Privacy Policy

LineBy for iOS & Android · Last updated 13 July 2026

LineBy is an offline-first word puzzle for iPhone, with an Android version on the way. It works without an account and without an internet connection, and it is built to collect as little as possible about you. This policy applies to LineBy however you get it — from the Apple App Store or, once it is available there, from Google Play.

The short version. No account. No analytics. No ads or advertising identifiers. No tracking. The one optional in-app purchase (the Full Library unlock) is handled entirely by Apple or Google Play — we never see your payment details. The app does not request access to your location, camera, microphone, contacts, or photos. Your game progress can sync through your own iCloud (iOS) or your own Google Play Games account (Android) — where only you can read it.

1Who we are

LineBy is developed and published by 0n1 Studios, a sole proprietorship ("we", "us"). For any privacy question, contact [email protected].

2What we don't do

On both iOS and Android, LineBy contains no analytics or crash-reporting SDKs, no advertising, and no third-party trackers. The one optional in-app purchase (the Full Library unlock) is processed entirely by Apple or Google; we never receive your payment information. We do not collect your name, email address, or any contact information, and the app does not ask for permission to use your location, camera, microphone, contacts, or photo library.

3Your game progress

Your progress — your total move count, which puzzles you've solved, the board you're partway through, and the genre you last viewed — is stored on your device. LineBy does not send this progress to any 0n1 server. How it can optionally leave your device depends on your platform, and in both cases it goes only to your own account, which we cannot read:

On iOS, if you are signed in to iCloud, your progress also syncs across your devices using Apple's CloudKit, stored in your private iCloud database and governed by Apple's Privacy Policy.
On Android, if you sign in to Google Play Games, your progress syncs across your devices as a Play Games saved game, tied to your Google account and governed by Google's Privacy Policy. Your device's standard Android backup may also include LineBy's local data if you have backup turned on.

If you are not signed in to iCloud or Play Games, LineBy simply keeps everything locally and works exactly the same offline.

4Creating & sharing puzzles

LineBy lets you build your own puzzles and share them with friends:

Share codes are generated on your device. The code itself contains the puzzle, so a friend can play it by entering the code — no server lookup is required. This works the same on iOS and Android.
When you choose to publish a custom puzzle so others can find it, the puzzle's contents — the phrase, its attribution, difficulty, genre, an optional creator name you type, and the share code — are stored in a public CloudKit database so it can be imported by code. Publishing to this public directory is currently an iOS-only feature; the Android app does not publish puzzles.

Please note: puzzles you publish, including any creator name you add, are public and visible to anyone with the code. The creator name is optional — please don't include personal or sensitive information in puzzles you share.

5What we collect

Data	Status
Name, email, contacts, location, camera, photos	Never collected or requested
Advertising identifiers (IDFA) / tracking	None — no ads, no tracking
Analytics & crash reporting	None
Game progress (moves, solved puzzles, board state)	Stored on your device. iOS: synced via your private iCloud if signed in. Android: synced via your Play Games saved games if signed in
Custom puzzles you publish (iOS only)	Stored in a public CloudKit database so others can play them by code

6Your choices

Stay local (iOS): sign out of iCloud (or disable iCloud Drive for LineBy in iOS Settings) and your progress is kept only on your device.
Stay local (Android): don't sign in to Play Games, and turn off backup in Android Settings → Google → Backup, and your progress is kept only on your device.
Remove local data: deleting the app removes its on-device data, on either platform.
Remove synced data: on iOS, manage or delete LineBy's iCloud data from iOS Settings → your Apple ID → iCloud; on Android, delete your Play Games data from the Play Games app → Settings → Your data, and manage device backups in Android Settings → Google → Backup.

7Children

LineBy is not directed to children under 13 and does not knowingly collect personal information from children. No personal information is required to play.

8Changes to this policy

If our data practices change, we will update this page and revise the date above.

9Contact

Questions about this policy? Email [email protected].