Number Chain Terms of Service

Effective date: November 11, 2026

The Korean version of these terms is the original. If the two versions differ, the Korean version prevails, except where the law of your country requires otherwise.

1. Purpose

These terms set out the conditions for using Number Chain (the "Game") provided by DAMOA Studio ("we"), and the rights and obligations of us and you.

2. The service

• The Game is a puzzle in which you draw lines between circles to complete networks. It is free to play without an account.
• If you choose to watch a rewarded ad to the end, you can receive an item (Reset lines, Add circle, Remove circle) or a revive. No reward is given if the ad does not report a reward or is closed early.
• If you sign in to Google Play Games, you can use leaderboards and achievements (optional).
• Ads are provided by Google AdMob. Where ad consent is required (for example in Europe), we ask for consent through Google's User Messaging Platform (UMP), and you can change your choice at any time in the Game's Settings → Privacy choices.
• To improve the Game, we collect usage statistics that do not identify you through Google Firebase Analytics. Information processed for ads and statistics is described in the Privacy Policy.
• The Game is intended for users aged 13 and older.
• Rules, item counts and rewards are described in the Game and may change to improve it.

3. Remove Ads purchase

• Remove Ads is a one-time purchase (not a subscription) made through Google Play Billing. The price is the amount shown on the purchase screen (₩4,900 in Korea, tax included; local prices vary).
• After purchase, no ads are shown, and each new game starts with 2 of each item and 1 revive.
• The purchase is tied to your Google Play account. After reinstalling or changing devices, use Restore purchase in the Game's settings with the same Google account.

4. Refunds

• Refunds follow the Google Play refund policy. Within 48 hours of purchase you can request a refund directly on Google Play; after that, contact us at damoa7804@gmail.com.
• For users in Korea: if a minor made the purchase without a legal guardian's consent, the minor or the guardian may cancel it (Article 5 of the Korean Civil Act).
• For users in Korea: you may withdraw within 7 days of payment if you have not used the benefit. Withdrawal may be limited for digital content whose benefit is provided immediately, as permitted by Article 17(2) of the Act on Consumer Protection in Electronic Commerce. We will tell you this before purchase.
• If you cannot use the benefit because of our fault, we will refund you or provide the benefit again.
• Nothing in these terms limits any rights you have under the consumer laws of your country.

5. Your obligations

You must not:

• Manipulate, bypass or reverse-engineer the Game, purchase checks or ad checks
• Obtain leaderboard scores or achievements by unfair means
• Use the Game's art, sound or text commercially without our permission

If you do, we may ask Google to remove the records concerned or restrict your use.

6. Records and data

• Game records and settings are stored only on your device. They are lost if you clear app data, uninstall the app or change devices, and we cannot recover them.
• Leaderboard scores and achievements are stored by Google Play Games. See the Privacy Policy.

7. Changes to or end of the service

We may change or end the Game for operational or technical reasons, and will announce important changes unfavorable to you in advance in the Game. We will make reasonable efforts so that Remove Ads buyers can keep using the benefit in the installed Game.

8. Limitation of liability

To the extent permitted by law, we are not liable for damages caused by events beyond our control, such as natural disasters or Google service outages, unless caused by our intent or gross negligence.

9. Changes to these terms

We will announce changes in the Game and on this page 7 days before they take effect (30 days for changes unfavorable to you). If you do not agree, you may stop using the Game.

10. Governing law

These terms are governed by the laws of the Republic of Korea. Disputes will be settled by the competent court under the Korean Civil Procedure Act, without prejudice to mandatory consumer protections of your country.

Business information

DAMOA STUDIO (다모아) · Representative Kim Kyehyun (김계현)

Business registration no. 879-17-02756 · Mail-order business report no. 2026-인천부평-1899

Address 인천광역시 부평구 부개로 58, 112동 901호(부개동, 푸른마을한신아파트), Republic of Korea

Phone +82-10-2601-3952 · Email damoa7804@gmail.com