destiff · Privacy Policy · Terms of Service
These Terms of Service ("Terms") are a binding agreement between you and EZ Recurring LLC ("we," "us," "our"), a limited liability company with its principal place of business at 15442 Ventura Blvd, Sherman Oaks, CA 91403, United States, governing your use of the Destiff mobile application and related services ("App" or "Service").
By downloading, installing, or using Destiff, you agree to these Terms and to our Privacy Policy, which is incorporated here by reference. If you do not agree, do not use the App.
If you are using Destiff on behalf of an organization, you represent that you have authority to bind that organization to these Terms.
You must be at least 18 years old to use Destiff. The App's onboarding does not accept ages below 18, and the Service is not directed to minors. You represent that you are 18 or older, that you have the legal capacity to enter into these Terms, and that you are not barred from using the Service under the laws of your jurisdiction.
Destiff uses your device camera and an on-device pose-estimation model to measure your range of motion in a set of mobility tests, scores those measurements against population reference norms for your age and sex, and generates a stretching program. It also tracks streaks, XP, levels, achievements, and an optional weekly league leaderboard.
Assessment videos are processed entirely on your device and are never uploaded. See the Privacy Policy for details.
Destiff is a general fitness and wellness product. It is not a medical device and is not intended to diagnose, treat, cure, mitigate, or prevent any disease, injury, or medical condition. Nothing in the App — including mobility scores, "mobility age," percentiles, flagged problem areas, pain questions, stretch recommendations, or any other content — constitutes medical advice, physical therapy, a clinical assessment, or a substitute for consultation with a qualified healthcare professional.
You should consult a physician, physical therapist, or other qualified healthcare provider before starting Destiff or any exercise program, and especially if you:
Never disregard professional medical advice or delay seeking it because of something you read or saw in Destiff. If you experience a medical emergency, call your local emergency number immediately.
Stretching, mobility work, and physical exercise involve inherent risks, including muscle strain, ligament and tendon injury, joint injury, falls, aggravation of pre-existing conditions, and in rare cases serious injury or death. You voluntarily assume all such risks. You are solely responsible for exercising within your own limits, using a safe environment, stopping immediately if you feel pain or discomfort, and deciding whether any given movement is appropriate for you.
Mobility measurements are estimated from computer-vision analysis of a short video and are affected by camera placement, device tilt, lighting, clothing, framing, body proportions, and model error. Scores, percentiles, and "mobility age" are approximations for motivation and self-tracking. They are not clinical measurements and must not be used for diagnosis, injury assessment, return-to-play decisions, or any medical or legal purpose. We make no representation that any measurement is accurate, repeatable, or comparable to a clinical goniometric assessment.
You are responsible for choosing a safe, clear, private space to record assessments, for the safe placement of your device, and for anyone else who may appear in frame. Do not record in a location where a fall would be dangerous.
Destiff has no user accounts, passwords, or email sign-up. Your profile, results, and history are stored in the App's private storage on your device and are identified by a randomly generated device UUID.
This has consequences you should understand:
Destiff offers an optional paid subscription ("Destiff Pro") that unlocks additional features. The plans available to you, their prices in your local currency, the billing period, and any introductory or free-trial terms are displayed on the paywall inside the App at the time of purchase. Those displayed terms govern your purchase.
You may cancel at any time, and cancellation takes effect at the end of the current billing period. You keep access to Pro features until then.
Deleting the App does not cancel your subscription. You must cancel through the app store.
All purchases are handled by Apple or Google, and refunds are governed by their policies. Request refunds directly from Apple (reportaproblem.apple.com) or Google Play. We cannot issue refunds for app store purchases. Except where required by law, subscription fees are non-refundable and we do not provide partial refunds for unused periods.
The App provides a "Restore Purchases" function that re-checks your entitlement with the app store. Because Destiff has no accounts, your entitlement is tied to your Apple ID or Google account, not to your device data.
Destiff may present a one-time discounted offer if you decline the main paywall. Such offers are shown once, are limited to the terms displayed at the time, and may be modified or withdrawn at any time for future users.
Subject to these Terms, we grant you a limited, personal, non-exclusive, non-transferable, non-sublicensable, revocable license to install and use Destiff on devices you own or control, for your own personal, non-commercial use.
You may not:
The weekly league leaderboard is an optional feature. If you use it, your display name, profile photo, rank, and points are visible to other Destiff users. Do not put anything in your display name or avatar that you do not want publicly visible.
Display names are limited to 20 characters. You may not choose a display name or upload an avatar that:
We may remove, rename, or reset any display name or avatar that violates these rules, at our discretion and without notice.
You agree not to manipulate leaderboard standings, including by falsifying score events, tampering with App data or network traffic, using modified or jailbroken builds, automating gameplay, or operating multiple installations to inflate your standing. The Service enforces a daily points cap and other anti-abuse controls; points submitted beyond those limits are discarded. We may reset, adjust, or remove any score, streak, or entry we reasonably believe was obtained in violation of this section, and may block your device identifier from the leaderboard.
Leaderboards, rankings, streaks, XP, levels, and achievements are entertainment features with no monetary value. They may be reset, recalculated, changed, or discontinued at any time. They cannot be sold, traded, or redeemed for anything of value.
You agree not to:
The App, its stretch catalog and exercise instructions, scoring methodology and reference norms, illustrations, share-card designs, text, user interface, trademarks, and all other content are owned by EZ Recurring LLC or its licensors and are protected by copyright, trademark, and other intellectual property laws. "Destiff" and our logos are our trademarks. Nothing in these Terms transfers ownership to you.
Destiff includes third-party software, including Google's MediaPipe pose-estimation model and open-source libraries, each governed by its own license. Those licenses continue to apply to those components.
You retain ownership of your assessment videos (which never leave your device), your profile photo, and your display name. By uploading a profile photo and display name for use on the leaderboard, you grant us a non-exclusive, royalty-free, worldwide license to host, store, reproduce, and display them within the Service for the purpose of operating the leaderboard. This license ends when you remove the content or ask us to delete your leaderboard entry.
You represent that you have the rights to any content you upload and that it does not infringe anyone else's rights.
Share images generated by the App are yours to post. You may share them on social media and elsewhere. We may not use your shared content in our own marketing without your separate permission.
If you send us suggestions, feature ideas, or feedback, you grant us an unrestricted, perpetual, royalty-free right to use them without obligation or compensation to you.
Destiff relies on third-party services, each governed by its own terms and privacy policy, which you are responsible for reviewing:
We are not responsible for the availability, accuracy, or conduct of third-party services.
THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE," WITHOUT WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED. TO THE MAXIMUM EXTENT PERMITTED BY LAW, WE DISCLAIM ALL WARRANTIES, INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND NON-INFRINGEMENT.
Without limiting the above, we do not warrant that:
Some jurisdictions do not allow the exclusion of certain warranties, so some of these exclusions may not apply to you.
TO THE MAXIMUM EXTENT PERMITTED BY LAW, EZ RECURRING LLC, ITS OWNERS, AFFILIATES, EMPLOYEES, CONTRACTORS, AND PARTNERS SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY, OR PUNITIVE DAMAGES, including personal injury, aggravation of an existing condition, medical expenses, lost profits, loss of data, loss of goodwill, or business interruption, arising out of or relating to your use of or inability to use the Service — whether based in contract, tort, negligence, strict liability, or any other theory, and even if we have been advised of the possibility of such damages.
OUR TOTAL AGGREGATE LIABILITY for all claims relating to the Service shall not exceed the greater of (a) the amount you paid us for the Service in the twelve (12) months preceding the claim, or (b) fifty U.S. dollars (US$50.00).
Nothing in these Terms limits liability that cannot be limited under applicable law, including liability for gross negligence, willful misconduct, fraud, or death or personal injury caused by our negligence where such limitation is prohibited. Some jurisdictions do not allow certain limitations, so parts of this section may not apply to you.
You agree to indemnify, defend, and hold harmless EZ Recurring LLC, its officers, members, employees, contractors, and agents from any claims, damages, losses, liabilities, and expenses (including reasonable attorneys' fees) arising out of or related to: your use of the Service; your violation of these Terms or of any law; your violation of the rights of any third party, including anyone appearing in content you record; or any injury you or a third party sustains in connection with exercises performed through or suggested by the App.
These Terms are governed by the laws of the State of California, United States, without regard to its conflict of laws principles.
Before filing any claim, contact us at team@ezr.llc with a description of the dispute. We will attempt in good faith to resolve it informally within 30 days.
Any dispute not resolved informally will be resolved by binding arbitration administered by the American Arbitration Association under its Consumer Arbitration Rules. Arbitration will take place in Los Angeles County, California, or, at your election, by telephone, videoconference, or on documents only. Judgment on the award may be entered in any court of competent jurisdiction.
YOU AND WE EACH WAIVE THE RIGHT TO A JURY TRIAL AND THE RIGHT TO PARTICIPATE IN A CLASS, COLLECTIVE, OR REPRESENTATIVE ACTION. The arbitrator may not consolidate claims or preside over any form of representative proceeding.
The following are not subject to arbitration and may be brought in court: claims of intellectual property infringement, claims for injunctive relief, and claims that qualify for small claims court in your jurisdiction.
You may opt out of the arbitration agreement in Section 15.2 by emailing team@ezr.llc within 30 days of first accepting these Terms, stating your intent to opt out. Opting out does not affect any other part of these Terms.
You may stop using the Service at any time by deleting the App (remember to cancel any subscription separately through your app store).
We may suspend or terminate your access to the Service or to specific features — including the leaderboard — at any time, with or without notice, if you violate these Terms, if we suspect fraud or abuse, or if we discontinue the Service. Sections 4, 10, 12, 13, 14, 15, and 20 survive termination.
We may modify, suspend, add to, or discontinue any part of the Service at any time, including features, content, scoring methodology, program logic, and subscription plans, without liability to you.
We may also update these Terms. Changes will be posted here with a new "Last Updated" date, and material changes will be communicated in the App where reasonably possible. Your continued use after changes take effect constitutes acceptance. If you do not agree, stop using the Service.
If you obtained Destiff through the Apple App Store, you acknowledge that: these Terms are between you and EZ Recurring LLC only, not Apple; Apple has no obligation to provide maintenance or support for the App; in the event of a failure to conform to any applicable warranty, you may notify Apple and Apple may refund the purchase price, and Apple has no other warranty obligation; Apple is not responsible for any claims relating to the App, including product liability, legal or regulatory non-compliance, or consumer protection claims; Apple is not responsible for the investigation, defense, settlement, or discharge of any third-party intellectual property claim relating to the App; and Apple and its subsidiaries are third-party beneficiaries of these Terms and may enforce them against you. You represent that you are not located in a country subject to a U.S. Government embargo or designated as a "terrorist supporting" country, and that you are not on any U.S. Government list of prohibited or restricted parties.
If any provision of these Terms is found invalid or unenforceable, that provision will be limited or severed to the minimum extent necessary, and the remaining Terms remain in full force. Our failure to enforce any provision is not a waiver of that or any other provision. You may not assign these Terms without our written consent; we may assign them in connection with a merger, acquisition, or sale of assets.
These Terms, together with our Privacy Policy and the plan terms shown on the in-app paywall at the time of purchase, constitute the entire agreement between you and EZ Recurring LLC regarding Destiff, and supersede any prior agreements, understandings, or representations.
EZ Recurring LLC
Email: team@ezr.llc
Address: 15442 Ventura Blvd, Sherman Oaks, CA 91403, United States
Last Updated: September 2026
Destiff © 2026 EZ Recurring LLC. All rights reserved.