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Terms of Service

Last updated: August 1, 2026

These Terms of Service (“Terms”) are a legal agreement between you and DEVBRIX Co., Ltd, A-1007, 38-1 Jong-ro 5-gil, Jongno-gu, Seoul, Republic of Korea (“Devbrix”, “we”, “us”, “our”), governing your use of the not up tennis journaling app (“the app”, “the service”). By downloading, accessing, or using the app, you agree to these Terms and to our Privacy Policy. If you do not agree, do not use the app.

Contact: dev@devbrix.kr

1. Eligibility

You must be at least 16 years old to use the app (or older where a higher age of digital consent applies in your country). By using the app you represent that you meet these requirements and that the information you provide is accurate.

2. Your account

You can create an account using Sign in with Apple, Sign in with Google, or an email and password. You are responsible for maintaining the confidentiality of your credentials and for all activity under your account. You may delete your account at any time from Settings → Danger zone → Delete account, which permanently deletes your account and data (see Section 9).

3. Subscriptions and payments

The app may offer a paid subscription, not up Premium.

  • Subscriptions are sold and billed through the Apple App Store or Google Play, not directly by Devbrix. Your payment is processed by the app store, and we never receive your payment card details.
  • Subscriptions are auto-renewing: unless you cancel, they renew automatically at the end of each billing period and your payment method is charged the then-current price. You can manage or cancel your subscription, and turn off auto-renewal, in your Apple App Store or Google Play account settings; deleting the app does not cancel a subscription.
  • Restore Purchases is available within the paywall to restore an active subscription to a new device or reinstall.
  • Refunds are handled by Apple or Google under their applicable policies; Devbrix does not directly process refunds for store purchases.
  • Prices, features, and offerings may change; any change to your subscription price will be handled in accordance with the app store’s rules and applicable law.

4. License to use the app

Subject to these Terms, we grant you a limited, personal, non-exclusive, non-transferable, revocable license to use the app for your own personal, non-commercial tennis journaling. You may not copy, modify, reverse-engineer, resell, or create derivative works from the app except as permitted by law.

5. Your content

You retain ownership of the data you create in the app (your sessions, gear, references, profile, photos, and other content — “Your Content”). You grant Devbrix a limited, worldwide, royalty-free license to host, store, process, and display Your Content solely to operate and provide the service to you.

You are solely responsible for Your Content, including any information about other people you enter (such as opponents’, partners’, or coaches’ names, or photos). You represent that you have the necessary rights to include such content and that it does not violate any law or third-party right.

6. Acceptable use

You agree not to:

  • use the app for any unlawful purpose or in violation of these Terms;
  • upload content that is illegal, infringing, or violates another person’s privacy or rights;
  • attempt to gain unauthorized access to, disrupt, or interfere with the app, our servers, or other users’ accounts; or
  • use the app to build a competing product or to scrape or harvest data.

We may suspend or terminate access for violations (see Section 9).

7. Third-party services and links

The app integrates with and links to third-party services (including Apple, Google, RevenueCat, AWS, and links you save such as YouTube videos). Your use of those services is governed by their own terms and privacy policies. We are not responsible for third-party services or content.

8. Disclaimers and limitation of liability

The app is provided “as is” and “as available,” without warranties of any kind, whether express or implied, to the maximum extent permitted by law. The app is a journaling and organization tool and does not provide medical, fitness, health, or professional coaching advice; do not rely on it as such.

To the maximum extent permitted by law, Devbrix will not be liable for any indirect, incidental, special, consequential, or punitive damages, or for any loss of data, arising from your use of the app. Nothing in these Terms excludes or limits liability that cannot be excluded or limited under applicable law, including mandatory consumer-protection rights.

You agree to indemnify and hold Devbrix harmless from claims arising out of Your Content or your misuse of the app, to the extent permitted by law.

9. Termination

You may stop using the app and delete your account at any time. We may suspend or terminate your access if you violate these Terms or if required by law. Upon account deletion, your data is permanently deleted from our systems as described in the Privacy Policy.

10. Changes to the app and to these Terms

We may modify or discontinue features of the app at any time. We may also update these Terms; we will revise the “Last updated” date and, where required, provide additional notice. Your continued use of the app after changes take effect constitutes acceptance of the updated Terms.

11. Governing law and disputes

These Terms are governed by the laws of the Republic of Korea, without regard to its conflict-of-laws rules, and disputes will be subject to the Seoul Central District Court. This does not deprive you of the mandatory consumer-protection rights of the country in which you reside — for example, US state consumer laws or EU consumer protections continue to apply where they are mandatory.

12. Apple- and Google-specific terms

If you obtained the app from the Apple App Store:

  • These Terms are between you and Devbrix only, not Apple, and Apple is not responsible for the app or its content.
  • Your license is limited to use on Apple-branded devices you own or control, as permitted by the App Store Terms of Service.
  • Apple has no obligation to provide maintenance or support for the app.
  • Apple is a third-party beneficiary of these Terms and may enforce them against you.
  • To the maximum extent permitted by law, Apple is not responsible for product warranties, claims, or intellectual-property claims relating to the app.

If you obtained the app from Google Play, your use is also subject to the Google Play Terms of Service, which govern to the extent required.

13. Contact

DEVBRIX Co., Ltd
A-1007, 38-1 Jong-ro 5-gil, Jongno-gu, Seoul, Republic of Korea
Business Registration No. 547-86-02710
Email: dev@devbrix.kr