Effective: November 3, 2026
DirtLog is a ride tracker for dirt bikes, made by Limon Studio. This policy explains what the app records, what stays on your phone, and the few things that can leave it. Contact: limon.spb.studio+dirtlog@gmail.com.
Your rides, places and settings stay on your phone. DirtLog has no account and no server of its own that receives your rides.
Three things can leave the phone, and only if you choose: crash reports (if you say yes when asked; you can change this in Settings), problem reports (only when you send one), and a backup to your own Google Drive (if you turn it on).
You can also share a place with a friend as a link. The link carries the place itself; DirtLog's servers never receive it.
No ads, no analytics, no tracking across apps, and your data is never sold.
While you record a ride, DirtLog stores on your phone:
Location (GPS): your position, speed, heading, altitude and GPS accuracy, about once a second. The app uses your location only while a ride you started is recording, and while a screen that shows where you are is open (the "Start a ride" screen, to show GPS quality and sort your places by distance, and maps that show your position). It never tracks you in the background.
Motion and pressure data: the phone's accelerometer, used to detect jumps, measure air time and landings and rate how rough a ride was (the H-factor), and its barometer, if it has one, used to measure climbing. Rides recorded by earlier versions of the app may also hold readings from the phone's gyroscope, compass and rotation sensors.
Phone state: battery temperature and level, charging, Android's thermal status, battery saver, and whether Android's battery settings limit the app — to show how the phone coped with the ride.
It also stores what you create: places and their gates, spots, ride names and settings.
All of this stays in the app's storage on your phone. You can delete rides (or just their sensor data) in the app, and uninstalling the app deletes everything it stored.
Maps. Maps are shown with Google Maps. To draw a map, your phone downloads map images for the area on screen from Google, so Google can tell which area is being viewed. Google's privacy policy applies: https://policies.google.com/privacy.
Location services. DirtLog gets your location from Android and Google Play services, which may use Wi-Fi and mobile networks to improve accuracy, as set in your phone's location settings.
Crash reports (optional). On first start DirtLog asks whether to send crash reports; you can change the answer any time in Settings → Crash reports. If you say yes and the app crashes or freezes, a report goes to Firebase Crashlytics (a Google service). It contains:
what went wrong (the error and where in the app's code it happened);
the app version, the phone model and the Android version;
an anonymous installation ID, random and made by the app, not tied to your name, email or phone number;
whether a ride was recording at the time, and the app's own number for that ride;
the app's recent log lines. The log never contains your location.
If DirtLog can't get a GPS lock or can't show a map for a while, it may send a short note about it the same way (never your location).
Crash reports are used only to find and fix bugs. Google keeps Crashlytics data for 90 days. If you say no, nothing is sent.
Problem reports (only when you send one). Settings → Report a problem (or a ride's menu) lets you send a report. It contains:
what you write;
the rides you tick. A ride is sent whole, including its GPS track — where you rode. The screen tells you this before you send;
the app's log and crash files;
the app version, the phone model, the anonymous installation ID and the phone state listed above;
your email address, if you give one — only so we can reply;
photos and files you choose to add, sent as they are;
the phone settings that affect DirtLog (location permission and whether Location is on, battery settings, Google Play services, network type, free storage, screen size).
It's uploaded to Firebase Cloud Storage (a Google service), where only the developer can read it. Reports are used only to investigate the problem you reported, and are deleted within 90 days. You can also share a report yourself instead, through any app you choose (such as email), in which case that app's terms apply.
Google Drive backup (optional, off until you turn it on). If you turn on Google Drive backup (Settings → Google Drive backup), your rides — including their GPS tracks — your places, spots and settings are copied to a "DirtLog Backups" folder in your own Google Drive, using the Google account you choose. DirtLog asks Google for access only to the files it creates itself, not the rest of your Drive. Backups run after rides and once a day on Wi-Fi, or when you tap Back up now; Restore reads them back onto a phone. A ride you delete on the phone stays among the backup's deleted rides, so it can still be restored, until you empty them. Each phone's backup is named after the phone (its name in Android's settings), so you can tell backups apart, and another phone of yours can continue it. The developer never receives these files: they stay in your Google account, under Google's privacy policy (https://policies.google.com/privacy). Turning the backup off stops new backups; the files stay in your Drive until you delete them (delete the "DirtLog Backups" folder, and remove DirtLog's access in your Google Account → Security → Third-party apps).
Files you save or share. You can save a ride or the whole database as a file (and load such files), export a ride's track as a GPX file, or make an image of a ride, a jump or its H-factor (a share card). Where a file or image goes is up to you: the app hands it to the place or app you pick, or, with Save, puts the image in your phone's gallery (Pictures/DirtLog), where your phone's own photo backup may copy it like any other picture. An image can show the ride's path unless you turn "Show the path" off.
Making a video (a ride's Make a video…). You pick a video with Android's own picker, and DirtLog reads only that video: its picture, its sound and its recording time, to line it up with the ride. The new video is made on your phone, in the app's own storage, and nothing is uploaded. Share hands it to the app you pick, and Save to gallery puts it in your phone's gallery (Movies/DirtLog), where your phone's own backup may copy it like any other video.
Sharing a place (only when you share one). You can share a place as a link or a QR code (a place's Share button). The link holds the place: its name, where it is, its gates or the track it learned (Smart Track), and its lap timer and GPS settings, not your rides. Where the link goes is up to you: the app hands it to the app you pick (messages, email, a chat app), or shows the code for someone to scan. DirtLog's servers never receive the place. Anyone who gets the link can see where the place is and can pass the link on, so share a place on private land only with people you'd show it to.
The DirtLog website. A shared link points to DirtLog's website, https://dirtlog.web.app. On a phone with DirtLog the link opens the app directly. Otherwise it opens a page there, which reads the place in your browser to show its name and offers DirtLog on Google Play; the place itself is in the part of the link after "#", which browsers never send to a website, so it doesn't reach the site. The website is hosted by Firebase Hosting (a Google service), which, like any web host, briefly keeps standard request logs such as IP addresses. The website uses no cookies, analytics or tracking.
Android backup. If Android backup is turned on for your phone, Android backs up DirtLog's places (with their gates and learned tracks), spots and settings to your own Google account, as it does for other apps; your rides aren't included. When you move to a new phone with Android's phone-to-phone transfer, the whole database, rides included, can be copied across. That's controlled by your phone's settings, not by DirtLog. The anonymous installation ID isn't included: a restored phone gets a new one.
No DirtLog account. (Google Drive backup, if you turn it on, uses your Google account to reach your own Drive.)
No advertising, and no advertising IDs.
No analytics or usage tracking.
No selling or sharing of your data for marketing.
No background location: your location is used only while you're recording a ride or looking at a screen that shows where you are.
DirtLog isn't directed at children under 13, and it doesn't knowingly collect personal information from them.
On your phone: delete rides in the app, or uninstall the app.
Google Drive backup: delete the "DirtLog Backups" folder in your Google Drive (and remove DirtLog's access in your Google Account).
Crash reports and problem reports: they're deleted automatically after 90 days. To have them deleted sooner, email limon.spb.studio+dirtlog@gmail.com with the report ID (for a problem report) or your installation ID (Settings → About). We'll delete them.
If this policy changes, the new version will be posted here with a new effective date. If a change affects what leaves your phone, the app will tell you before it applies.
Limon Studio — limon.spb.studio+dirtlog@gmail.com