1. Agreement
These Terms of Use (“Terms”) are a binding agreement between you and Massive Interface LLC, a Delaware limited liability company (“Massive Interface,” “we,” “us,” or “our”), governing the Hang Time iOS application, bundle ID com.mi.hangtime, and its related pages on massiveinterface.com (together, the “Service”). By downloading, installing, purchasing, accessing, or using the Service, you agree to these Terms and the Privacy Policy. If you do not agree, do not use the Service.
2. Eligibility and supervision
You must be legally capable of agreeing to these Terms. If you are under the age of legal majority where you live, a parent or legal guardian must review and agree to these Terms for you and directly supervise every use of the Service. The adult permitting use is responsible for the minor’s conduct, safety, and compliance. Do not allow any person to use the app who cannot reliably understand and follow the safety rules.
3. Exercise and device safety
YOU ARE RESPONSIBLE FOR DECIDING WHETHER, WHERE, AND HOW TO EXERCISE SAFELY. The Service cannot inspect your surroundings, assess your fitness, or verify that a pocket or pouch will retain your device.
- Start while standing still. Use the eight-second countdown to secure your iPhone in a snug, zipped pocket or secure waist pouch before jumping rope.
- Keep both hands on your rope. Never hold, toss, throw, or intentionally drop your phone as part of a workout.
- Use a clear area with enough space for the rope, suitable footwear, and a stable exercise surface. Keep the rope clear of people, pets, traffic, stairs, water, fixtures, and fragile property.
- Stop jumping before taking the phone out, unlocking the on-screen controls, or ending a session. Stop if the phone moves out of position or you feel pain, dizziness, or unusual discomfort.
- Follow device-manufacturer instructions and venue rules. Use ordinary, comfortable skips; statistics are never a reason to jump higher or take additional risks.
- Keep HangTime open while tracking. Pocket mode dims the display and protects controls; locking the phone or leaving the app pauses measurement.
4. Voluntary assumption of risk and release
You understand that using the Service as contemplated may involve open and obvious as well as unexpected risks, including falls, strains, collisions, rope contact, a device coming loose, device or battery damage, injuries to bystanders or animals, property damage, data loss, and other harm. To the fullest extent permitted by law, you knowingly and voluntarily assume all risks arising from exercise and device handling in connection with the Service, whether or not described here.
To the fullest extent permitted by law, you release and agree not to hold Massive Interface and its members, managers, officers, employees, contractors, agents, affiliates, licensors, and service providers liable for claims, injuries, death, losses, costs, or property damage arising from those physical activities, except to the extent a release is prohibited by law. Nothing in these Terms releases liability that cannot lawfully be released, including liability that applicable law does not permit us to disclaim.
5. Fitness estimates and measurement limits
The Service is a fitness tracking tool, not medical advice, safety equipment, or a scientific instrument. Jump counts, active time, airtime, pace, and calories are estimates affected by pocket fit, body movement, device orientation, hardware, software, and interruptions. Airtime describes detected low-acceleration time, not a verified measurement of time with both feet off the ground. Rope turns and double-unders are not counted separately. Calorie estimates use body weight, detected active time, and pace-based metabolic-equivalent values; actual energy expenditure varies. Do not rely on the Service to diagnose or treat a condition, determine exercise safety, or protect people, devices, data, or property.
6. License and restrictions
Subject to these Terms, we grant you a limited, personal, revocable, non-exclusive, non-transferable license to use the Service on Apple-branded products you own or control as permitted by Apple’s usage rules. You may not copy, sell, sublicense, redistribute, rent, reverse engineer, bypass security or purchase controls, automate, scrape, falsify records, interfere with the Service, introduce malicious code, impersonate another person, or use the Service unlawfully, except where applicable law expressly permits an activity despite this restriction.
7. Local profile and session history
Your profile, saved workouts, and interrupted-session checkpoints are stored on your iPhone. Availability depends on local storage and any device backups you control. The app does not provide a workout account or cloud synchronization. You can edit your profile and delete sessions or all local data. Deletion cannot be undone in the app. Measurements or unsaved portions of an interrupted session may be lost.
8. External services
The current Service does not display house ads. It may open external pages, including Apple’s purchase services and our legal pages. We do not control the availability, content, security, privacy practices, or terms of Apple or other external services. Your use of an external service is at your own risk and subject to its terms.
9. HangTime Pro purchases
HangTime Pro unlocks calorie estimates and advanced workout statistics and charts. The optional weekly subscription is US $1.99 per week. The optional lifetime purchase is a one-time, non-consumable purchase of US $14.99. Apple displays the actual localized price, taxes, and transaction terms before purchase.
The weekly subscription renews automatically unless canceled at least 24 hours before the current period ends. Payment is charged to your Apple Account at confirmation; renewal is charged within 24 hours before the end of the current period. Manage or cancel your subscription in Apple Account settings. Deleting the app does not cancel a subscription. Lifetime means access for the lifetime of that entitlement while the Service remains available; it does not promise the Service will remain available forever.
Existing valid Remove Ads purchases remain recognized for their original ad-removal entitlement if house ads return; they do not unlock Pro workout features. Apple processes payment and refund requests. RevenueCat helps validate and restore entitlements. Use Restore Purchases while signed in to the Apple Account that made the purchase. Family Sharing is available only if enabled for a product and supported by Apple. Access may be revoked for a refunded, reversed, fraudulent, or invalid transaction. Except as required by law or Apple policy, purchases are final and we cannot directly issue App Store refunds.
10. Apple terms
These Terms supplement Apple’s Standard Licensed Application End User License Agreement (“Apple EULA”), which is incorporated by reference. As between Apple and Massive Interface, we—not Apple—are responsible for the Service, support, and addressing claims concerning the Service, including product-liability, legal-compliance, consumer-protection, and intellectual-property claims. Apple has no obligation to furnish maintenance or support and is a third-party beneficiary entitled to enforce the applicable license terms. If these Terms conflict with mandatory Apple terms, the mandatory Apple terms control.
11. Ownership and feedback
The Service, including its software, visual design, text, artwork, trademarks, and other content, is owned by Massive Interface or its licensors and protected by law. No rights are granted except the limited license above. If you voluntarily provide suggestions or feedback, you grant us a perpetual, irrevocable, worldwide, transferable, sublicensable, royalty-free right to use it without restriction or compensation.
12. Suspension, changes, and termination
You may stop using the Service at any time. We may update, restrict, suspend, or discontinue any or all of the Service, and may terminate your license if you violate these Terms, create risk or misuse the Service. We do not promise any particular statistic, feature, advertisement, compatibility, or period of availability. Sections that by their nature should survive termination—including safety, assumption of risk, ownership, disclaimers, liability limits, indemnity, and dispute terms—will survive.
13. DISCLAIMER OF WARRANTIES
TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SERVICE IS PROVIDED “AS IS” AND “AS AVAILABLE,” WITH ALL FAULTS AND WITHOUT WARRANTIES OF ANY KIND, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING WARRANTIES OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, NON-INFRINGEMENT, ACCURACY, SAFETY, QUIET ENJOYMENT, AND UNINTERRUPTED OR ERROR-FREE OPERATION. WE DO NOT WARRANT THAT THE SERVICE WILL ACCURATELY DETECT, MEASURE, OR REPORT JUMPS, AIRTIME, OR CALORIES; THAT YOU WILL AVOID DAMAGING A DEVICE; THAT ANY ACTIVITY WILL BE SAFE; OR THAT DATA, PURCHASES, OR WORKOUT RECORDS WILL BE PRESERVED. NO ADVICE OR INFORMATION CREATES A WARRANTY. YOU ASSUME THE COST OF DEVICE REPAIR, REPLACEMENT, DATA RECOVERY, MEDICAL CARE, PROPERTY REPAIR, AND OTHER LOSSES. SOME JURISDICTIONS DO NOT ALLOW CERTAIN DISCLAIMERS, SO SOME OF THESE TERMS MAY NOT APPLY TO YOU.
14. LIMITATION OF LIABILITY
TO THE MAXIMUM EXTENT PERMITTED BY LAW, MASSIVE INTERFACE AND ITS MEMBERS, MANAGERS, OFFICERS, EMPLOYEES, CONTRACTORS, AGENTS, AFFILIATES, LICENSORS, AND SERVICE PROVIDERS WILL NOT BE LIABLE FOR PERSONAL INJURY, DEATH, PROPERTY OR DEVICE DAMAGE, LOSS OF DATA, LOSS OF WARRANTY, OR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY, OR PUNITIVE DAMAGES, OR LOST PROFITS, REVENUE, GOODWILL, OR USE, ARISING OUT OF OR RELATING TO THE SERVICE OR THESE TERMS, REGARDLESS OF LEGAL THEORY AND EVEN IF ADVISED THAT DAMAGE WAS POSSIBLE.
TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE TOTAL AGGREGATE LIABILITY OF MASSIVE INTERFACE AND THE PARTIES LISTED ABOVE FOR ALL CLAIMS ARISING OUT OF OR RELATING TO THE SERVICE OR THESE TERMS WILL NOT EXCEED THE GREATER OF (A) US $50 OR (B) THE AMOUNT YOU PAID FOR THE SERVICE DURING THE 12 MONTHS BEFORE THE EVENT GIVING RISE TO THE CLAIM. THESE LIMITS APPLY EVEN IF A REMEDY FAILS OF ITS ESSENTIAL PURPOSE. NOTHING EXCLUDES OR LIMITS LIABILITY THAT CANNOT LAWFULLY BE EXCLUDED OR LIMITED.
15. Indemnification
To the maximum extent permitted by law, you will defend, indemnify, and hold harmless Massive Interface and its members, managers, officers, employees, contractors, agents, affiliates, licensors, and service providers from third-party claims, demands, proceedings, damages, judgments, losses, liabilities, penalties, fines, settlements, and reasonable attorneys’ fees arising out of or relating to: (a) your exercise, handling, ownership, or use of a device; (b) injury, death, or property damage caused by you or a person you permit to use the Service; (c) your violation of these Terms or law; (d) falsifying records or misuse; or (e) your negligence, willful misconduct, or infringement of another person’s rights. We may control the defense, and you will reasonably cooperate. This section does not require a consumer to indemnify us where prohibited by applicable law.
16. Governing law and informal resolution
These Terms are governed by Delaware law and applicable U.S. federal law, without regard to conflict-of-law principles. The United Nations Convention on Contracts for the International Sale of Goods does not apply. Mandatory consumer law in your place of residence remains applicable where it cannot be waived.
Before starting arbitration or litigation, a claimant must send an individualized written notice describing the dispute, supporting facts, requested relief, and contact information to info@massiveinterface.com. The parties will attempt in good faith to resolve the dispute for 30 days. Any limitations period is tolled during that period.
17. Binding individual arbitration and class-action waiver
Binding individual arbitration. Except for the exceptions below, any dispute, claim, or controversy arising out of or relating to the Service, these Terms, or the Privacy Policy will be resolved by final, binding, individual arbitration administered by the American Arbitration Association (“AAA”) under its then-current Consumer Arbitration Rules. The Federal Arbitration Act governs this agreement. Arbitration may occur by documents, phone, video, or at a reasonably convenient location. The arbitrator may award the same individual relief available in court and will provide a reasoned decision. A court with jurisdiction may enter judgment on the award.
Exceptions. Either party may bring an eligible individual claim in small-claims court. Either party may seek injunctive or equitable relief in court for actual or threatened intellectual-property infringement, unauthorized access, or security abuse. Government agencies may enforce rights within their authority.
No class or representative proceedings. To the fullest extent permitted by law, disputes must be brought only in an individual capacity and not as a plaintiff or class member in any class, collective, consolidated, coordinated, mass, or representative action or arbitration. The arbitrator may award relief only to the individual party seeking it and only as necessary to resolve that party’s claim. If a final decision holds a particular claim or remedy cannot lawfully be arbitrated on an individual basis, only that claim or remedy will proceed in a court of competent jurisdiction after all arbitrable matters are resolved.
Fees. Payment of filing and arbitration fees is governed by AAA rules and applicable law. We will pay fees we are required to pay and will consider a reasonable request to pay additional consumer fees. We will not seek attorneys’ fees from you unless the arbitrator finds a claim frivolous or brought for an improper purpose.
30-day opt-out. You may opt out of this arbitration agreement by emailing info@massiveinterface.com with subject “Hang Time Arbitration Opt-Out” within 30 days after first accepting these Terms. Include your name, the approximate acceptance date, and a clear statement that you opt out. Opting out affects only this arbitration section. If you timely opt out, or if arbitration is found inapplicable, the parties consent to exclusive jurisdiction in the state and federal courts located in Delaware, except where applicable consumer law permits proceedings in another forum.
18. General terms
These Terms and incorporated policies are the entire agreement concerning the Service. If a provision is unenforceable, it will be enforced to the maximum permissible extent and the remainder will remain effective. Our failure to enforce a provision is not a waiver. You may not assign these Terms without our written consent; we may assign them in connection with a reorganization, transaction, or by operation of law. Headings are for convenience only. We are not liable for delay or failure caused by events beyond our reasonable control.
19. Changes and contact
We may update these Terms by posting the revised version and changing the date above. If a change is material, we will provide additional notice where required. Continued use after revised Terms become effective constitutes acceptance to the extent permitted by law; if you disagree, stop using the Service. Questions may be sent to info@massiveinterface.com.