and nothing about you is included.
- We do not sell your data, and there is nothing personal in it to sell.
Location
The app asks for location only while you are using it, and only for things
you asked it to do: listing the crossings nearest you, ranking crossings by
drive time, and timing a crossing if you enabled that. Your position is used
on the device and is not stored on our server.
Keeping and deleting data
Contributed crossing times and condition reports are kept as aggregate
history so predictions improve; they are not linked to anything identifying
you. Deleting LineWatch removes the device identifier, so the installation
can no longer be associated with any future activity. To have data associated
with your installation removed sooner, email
nguyentrong56@gmail.com.
Children
LineWatch is not directed at children and does not knowingly collect
information from them.
Changes
If this policy changes in a way that affects what is collected, the date at
the top of this page changes with it.
Contact
nguyentrong56@gmail.com