pinwell.
Terms of use

Terms of use.

Last updated: May 25, 2026

These terms describe the deal between you and PLAYRIOT LLC ("we," "us") when you use Pinwell (the "app"). They're written in plain English on purpose, because if you can't read your own terms of use, they aren't really doing their job.

Heads up. Pinwell is an educational reference for tracking your own medication log. It is not a medical device. It does not diagnose, prescribe, or advise. Always work from a licensed prescriber's plan.

1. Accepting these terms

By downloading or using Pinwell, you agree to these terms and to our Privacy Policy. If you don't agree, don't use the app. Apple's Apple Media Services Terms also apply to your App Store purchase and live above ours in any conflict.

2. What Pinwell is and isn't

What it is: a personal logbook for self-administered medication doses. You can record what you took, when, how much, and where you injected. You can do reconstitution math for vial dilutions. You can see a half-life-based level chart computed from your own log. You can run a body-diagram-based site rotation.

What it isn't: a medical device, a clinical decision support system, a prescription tool, a diagnostic tool, a drug reference, or a substitute for professional medical advice. Pinwell does not check your inputs against any clinical safety threshold, does not warn you about drug interactions, and does not adjust dosing in response to your log.

3. Eligibility

You must be at least 18 years old to use Pinwell. By using the app you represent that:

4. Medical disclaimer

Pinwell does not provide medical advice. The information in the app — including half-life-based level charts, reconstitution math, and rotation suggestions — is educational reference only. It is not a substitute for the professional judgment of a licensed healthcare provider. Never disregard professional medical advice or delay seeking it because of something you saw in this app. If you think you are having a medical emergency, call your local emergency number.

Half-life values are set by you when you add a medication. Pinwell's math takes those values as input and computes a deterministic decay curve. The result is a model, not a measurement of your serum concentration. Do not adjust your dose based on the chart without consulting your prescriber.

5. Purchases and the lifetime unlock

Pinwell is free to download. A one-time, non-consumable in-app purchase (the "Lifetime Unlock") removes the free-tier cap on medications and enables iCloud sync, family sharing, and any future Pro features.

6. Refunds

Refunds for App Store purchases are handled by Apple, not by us. To request a refund: open the App Store on iOS, tap your profile, tap Purchased, find Pinwell, and use Apple's "Report a Problem" link — or visit reportaproblem.apple.com. Apple's standard refund policy applies.

If Apple denies a refund and you believe there's been a serious bug or error, write us at [email protected] and we'll do what we reasonably can.

7. Your license to use Pinwell

We grant you a non-exclusive, non-transferable, revocable license to use Pinwell for your personal, non-commercial use on Apple devices you own or control, subject to Apple's Apple Media Services Terms. The license can be used by you and any Family Sharing members covered by your Lifetime Unlock. You may not redistribute, sublicense, sell, lease, or reverse-engineer the app.

8. Your data

The dose log you create belongs to you. Pinwell stores it on your device by default, and in your own private iCloud database if you turn on sync. We don't claim ownership of your log. We don't read your log. See the Privacy Policy for the full picture.

9. Acceptable use

Don't use Pinwell to do anything illegal, to harm yourself or others, to coordinate distribution of controlled substances, to falsify medical records, or to attempt to defeat the app's purchase verification. We reserve the right to refuse support to anyone using the app for any of these purposes.

10. Intellectual property

Pinwell, the name, the wordmark, the inkwell-and-quill mark, the body diagram illustration, the apothecary visual identity, the calculator widgets, and the code are all owned by PLAYRIOT LLC. "Pinwell" is a claimed trademark (USPTO filing pending). You're welcome to write about the app or screenshot it for personal use; commercial use of the mark or assets requires a separate written license.

11. Third-party services

Pinwell uses Apple's StoreKit (for purchase processing), CloudKit (optional, for sync), HealthKit (none, currently), and the iOS Notification framework. Each is governed by Apple's own terms. We do not embed any third-party SDKs from outside the Apple platform.

12. Warranty disclaimer

The app is provided "as is" and "as available." We disclaim all warranties, express or implied, including warranties of merchantability, fitness for a particular purpose, and non-infringement. We do not warrant that the half-life model, the level chart, or the reconstitution calculator will be accurate for your circumstances, that the app will be uninterrupted or error-free, or that defects will be corrected.

13. Limitation of liability

To the maximum extent permitted by law, PLAYRIOT LLC will not be liable for any indirect, incidental, special, consequential, or punitive damages — including loss of profits, data, or goodwill — arising from your use of Pinwell. Our total aggregate liability to you for any direct damages will not exceed the greater of (a) the amount you paid us for the app in the 12 months prior to the claim, or (b) $39 USD. Some jurisdictions don't allow these limitations; in those jurisdictions, our liability is limited to the maximum extent permitted.

14. Indemnification

You agree to indemnify and hold PLAYRIOT LLC harmless from any claim, demand, or damages — including reasonable attorneys' fees — arising from your misuse of the app, your violation of these terms, or your violation of any law or a third party's rights.

15. Apple as a third-party beneficiary

You acknowledge that these terms are between you and PLAYRIOT LLC, not between you and Apple. Apple is not responsible for the app or its content. Apple has no obligation to provide maintenance or support. Apple is a third-party beneficiary of these terms with the right to enforce them against you in connection with your use of the app.

16. Governing law & disputes

These terms are governed by the laws of the State of California, United States, without regard to its conflict-of-law principles. Any dispute will be resolved in the state or federal courts located in California, unless you are a consumer entitled by your local law to a different venue, in which case that venue applies.

17. Changes

If we materially change these terms, we'll update the "Last updated" date above and surface the change in-app the next time you open Pinwell after the change takes effect. Continuing to use the app after a material change means you accept the new terms.

18. Contact

Questions about these terms: [email protected]
Support: [email protected]

PLAYRIOT LLC · United States