Effective Date: January 06, 2026
1. Acceptance of Terms
By accessing or using the Gachi app (“App”), you agree to be bound by these Terms of Service (“Terms”). If you do not agree to these Terms, you may not use the App.
2. Eligibility
You must be at least 16 years old to use the App. By using the App, you affirm that you meet this requirement. If you are under 16, you may only use the App with the consent and supervision of a parent or legal guardian. We do not knowingly collect personal data from users under 16 without appropriate consent.
3. Use of the Service
Gachi is a mobile application designed to help couples connect, communicate, and share experiences through features like polls, stickers, and diaries. You are granted a limited, non-transferable, non-exclusive, revocable license to use the App for personal, non-commercial purposes.
You agree not to:
Violate any laws or regulations;
Use the App for any harmful, abusive, or inappropriate conduct;
Attempt to interfere with or compromise the App’s integrity or security;
Reproduce, copy, sell, or exploit the App or any portion of its content without written permission.
Ownership and License
The App and its content are licensed, not sold, to you. Luff Studio retains all rights, title, and interest in and to the App and its content, except for the limited license granted to you under these Terms.
You may not copy (except as permitted by these Terms), decompile, reverse engineer, disassemble, attempt to derive the source code of, modify, or create derivative works of the App, any updates, or any part thereof (except where such restrictions are prohibited by law). You may not transfer, redistribute, sublicense, or make the App available over a network where it could be used by multiple devices at the same time.
4. User Content
Users can create and share content such as polls and diary entries. You cannot create your own stickers but may use the ones provided by the App, some of which are free and others available with a Pro subscription.
You retain ownership of any content you create. However, you grant Luff Studio a license to use/store content as necessary to provide the service.
You are solely responsible for your content and must not post or share anything unlawful, offensive, or infringing.
4A. End-to-End Encryption and Access to Content
Gachi uses end-to-end encryption for certain shared content between connected users. This means that shared content is encrypted on users’ devices and can only be decrypted by authorized, verified devices connected to the same couple.
The following types of content are end-to-end encrypted when shared between connected users:
Diary text entries
Diary images
Anniversary (D-Day) titles
Poll titles, subtitles, and poll item text
Encryption keys used to protect this content are generated and stored on users’ devices. Luff Studio does not have access to these encryption keys and cannot view, access, or decrypt end-to-end encrypted content, even for research, moderation, or customer support purposes.
As a result:
We cannot retrieve, recover, or restore encrypted content if it is lost.
We cannot access encrypted content in response to legal requests, except to the extent technically possible (e.g., account metadata).
Device Verification and Backup Responsibility
Access to end-to-end encrypted content depends on verified devices and backup credentials.
Users are solely responsible for:
Maintaining access to their verified devices
Safely storing any backup or recovery codes provided by the App
Preventing unauthorized access to their devices or backup credentials
If all verified devices and backup credentials are lost, encrypted content cannot be recovered.
If a backup key is lost, exposed, or believed to be compromised, users are responsible for rotating or regenerating backup keys through the App. Any previously issued backup keys may become invalid once replaced.
Luff Studio is not responsible for loss of access resulting from device loss, reinstallation, key compromise, or user error.
5. Account Termination and Data Retention
You may delete your account at any time. Upon deletion, your account data is permanently removed. If couples disconnect, content shared between them (polls, diaries, anniversary (D-Day) information, stickers) is automatically deleted after 30 days.
We reserve the right to suspend or terminate accounts that violate these Terms or applicable laws.
Inactive Accounts
In addition to termination for violations, we may suspend, archive, or delete accounts that remain inactive for an extended period of time (currently defined as 24 months). We will provide notice before permanent deletion, and you may reactivate your account by logging in before that date.
6. In-App Purchases
Gachi offers a Duo Access feature where Pro subscription benefits are shared between two connected users. If one user subscribes and is linked to a partner via the app, both users receive access to Pro features. Pro features may include premium content, enhanced functionality, and other benefits, which are subject to change over time.
Only one active subscription is required for Duo Access. The subscribing user is responsible for the recurring subscription fees. Pro access remains available to both partners while at least one of them has an active subscription.
We are not responsible for duplicate subscriptions, and users are advised to coordinate with their partner before subscribing.
All subscriptions and payments for Gachi are processed through the Apple App Store or Google Play. We do not have access to your payment information and cannot issue or manage refunds on your behalf. For any changes, cancellations, or refund requests, please use your device’s app store subscription settings
or contact Apple or Google support directly.
7. Intellectual Property
All intellectual property rights in the App and its content (excluding user-generated content) are owned by Luff Studio. You may not use our branding, design, or content without permission. You are prohibited from modifying, adapting, translating, or creating derivative works based on the App or any part thereof without our prior written consent.
8. Privacy
Your use of the App is also governed by our Privacy Policy. Please review it to understand how we collect and use your data.
For users located in the European Economic Area (EEA), additional rights may apply under GDPR, as described in our Privacy Policy.
9. Service Modifications
We reserve the right to modify, suspend, or discontinue any part of the App at any time without prior notice.
10. Disclaimers and Limitation of Liability
The App and any related services are provided “as is” and “as available,” without warranties of any kind, either express or implied. To the fullest extent permitted by law, Luff Studio disclaims all warranties, express or implied, including but not limited to implied warranties of merchantability, fitness for a particular purpose, and non-infringement.
While we implement strong cryptographic protections, including end-to-end encryption for certain user-generated content, we do not guarantee that the App will be uninterrupted or error-free. No system is completely secure, and no method of transmission over the internet or electronic storage is 100% secure.
Users are advised to exercise discretion and caution when uploading or sharing sensitive or private content. Luff Studio does not guarantee protection against all potential risks, including device compromise, user negligence, loss of encryption keys or backup credentials, or vulnerabilities beyond our reasonable control.
To the maximum extent permitted by applicable law, Luff Studio shall not be liable for any indirect, incidental, special, consequential, or punitive damages, or for any loss of profits, revenues, data, use, goodwill, or other intangible losses, resulting from (a) your use or inability to use the App; (b) any unauthorized access to or use of our servers and/or any personal information stored therein.
To the maximum extent permitted by applicable law, Luff Studio’s total liability for any claims arising out of or relating to your use of the App shall not exceed the greater of (a) fifty U.S. dollars (USD $50.00) or (b) the total amount paid by you to Luff Studio for the App in the twelve (12) months preceding the event giving rise to the claim.
11. Governing Law
These Terms are governed by and construed in accordance with the laws of the Republic of Korea. Any disputes arising from or relating to these Terms shall be subject to the exclusive jurisdiction of the competent courts located in Seoul, Republic of Korea.
12. Export Compliance
You may not use, export, or re-export the App except as authorized by the laws of the jurisdiction in which the App was obtained and applicable United States law. In particular, but without limitation, the App may not be exported or re-exported (a) into any U.S.-embargoed countries or (b) to anyone on the U.S. Treasury Department’s Specially Designated Nationals List or U.S. Department of Commerce Denied Persons List. By using the App, you represent that you are not located in any such country or on any such list.
13. Changes to Terms
We may revise these Terms at any time. Continued use of the App after changes become effective constitutes acceptance of the new Terms.
14. Contact Us
For questions or support regarding these Terms: support@gachiapp.com