Effective and Last Updated: August 16, 2026
These Terms of Service ("Terms") are an agreement between you and UltasDev ("we," "our," or "us") governing your use of the HeightMax mobile application (the "App" or "Service"). By downloading, purchasing, or using HeightMax, you agree to these Terms and the HeightMax Privacy Policy. If you do not agree, do not use the App.
You must be at least 13 years old to use HeightMax. HeightMax is not intended for children under 13. If you are under the age of legal majority where you live, a parent or legal guardian must review and agree to these Terms and supervise your use. You must also be legally permitted to use the Service where you live.
HeightMax provides accountless, device-based tools for saved height measurements, a rough family-height estimate, wellness and workout plans, sleep and nutrition logs, reminders, educational content, and optional AI coaching and meal analysis. Features may change, be corrected, or be discontinued as the App evolves.
HeightMax does not provide user accounts or account-based cloud sync. You are responsible for protecting your device and any backup file you export.
Subject to these Terms, we grant you a limited, personal, non-exclusive, non-transferable, revocable license to install and use HeightMax for lawful, non-commercial purposes.
You must not:
HeightMax is a paid subscription service. Access to subscription features requires an active subscription purchased through the applicable App store. HeightMax does not currently offer a free tier or free trial. Available billing periods and prices are displayed before purchase and may vary by country or platform.
Your applicable App-store account is charged when you confirm a purchase. Unless the store states otherwise, subscriptions renew automatically at the displayed price and billing period until cancelled. The App store—not UltasDev—processes your payment information.
You can cancel through your applicable App-store subscription settings. Deleting or resetting HeightMax does not cancel a subscription. Cancellation normally takes effect at the end of the current paid period, subject to the store's rules.
You may use Restore Purchases where available. A valid entitlement is required for paid features. After access lapses, HeightMax may continue to display locally stored history and a renewal offer, while limiting paid plan, coach, or measurement actions.
Refunds and billing disputes are governed and handled by the App store through which you purchased. We do not directly process App-store refunds.
Growth and health depend on many factors beyond the App. Consult a qualified healthcare professional about growth concerns, puberty, pain, nutrition deficiencies, supplements, exercise safety, or any medical condition.
AI Coach and meal analysis generate probabilistic output and may be incomplete, inaccurate, or inappropriate. They provide general wellness information only and must not be used for diagnosis, treatment, emergencies, supplement dosing, eating-disorder guidance, or other medical decisions. Do not submit information you do not want processed by the AI providers described in our Privacy Policy. You may report an AI response for safety review from inside the App.
Core App records are primarily local. HeightMax does not promise that data will survive device loss, corruption, uninstall, platform changes, or unsupported backup files. Use the in-App export feature if you want a portable copy, protect the unencrypted file, and verify imports yourself. Resetting the App does not cancel a subscription or erase records held independently by App stores and service providers. See the Privacy Policy for details.
HeightMax, including its software, branding, graphics, text, exercises, and other content, is owned by or licensed to UltasDev and protected by applicable intellectual-property laws. These Terms do not transfer ownership to you. Feedback you voluntarily provide may be used to improve the Service without an obligation to compensate you.
We may update, suspend, restrict, or discontinue part or all of HeightMax, including AI models, plan content, pricing for future billing periods, and supported platforms. Network, provider, device, or maintenance issues may interrupt access. We do not guarantee uninterrupted or error-free operation.
TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, HEIGHTMAX IS PROVIDED "AS IS" AND "AS AVAILABLE." WE DISCLAIM IMPLIED WARRANTIES, INCLUDING MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, ACCURACY, AND NON-INFRINGEMENT. NOTHING IN THESE TERMS EXCLUDES A WARRANTY OR RIGHT THAT CANNOT LAWFULLY BE EXCLUDED.
TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, ULTASDEV AND ITS PROVIDERS WILL NOT BE LIABLE FOR INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY, OR PUNITIVE DAMAGES, OR LOSS OF DATA, USE, PROFITS, OR GOODWILL ARISING FROM HEIGHTMAX. OUR TOTAL LIABILITY FOR CLAIMS RELATING TO THE SERVICE WILL NOT EXCEED THE AMOUNT YOU PAID FOR HEIGHTMAX DURING THE 12 MONTHS BEFORE THE EVENT GIVING RISE TO THE CLAIM. THESE LIMITS DO NOT APPLY WHERE THE LAW DOES NOT ALLOW THEM.
We may restrict or end access if you materially violate these Terms, abuse the Service, create security or legal risk, or where required by law. You may stop using HeightMax at any time, but you must separately cancel any active subscription through the applicable App store.
We may update these Terms to reflect changes to HeightMax, providers, or legal requirements. We will update the date above and provide additional notice where required. Continuing to use the Service after an effective update constitutes acceptance where permitted by law.
Questions about these Terms may be sent to ultasdevelopment@gmail.com or through www.ultasdev.com.