COLOR TRIP

Privacy Policy

Effective: 17 September 2026

Color Trip (the “app”) is a travel map colouring app made by DGSTUDIO (the “developer”). You colour in the places you have visited, leave notes, and share a map with friends. This policy explains what information the app handles and how.

There is no sign-up. We never ask for your name, email address or phone number.
Your photos are never uploaded. They are analysed and stored only on your phone.
The app does not request location (GPS) permission. It only reads the capture location already stored inside your photos.
The regions you colour and the notes you write are stored on the developer’s server (Google Firebase) so that maps can be shared.

1. An anonymous account, created without sign-up

The first time you open the app, Google Firebase Authentication creates an anonymous account. It is just a random string and is not linked to your name, email, phone number or any social account.
It is used only to tell which maps are yours and who wrote which note.
A default nickname (for example “Traveler A1B2”) is assigned automatically and can be changed at any time in the app. You do not need to use your real name.

2. Information stored on the server

To support shared maps and syncing between devices, the following is stored in Google Firebase (Cloud Firestore, Seoul region).

What is stored	Example	Why it is needed
Anonymous account id	A random string	To identify your maps and your entries
Nickname	Traveler A1B2, or a name you choose	To show who coloured what to the people sharing the map
Map details	Map name, invite code, member list	To share a map with others
Colouring records	Region code, colour, timestamp, who coloured it	To redraw the map and announce changes
Notes	Text you type (up to 1,000 characters), author, timestamp	To keep your records and show them to the group
Reports & blocks	Anonymous ids and nicknames of the reporter and the reported person, report reason, the reported note’s text, when you agreed to the community rules, your block list	To review and remove objectionable content, and to hide notes from people you blocked

Beyond the above, the developer does not collect or keep advertising identifiers, device information, location or usage logs.
Please avoid writing personal or sensitive information in notes — everyone sharing the map can read them.

3. Photos and capture location — they never leave your phone

The app asks for photo library access so it can read the capture location (EXIF / PhotoKit) stored in your photos and suggest the regions you have visited.
All of this analysis happens on your phone. Neither the photo files, nor the coordinates, nor the results are ever sent to a server.
The results (photo identifier, capture time, coordinates, matched region) are stored only in a database on your phone and are removed when you delete the app.
Photos you attach to a record are copied into the app’s private folder. Those copies also stay on your phone only.
The app does not request location (GPS) permission. It never tracks your live location; it only reads what is already written inside a photo.
You can decline photo access and still use colouring and notes. If you choose “Selected Photos”, only the photos you picked are analysed.

4. When you share a map

Anyone you give the invite code to can join the map and will see its nicknames, colouring records and notes.
Share the invite code only with people you trust. The map owner can remove a member at any time and block them from re-joining.
Photos stored on your phone are not shared. They stay on each person’s own device.
Before you first write a note or nickname, or join a map, you must agree to the community rules. Objectionable content such as abuse, sexual content, spam or other people’s personal information is not allowed.
You can report or block a note or a person with the ⋯ button next to a note or by tapping a member’s name. Reports are reviewed within 24 hours; objectionable content is removed and users who break the rules are restricted. Only you can see your block list.

5. Third-party services

The app uses the services below. Each provider handles information under its own privacy policy.

Service	When it is used	Information it may process
Google Firebase auth & database	While you use the app	Anonymous account id, the information in the table above, and the IP address used to connect
Google AdMob advertising	When an ad is shown as you open or return to the app	Advertising ID (Android Advertising ID, or IDFA on iPhone/iPad if you allow tracking), IP address, device and app information, ad views and clicks

Google uses this information to serve ads, measure ad performance and prevent abuse.
In regions that require consent, such as the EEA and the UK, you are asked for consent before ads are shown.
On iPhone and iPad you are asked whether to allow tracking before the advertising identifier (IDFA) is used. If you decline, you will see non-personalised ads; you can change this at any time in Settings → Privacy & Security → Tracking.
On Android you can reset or delete your advertising ID in Settings → Google → Ads.
Google Privacy Policy: policies.google.com/privacy
Firebase data processing: firebase.google.com/support/privacy

6. Retention and deletion

Information on the server is kept until you delete it or ask us to delete it.
Using “Delete my data” in the app removes your information from the server immediately (see section 7).
Reports are used only to handle the report and are deleted once it has been handled.
Information on your phone (the photo location index and attached photo copies) is removed when you delete the app.

7. Your rights and how to delete your data

Delete everything at once: tap the people button at the top right → “내 데이터 삭제” (Delete my data) at the bottom. This deletes the maps you created (colouring records, notes, invite code, members), your notes on other maps, your nickname, your block list, photo records on this device and your anonymous account.
Individual notes and regions: ⋯ button next to a note → delete; tap a region → clear its colour.
On-device data (Android): uninstall the app, or Settings → Apps → Color Trip → Storage → Clear data.
On-device data (iPhone/iPad): deleting the app removes it (Settings → General → iPhone Storage → Color Trip).
If you have already removed the app: email us at the address below. Because the account is anonymous, please tell us the nickname you used and the names of the maps you joined.
Advertising ID: Android — Settings → Google → Ads; iPhone/iPad — Settings → Privacy & Security → Tracking.

8. Keeping information safe

All communication with the server is encrypted with HTTPS.
Database access rules ensure that only members of a map can read or write that map’s records.
That said, no method of transmission over the internet can be guaranteed to be completely secure.

9. Age requirement

This app is intended for users aged 18 and over. The developer does not knowingly collect personal information from anyone under 18 and will delete any such information promptly if it comes to light.

10. Changes to this policy

If this policy changes, the updated version and its effective date will be posted on this page.

11. Contact

Developer: DGSTUDIO
Email: geunsoo7@gmail.com