Terms of Service

LEAN LINE

Effective date: __ __, 2026

Version: v1.0 (English edition)

Please read these Terms carefully. By creating an account you agree to them.

The Service is available only to individuals aged 18 or over.

The Service is a record-keeping and reminder tool. It is not a medical device and does not provide medical advice, diagnosis, or treatment.

1. Who We Are

"We", "us", and "our" refer to H Solution Factory Co., Ltd. "You" refers to the person using the Service.

2. Definitions

3. Nature of the Service

1. The Service records the treatment you have been prescribed and reminds you of your schedule.
2. The Service is not a medical device. It does not provide medical advice, diagnosis, or treatment.
3. The Service does not decide or suggest a dose or a dosing schedule. It records and reminds you of what you enter.
4. Always consult the clinic that prescribed your medication about diagnosis, prescriptions, dose adjustments, and side effects.
5. We are not responsible for the consequences of changing or stopping your medication on the basis of information in the Service.

4. Eligibility and Account

1. You must be 18 or over to use the Service.
2. You confirm your age when you sign up. If we learn you are under 18, we will close your account and delete your data.
3. You may not transfer or lend your account to anyone else.
4. You are responsible for keeping your credentials secure. Tell us immediately at support@leanline.app if you believe your account has been compromised.
5. We may refuse or terminate an account where you have given false information, previously breached these Terms, or where we cannot provide the Service for technical reasons.

5. What the Service Includes

Free

• Recording and viewing injections, weight, body composition, and side effects
• Injection reminders
• Four-week report
• Journey Sharing — posting and reading
• Clinic Bridge access support
• Injection guides and FAQ

Premium

Everything above, plus:

• AI in-depth consultation
• Future weight projection graph
• Translated community board

6. AI Guidance

1. AI guidance provides general information. It does not diagnose, prescribe, or decide a dose.
2. AI responses may be incomplete or inaccurate. Treat them as reference material only.
3. We take technical measures to prevent the AI from suggesting dose changes or treatment, but we cannot entirely rule out an unexpected response.
4. We may limit how often AI guidance can be used, so that the Service remains stable for everyone. Changes to those limits are governed by Section 8.

7. Journey Sharing

1. You may share your weight progress with other users.
2. A post shows your nickname, elapsed weeks, weight change, and a short message. Medication names, doses, and side effect information are never shown.
3. Weight figures are calculated on our servers from your own records. You cannot alter them.
4. You must not post:
   1. Offers to sell, buy, transfer, or arrange the supply of prescription medicines
   2. Contact details, external links, or anything else inviting private contact
   3. Encouragement to use prescription medicine without a prescription
   4. False statements or exaggerated claims about results
   5. Material that defames or harasses another person
   6. Advertising or promotional material
   7. Anything unlawful or infringing another person's rights
5. We screen posts at the point of publication and review reports afterwards.
6. You may report a post. We review reports within 24 hours.
7. You may block another user's posts.

8. Changes to the Service

1. We may change the features, content, and usage limits of the Service.
2. Where a change is to your disadvantage — removing a feature or lowering a usage limit — we will give at least 30 days' notice explaining the reason.
3. If you do not accept such a change you may terminate. If you have paid for Premium, you may claim a refund for the unused period.

9. Clinic Bridge

1. You may generate a single-use code so that a healthcare provider can view your records.
2. The code expires after the period you choose and cannot be used again.
3. You can see who accessed your records and when, inside the app.
4. We never let any third party view your records without your explicit request.
5. Any diagnosis or prescription based on what a provider sees is that provider's responsibility.

10. Premium Subscription

1. Premium is sold through the App Store and Google Play as an in-app purchase.
2. The price, billing period, and free trial terms are those shown on the store's purchase screen.
3. We do not collect or hold your payment card details.

11. Free Trial

1. We may offer new users a 7-day free trial.
2. During the trial you have full access to Premium.
3. When the trial ends, a paid subscription starts automatically and you will be charged.
4. You must cancel at least 24 hours before the trial ends to avoid being charged. Cancel in your App Store or Google Play settings.
5. Only one free trial is available per account.
6. If you cancel during the trial you keep access until the trial period ends.

12. Automatic Renewal and Cancellation

1. Your subscription renews automatically each billing period unless you cancel.
2. Cancel in your App Store or Google Play settings at least 24 hours before the next billing date.
3. If you cancel, you keep access until the end of the period you have already paid for.
4. If a payment fails, the store will retry according to its policy. We may keep the Service available during that period.

13. Cancellation and Refunds

13.1 Your statutory rights

Nothing in these Terms limits any right you have under the consumer law of the country where you live.

United Kingdom. Under the Consumer Contracts Regulations 2013 you normally have 14 days to cancel. That right does not apply once you have expressly consented to immediate access to digital content and acknowledged that you lose the right to cancel. We ask for that acknowledgement at purchase. The free trial lets you assess the Service before any charge.

Australia. Our Service comes with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure.

Canada, United States, and elsewhere. Consumer protection laws in your province or state may give you additional rights.

Republic of Korea. Korean-language Terms apply and prevail for Korean residents.

13.2 Annual subscriptions

If you cancel an annual subscription part way through, you may claim a refund for the unused period. We calculate this by deducting the value of the period already used, at the standard rate, from the amount you paid.

13.3 How to get a refund

1. Because payment is taken by the App Store or Google Play, please request a refund through that store first.
2. If the store declines and you are entitled to a refund under the law of your country, we will refund you directly. Contact support@leanline.app.
3. We refund within the period required by applicable law.

14. Price Changes

1. We may change our prices.
2. Where we increase a price we will give at least 30 days' notice. Existing subscribers are charged the new price from their next renewal.
3. If you do not accept a new price you may cancel.
4. We may run promotional pricing. Where we do, we will state how long it lasts and what the price will be afterwards.

15. Things You Must Not Do

You must not:

1. Offer to sell, buy, transfer, or arrange the supply of prescription medicines
2. Impersonate another person or use their account
3. Enter or post false information
4. Defame, threaten, or harass another user
5. Access the Service by automated means, or circumvent technical protections
6. Reverse-engineer, copy, or redistribute the Service
7. Place an unreasonable load on our servers
8. Use the Service commercially without our permission
9. Do anything unlawful or that infringes another person's rights

16. Suspension and Termination

1. If you breach Section 15 we may act as follows.

1. We will tell you the reason and duration. Where the matter is urgent we will tell you immediately afterwards.
2. You may appeal to support@leanline.app. We reply within 7 days.
3. We do not refund the remaining subscription period where an account is permanently suspended, unless the suspension turns out to have been unjustified.

17. Interruption of the Service

We may suspend the Service temporarily where:

1. Maintenance or repair is required
2. Power failure, equipment failure, or exceptional demand prevents normal operation
3. Events beyond our control occur
4. A third-party service we rely on fails

We give notice of planned maintenance in advance, and of urgent interruptions as soon as we can.

18. Closing the Service

1. We may close the Service.
2. We will give at least 30 days' notice in the app and on our website.
3. When we close the Service:
   1. We refund subscribers pro rata for the unused period.
   2. We keep the data export feature available for at least 30 days so you can download your records.
   3. After the notice period we delete all user data, except where the law requires us to keep it.

19. Limits on Our Responsibility

1. Nothing in these Terms excludes our liability for death or personal injury caused by our negligence, for fraud, or for anything else that cannot be excluded by law.

1. Subject to Section 19.1, we are not responsible for loss arising from:
   1. Events beyond our reasonable control
   2. Your own acts or omissions
   3. Errors or omissions in the information you enter
   4. Your changing or stopping medication on the basis of information in the Service
   5. Disputes between users, or between you and a third party
   6. Failure of a third-party service we rely on

1. We do not warrant the accuracy of anything posted by another user.

1. Subject to Section 19.1, our total liability is limited to the amount you paid us in the twelve months before the event giving rise to the claim.

1. Consumer rights. If you are a consumer, this Section does not affect rights you have under the law of your country that cannot be limited by contract.

20. Intellectual Property

1. The software, design, trade marks, and content of the Service belong to us.
2. The records you enter belong to you.
3. You grant us a licence to use content you post to Journey Sharing for operating and promoting the Service. We will not include anything that identifies you.
4. That licence ends when you delete the post or close your account.

21. Notices

1. We contact you through in-app notices, push notifications, or email.
2. Notices to all users may be given in the app and on our website.

22. Closing Your Account

1. Close your account at any time in the app under *My Info*.
2. Your records are deleted as described in our Privacy Policy. Deleted records cannot be recovered.
3. Closing your account does not cancel your subscription. Cancel separately in the App Store or Google Play.

23. Changes to These Terms

1. We may change these Terms.
2. We give at least 7 days' notice before a change takes effect. Where a change is to your disadvantage we give at least 30 days' notice and seek your agreement.
3. If you do not agree to a change you may close your account.

24. Governing Law and Disputes

1. These Terms are governed by the law of the Republic of Korea.

1. If you are a consumer, you also have the protection of the mandatory consumer law of the country where you live, and you may bring proceedings in the courts of that country.

1. We try to resolve disputes directly. Please contact support@leanline.app first.

1. United Kingdom. You may use an approved alternative dispute resolution provider, or the Citizens Advice consumer service.

1. Australia. You may contact the Australian Competition and Consumer Commission or your state fair trading office.

1. Canada and United States. You may contact your provincial or state consumer protection office.

25. Contact

support@leanline.app

H Solution Factory Co., Ltd. 1802, 5 Hwamyeong-daero, Buk-gu, Busan, Republic of Korea

These Terms take effect on __ __, 2026.