1 to 50

Privacy Policy

Effective: June 20, 2026

YT Lab ("we") operates the mobile game 1 to 50 ("the app"). This policy explains what information the app processes and how.

1. Information we collect

The app has no sign-up or login. It processes only the following:

Data	When	Purpose
Nickname (entered by you)	When you submit a score to the leaderboard	Shown on the leaderboard
Game result (finish time, grid size, date)	On leaderboard submit	Ranking
Random device identifier (generated by the app)	On first submit	One record per device (dedupe)
Country/region (inferred from device language/region)	On submit	Flag display and per-country ranking

A score is sent to our server only when you tap "Submit" yourself. If you don't, nothing is sent and your records stay on your device. We do not collect name, email, phone, precise location, or contacts. The random identifier is not an advertising ID (IDFA/AAID) and is not used to track you across other apps or services. Country/region is a country code (e.g., US) inferred from your device's language/region settings — we do not collect GPS or precise location.

2. Processing & storage

Submitted leaderboard data is stored in Google Firebase (Cloud Firestore, region: Seoul, asia-northeast3).
On-device data (best times, settings, the random identifier) stays on your device.
Retention: for as long as the leaderboard is offered. After uninstalling, a submitted record may remain on the server; you can request deletion at the address below.

3. Third parties

We do not sell personal data. We use the following processor:

Google Firebase (Google LLC) — storing and reading leaderboard data. Firebase privacy

4. Your rights

You may request access to or deletion of your submitted record. Email us with your nickname and we'll handle it.

5. Children

The app is not directed to children under 13/14, and we do not knowingly collect personal information from children.

6. Changes

If this policy changes, we'll post the update and its effective date here. If new features (e.g., ads) are added, we'll update this policy with the data they collect.

7. Contact

Privacy questions / deletion requests: contact@ytlab.site