Terms of Service

Last updated: November 7, 2026

These Terms of Service (the “Terms”) are the agreement between you and Asymmetric Labs FZC, doing business as Taller (“Taller,” “we,” “us” or “our”), for the Taller mobile app on iOS and Android (the “App”), the website tallerapp.xyz (the “Website”) and the services we provide through them (together, the “Services”). They are also the end-user license agreement for the App.

By creating an account, buying a subscription or otherwise using the Services, you agree to these Terms and to our Privacy Policy. If you do not agree, do not use the Services. If you are under 18, a parent or guardian must read and accept these Terms for you.

This version replaces the Terms of December 11, 2024.

1. WHO CAN USE TALLER

You must be at least 13 years old to use the Services. Taller is not for children under 13, and we delete any account we learn belongs to one.
If you are between 13 and 17 (or under the age of majority where you live), you may use the Services only with the permission of a parent or guardian, who accepts these Terms on your behalf and is responsible for your use of the Services, including purchases.
You may not use the Services if the law where you live forbids it, or if we have previously closed your account for breaking these Terms.

2. HEALTH INFORMATION, NOT MEDICAL ADVICE

Taller is a wellness app. It is not a medical device and it does not diagnose, treat or prevent any condition.

Predictions are estimates. Your predicted adult height is a statistical estimate based on the information you enter and on published growth research, described on our methodology page. Real growth can differ, sometimes by several centimeters or inches.
No guaranteed results. Our routines, tips and plans support healthy habits such as sleep, nutrition, exercise and posture. We do not promise any increase in height, and results vary from person to person. Your final height depends mostly on genetics and on your growth plates, which close at the end of puberty.
Check with a doctor. Talk to a doctor before making medical decisions, starting a new exercise program, changing your diet or taking supplements, and whenever you have concerns about your growth or puberty. Stop any exercise that causes pain. In an emergency, call your local emergency number.

3. TALLER COACH (ARTIFICIAL INTELLIGENCE)

Taller Coach is an artificial intelligence. You are talking to a computer program, not to a person or a doctor.
Its answers are generated automatically, based on your question and your Taller profile, using a model provided by OpenAI. They can be wrong, incomplete or out of date. Use your judgment and do not rely on them for medical decisions.
When you use Taller Coach, your messages and your profile are sent to our server and to OpenAI to produce the answer, as explained in our Privacy Policy. Do not share information you do not need to, such as your address or other people’s details.
We may limit the number of messages you can send each day, and you may not use Taller Coach to produce anything unlawful, harmful or abusive, or to try to make it ignore its instructions.

4. YOUR ACCOUNT

You sign in with Apple, with Google or, on Android, with an email address and password. Give accurate information and keep your sign-in method secure: you are responsible for what happens in your account.
You can delete your account at any time in the App, under Settings > Delete my account, or by writing to us. Deleting your account does not cancel a subscription: cancel it in your Apple or Google account (see section 5).

5. SUBSCRIPTIONS, FREE TRIALS AND PURCHASES

What you buy. Taller Premium unlocks Taller’s premium features, such as the full program and Taller Coach, as described in the App. It is offered as an auto-renewing subscription (for example weekly or yearly) and sometimes as a one-time lifetime purchase. The App shows each option’s name, length, price and what it includes before you buy.
Payment. Purchases are made through the Apple App Store or Google Play and charged to your Apple or Google account when you confirm the purchase, in your local currency, with any taxes the store applies. We never see your payment details.
Automatic renewal. A subscription renews automatically for the same length and at the same price unless you turn off auto-renewal at least 24 hours before the end of the current period. Your account is charged for the renewal within the 24 hours before the current period ends.
Free trials. When a free trial is offered, the App shows its length and the price that applies after it. Unless you cancel at least 24 hours before the trial ends, it converts automatically into a paid subscription at that price. Any unused part of a free trial ends when you buy a subscription.
How to cancel. On iPhone: Settings > your name > Subscriptions. On Android: Google Play > Payments & subscriptions > Subscriptions. Cancellation takes effect at the end of the current paid period, and you keep Premium until then. Deleting the App or your account does not cancel a subscription.
Lifetime access. A lifetime purchase is a one-time payment that gives you Premium for as long as we offer the App, without recurring charges.
Refunds. Apple and Google handle payments and refunds under their own policies, and we cannot refund store purchases ourselves. To request a refund, go to reportaproblem.apple.com for Apple, or follow Google Play’s refund process. This does not affect any right to withdraw or to a refund that consumer law gives you.
Price changes. We may change prices. Apple and Google tell you about a price increase for an existing subscription in advance and ask for your agreement where their rules or the law require it.
Restoring purchases. If you reinstall the App or change phones, use “Restore Purchase” in the App with the same Apple or Google account.

6. LICENSE TO USE THE APP

We grant you a personal, limited, non-exclusive, non-transferable and revocable license to install and use the App on devices you own or control, for your own non-commercial use, in line with these Terms and the usage rules of the store you got it from. You may not:

copy, modify, translate or create derivative works of the App, except as the law allows;
decompile, reverse engineer or disassemble the App, or try to extract its source code, except as the law allows;
rent, lend, sell, sublicense or redistribute the App, or make it available on a network where several devices can use it at the same time;
remove or alter any copyright, trademark or other notice in the App;
use the App or its content to build a competing product.

7. COMMUNITY AND YOUR CONTENT

What others see. The App lets you post questions to the Taller community and vote on other people’s posts. Your posts are shown to other users with your name and your height.
Your content stays yours. You keep ownership of what you post. You give us a worldwide, non-exclusive, royalty-free license to host, store, reproduce, adapt (for example to fit the screen or translate it) and display your posts within the Services, for as long as they stay on the Services and as needed to operate and moderate them.
Rules. Do not post anything that is illegal, harassing, hateful, sexual, violent, misleading about health, or that shares personal information about you or anyone else. Do not post advertising, spam or links to other services. Be kind: many users are teenagers.
Moderation. We review posts before they are published, and we may refuse or remove any content and suspend accounts that break these rules. To report a post or a user, write to contact@tallerapp.xyz; we review reports promptly.
Feedback. If you send us ideas or suggestions, we may use them without any obligation to you.

8. ACCEPTABLE USE

When using the Services, you agree not to:

break any law or anyone’s rights, or use the Services for any purpose other than the one they are made for;
give false information, impersonate anyone, or use someone else’s account;
harass, threaten, bully or harm other users, our team or anyone else;
access the Services by automated means (bots, scripts, scrapers), collect other users’ data, or create accounts by automated means;
interfere with, overload or attack the Services, or bypass any security or access restriction, including limits on Premium features or Taller Coach;
upload viruses or other malicious code;
resell, share or transfer your account or your Premium access;
use the Services commercially without our written permission.

9. CREATOR AND AFFILIATE PROGRAMS

If you join our creator or affiliate programs, the specific agreement you accept when joining applies to that program in addition to these Terms. If the two conflict, the program agreement prevails for that program.

10. INTELLECTUAL PROPERTY

The Services and everything in them, including software, design, text, graphics, routines, lessons, videos, the Taller name and logo, belong to us or our licensors and are protected by intellectual property laws. These Terms give you no rights to them other than the license in section 6.

11. THIRD-PARTY SERVICES AND LINKS

The Services rely on, or link to, services run by others, such as Apple, Google, OpenAI, YouTube and the forms of our creator program. Their own terms and privacy policies apply when you use them. We are not responsible for third-party websites, content or services, and a link does not mean we endorse them. You must also comply with any third-party terms that apply when you use the App, such as your mobile carrier’s or your app store’s.

12. PRIVACY

Our Privacy Policy explains what personal information we collect, how we use and share it, and your rights. It is part of these Terms.

13. CHANGES TO THE SERVICES AND TO THESE TERMS

We keep improving Taller, so features may change, be added or be removed. If we remove a substantial Premium feature you paid for, we will try to tell you in advance.

We may update these Terms when the Services, our business or the law change. The date at the top shows the latest version. If a change is significant, we will let you know before it applies, for example with a notice on this page or by email. If you keep using the Services after it applies, you accept the new Terms; if you do not accept them, stop using the Services and cancel your subscription.

14. SUSPENSION AND TERMINATION

You can stop using the Services and delete your account at any time. We may suspend or close your account, or remove content, if you seriously or repeatedly break these Terms, if the law requires it, or to protect other users or the Services. Where reasonable, we will tell you why and give you the chance to respond. If we close your account without a valid reason while you have an active subscription, you can ask us for help getting a refund of the unused period. Sections 2, 3, 10 and 15 to 20 continue to apply after your account ends.

15. DISCLAIMERS

TO THE EXTENT THE LAW ALLOWS, THE SERVICES ARE PROVIDED “AS IS” AND “AS AVAILABLE.” WE DO NOT PROMISE THAT THEY WILL BE UNINTERRUPTED, ERROR-FREE OR SECURE, THAT PREDICTIONS, CONTENT OR AI ANSWERS WILL BE ACCURATE OR COMPLETE, OR THAT YOU WILL REACH ANY PARTICULAR HEIGHT OR RESULT, AND WE DISCLAIM ALL IMPLIED WARRANTIES, INCLUDING OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.

Some countries and states do not allow these exclusions. If you are a consumer, you keep all the rights that the law of your country or state gives you and that cannot be excluded by contract, and nothing in these Terms limits them.

16. LIMITATION OF LIABILITY

TO THE EXTENT THE LAW ALLOWS, WE ARE NOT LIABLE FOR INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL OR PUNITIVE DAMAGES, OR FOR LOSS OF PROFITS, DATA OR GOODWILL, ARISING FROM YOUR USE OF OR INABILITY TO USE THE SERVICES. OUR TOTAL LIABILITY FOR ALL CLAIMS RELATED TO THE SERVICES IS LIMITED TO THE GREATER OF THE AMOUNT YOU PAID FOR THE SERVICES IN THE 12 MONTHS BEFORE THE CLAIM AND 50 US DOLLARS.

These limits do not apply to liability that cannot be limited by law, including for death or personal injury caused by our negligence, for fraud or fraudulent misrepresentation, or for our gross negligence or willful misconduct.

17. GOVERNING LAW AND DISPUTES

If you have a problem with the Services, write to us first at contact@tallerapp.xyz: most issues can be solved quickly, and we will try to resolve yours within 30 days.

These Terms are governed by the laws of the United Arab Emirates, and the courts of the United Arab Emirates have jurisdiction over any dispute about them or the Services. However, if you are a consumer living in the European Union, the United Kingdom, Switzerland or another country whose law gives you that right, you also benefit from the mandatory protections of the law of your country, and you can bring a claim before the courts where you live.

18. ADDITIONAL TERMS FOR THE APPLE APP STORE

If you got the App from the Apple App Store:

Acknowledgement. These Terms are between you and us only, not with Apple Inc. (“Apple”). We, not Apple, are solely responsible for the App and its content.
Scope of license. Your license to use the App is limited to a non-transferable license to use it on Apple-branded products you own or control, as permitted by the Usage Rules in the Apple Media Services Terms and Conditions, except that the App may be accessed by other accounts associated with you through Family Sharing or volume purchasing where available.
Maintenance and support. We are solely responsible for providing any maintenance and support for the App, as described in these Terms or as required by law. Apple has no obligation to provide any maintenance or support for the App.
Warranty. We are solely responsible for any product warranties, whether express or implied by law, to the extent not effectively disclaimed. If the App fails to conform to any applicable warranty, you may notify Apple, and Apple will refund the purchase price of the App to you, if any. To the maximum extent permitted by law, Apple has no other warranty obligation with respect to the App, and any other claims, losses, liabilities, damages, costs or expenses attributable to any failure to conform to any warranty are our sole responsibility.
Product claims. We, not Apple, are responsible for addressing any claims by you or any third party relating to the App or your possession and use of it, including (i) product liability claims; (ii) any claim that the App fails to conform to any applicable legal or regulatory requirement; and (iii) claims arising under consumer protection, privacy or similar legislation.
Intellectual property rights. If a third party claims that the App or your possession and use of it infringes that third party’s intellectual property rights, we, not Apple, are solely responsible for the investigation, defense, settlement and discharge of that claim.
Legal compliance. You represent and warrant that (i) you are not located in a country that is subject to a US Government embargo, or that has been designated by the US Government as a “terrorist supporting” country; and (ii) you are not listed on any US Government list of prohibited or restricted parties.
Developer name and address. Questions, complaints or claims about the App should be sent to Asymmetric Labs FZC, Business Centre, Sharjah Publishing City Free Zone, Sharjah, United Arab Emirates, or contact@tallerapp.xyz.
Third-party terms. You must comply with applicable third-party terms of agreement when using the App.
Third-party beneficiary. Apple and Apple’s subsidiaries are third-party beneficiaries of these Terms, and upon your acceptance of these Terms, Apple will have the right (and will be deemed to have accepted the right) to enforce these Terms against you as a third-party beneficiary.

19. ADDITIONAL TERMS FOR GOOGLE PLAY

If you got the App from Google Play, these Terms are between you and us, not Google, and your use of the App is also subject to the Google Play Terms of Service. Google has no obligation to provide maintenance or support for the App.

20. GENERAL

These Terms, the Privacy Policy and any program agreement mentioned in section 9 are the whole agreement between you and us about the Services.
If a court finds part of these Terms unenforceable, the rest stays in effect.
If we do not enforce a right, we do not give it up.
You may not transfer your rights under these Terms. We may transfer ours to a company that takes over the Services, provided your rights are not reduced.
We are not responsible for delays or failures caused by events beyond our reasonable control.
If we translate these Terms, the English version prevails, to the extent the law allows.

21. CONTACT

Asymmetric Labs FZC, doing business as Taller
Business Centre, Sharjah Publishing City Free Zone, Sharjah, United Arab Emirates
contact@tallerapp.xyz