Privacy Policy

Last updated: October 9, 2026

This policy explains what information the Tendonly app and the Tendonly website handle, where it goes, and the choices you have. Tendonly is operated by Ken Ohara ("we", "us"). If you have a question, email economicotechmexico@gmail.com.

We wrote this in plain language on purpose. If you are a young athlete, read it with a parent or guardian.

The short version

• In this version of the app, everything you enter stays on your phone (or in your web browser, if you use the web version). It is not sent to us, and we can't see it.
• We don't sell your information, show you ads, or use trackers or analytics in the app.
• You can delete everything at any time from Safety, terms and privacy > Delete all data on this device, or by deleting the app.
• If this ever changes (for example, when accounts start syncing between phones), we will update this policy and ask for your agreement again before any information leaves your device. For athletes under 13, we will ask a parent or guardian first.

What the app stores on your device

When you use Tendonly, the app saves the following on your phone or browser so it can work:

• Account details you type in: your name (athletes give a first name), role (athlete, parent, trainer, or team admin), the athlete's age group (under 13, 13 to 17, or 18 and older), and when you agreed to these terms.
• Injury and recovery information: the injury you pick, which side, your answers to the safety check, any diagnosis you enter, your rehab phase, and the phase tests you've passed.
• Daily check-ins: pain scores, swelling, hours of sleep, and any warning signs you report (such as numbness or a swollen calf).
• Sessions and food log: exercises you complete, how they felt, and the meals, water, and fruit and vegetables you tick off.
• Team details: team, school and sport names, a trainer's name and job title, team and trainer codes, the name of a parent you add, your sharing choices, and an activity history.

Injury, pain, and recovery information is health information. We treat it as sensitive even though, today, it never leaves your device.

What we collect

From the app: nothing. The app has no account server yet. The app does not include analytics, advertising, crash-reporting, or tracking software.

From the website: the Tendonly website does not use cookies, analytics, or forms. Like any website, the company that hosts it receives basic technical information so it can show you the page:

• Vercel hosts the website and the web version of the app. It receives your IP address, browser type, and the page you asked for, and may keep server logs for a short time for security and to run its service.

Vercel handles that information under its own privacy policy. The website's typefaces are served from Vercel too, so your browser doesn't contact a font provider. We can see Vercel's request logs for security and troubleshooting, but we don't use them to identify or track you.

Because neither the app nor the website tracks you over time or across other sites, they work the same whether or not your browser sends a Do Not Track signal. We don't allow other companies to track you across sites through Tendonly.

When the app opens other services

Some buttons open another app or website, and what happens there is covered by that company's privacy policy, not this one:

• "Find care near me" and "Find a clinic near me" open Google Maps with a search for urgent care. Google Maps may use your location if you allow it.
• "Call 911" opens your phone's dialer.
• "Message" and "Call" on a trainer's card open your phone's texting or phone app.

Sharing with trainers and parents

Tendonly lets an athlete choose what a linked trainer or a parent can see (check-ins, sessions, phase tests, food log, warning signs). In this version, sharing only works between accounts set up on the same device, and nothing is sent over the internet.

• A linked trainer on the same device always sees your injuries, rehab phase, phase tests and warning signs, and sees your daily check-ins unless you turn them off.
• A team admin on the same device sees your injuries, phase, and whether you checked in today.
• A parent you add is saved by name only and doesn't have a separate view yet.
• Accounts on the same device aren't password protected, so anyone using the device can switch into any account on it.

An athlete can change sharing in the Team tab, and can unlink a trainer they linked themselves. A trainer assigned by a team can be removed only by the team admin.

Warning signs can't be hidden from a linked trainer or parent, because they are about safety. But Tendonly is not an emergency service and nobody watches it around the clock. In an emergency, call 911.

Children and teens

• Under 13: a parent or guardian must set up Tendonly for the athlete. Tendonly is designed so that we do not collect personal information from children: everything stays on the device. Before we ever collect information from a child under 13, we will get verifiable consent from a parent or guardian, as the Children's Online Privacy Protection Act (COPPA) requires, and we will tell parents exactly what we collect and why.
• 13 to 17: athletes can set up Tendonly themselves, but we ask them to do it with a parent or guardian, who should read this policy and agree to the Terms with them.
• A parent or guardian can review or delete a child's information at any time, using Delete all data on this device or by deleting the app. If you have a question about your child's information, email economicotechmexico@gmail.com.

Consumer health data

Injury, pain and recovery information is "consumer health data" under laws like Washington's My Health My Data Act. Our separate Consumer Health Data Privacy Policy explains how we handle it and your rights. In short: it stays on your device, and we don't collect, share, or sell it.

Security

Because your information is stored on your device, the best protection is your phone's own lock (passcode, Face ID, or fingerprint). Anyone who can unlock your phone, or use the same web browser, can open Tendonly and see what's in it. Information stored in the web version lives in that browser's storage, so avoid using the web version on a shared computer.

How long information is kept

Information stays on your device until you delete it in the app or delete the app (or clear your browser's site data for the web version). We don't keep a copy.

Your choices and rights

• See your information: most of what Tendonly stores is shown in the app, and all of it is deleted by Delete all data on this device.
• Change it: you can update sharing choices, unlink a trainer, and add or finish injuries in the app.
• Delete it: use Delete all data on this device, or delete the app.
• Not sold or shared: we don't sell or share personal information, so there is nothing to opt out of.

Depending on where you live (for example, California), you may have other privacy rights. Email economicotechmexico@gmail.com and we will help, and we will never treat you differently for asking.

Changes to this policy

If we change this policy, we'll update the date at the top. If a change affects what happens to your information (for example, if information will start leaving your device), we will tell you in the app and ask you to agree again before it takes effect. For athletes under 13, we will ask a parent or guardian.

Contact

Ken Ohara
Email: economicotechmexico@gmail.com