Plumb
Terms of Use (EULA)
Last updated: July 5, 2026
These Terms of Use (“Terms”) are a legal agreement between you and Shimon Deitel (Joshua Deitel), the developer of Plumb (“the app”, “we”), governing your use of the app. By downloading, installing, or using Plumb, you agree to these Terms. If you do not agree, do not use the app.
What Plumb is
Plumb is a personal photo check-in and manual measurement tool. It lets you take a daily photo of yourself, draw your own straight reference line (a “plumb line”) over that photo, and compare photos from different dates side by side. Plumb is not a medical device, does not provide medical advice, and does not perform automated posture detection, diagnosis, or analysis of any kind. Every measurement in the app is drawn manually by you; the app does not interpret your body, your alignment, or your health in any way.
Not medical advice
Nothing in Plumb constitutes medical advice, diagnosis, or treatment. Plumb is a visual reference and journaling tool only. If you have concerns about your posture, spine, or physical health, consult a licensed physician, physical therapist, or other qualified healthcare provider. Do not use Plumb as a substitute for professional medical evaluation, and do not delay seeking medical care because of anything you observe in the app.
Acceptable use
You agree to use Plumb only for its intended purpose: taking and reviewing your own personal check-in photos. You agree not to:
- Use the app to photograph or store images of anyone other than yourself without their knowledge and consent.
- Reverse-engineer, decompile, or attempt to extract the source code of the app, except as permitted by applicable law.
- Use the app for any unlawful purpose or in a way that violates any applicable local, national, or international law or regulation.
- Attempt to circumvent, disable, or interfere with any purchase, licensing, or security mechanism in the app.
Your content
You retain all rights to the photos and annotations you create in Plumb. As explained in our Privacy Policy, your photos are stored only on your device and are never transmitted to us or any third party — we have no ability to access, view, or use your content.
Purchases, pricing, and refunds
Plumb offers one optional in-app purchase: “Plumb Pro” for $2.99 USD (price may vary by region and is set by Apple). This is a one-time, non-consumable purchase — it is billed once, does not renew, and does not recur as a subscription. Purchases are processed entirely by Apple through the App Store, and Apple's own terms and payment systems govern the transaction.
All purchases are subject to Apple's standard Licensed Application End User License Agreement, which applies to Plumb unless a separate agreement is provided here, and which takes precedence in the event of any conflict on matters it governs. Refund requests must be made directly to Apple through your App Store purchase history or by contacting Apple Support; we do not process payments and cannot issue refunds directly. Apple's refund policies apply.
If you have not purchased Plumb Pro, all free features of the app remain fully available to you, including unlimited daily check-ins, manual annotation, and comparison of any two dates.
License
Subject to your compliance with these Terms, we grant you a limited, non-exclusive, non-transferable, revocable license to download and use Plumb on any Apple device that you own or control, as permitted by the App Store's usage rules.
Disclaimer of warranties
Plumb is provided “as is” and “as available,” without warranties of any kind, whether express, implied, or statutory, including but not limited to implied warranties of merchantability, fitness for a particular purpose, and non-infringement. We do not warrant that the app will be uninterrupted, error-free, or free of defects. We make no representation or warranty that Plumb accurately measures, detects, diagnoses, or improves your posture or any physical condition — the app is a manual photo and measurement tool, and any conclusions you draw from its use are your own.
Limitation of liability
To the maximum extent permitted by applicable law, in no event will Shimon Deitel (Joshua Deitel) be liable for any indirect, incidental, special, consequential, or punitive damages, or any loss of data, use, goodwill, or other intangible losses, arising out of or related to your use of, or inability to use, Plumb, even if advised of the possibility of such damages. Our total liability to you for any claim arising from these Terms or the app will not exceed the amount you paid us in the twelve months preceding the claim (or $2.99 if you made no purchase).
Indemnification
You agree to indemnify and hold harmless Shimon Deitel (Joshua Deitel) from any claims, damages, losses, or expenses (including reasonable attorneys’ fees) arising from your use of the app or your violation of these Terms.
Termination
We may suspend or terminate your access to the app if you violate these Terms. You may stop using the app and delete it from your device at any time. Sections of these Terms that by their nature should survive termination (including disclaimers, limitation of liability, and indemnification) will survive.
Changes to these Terms
We may update these Terms from time to time. If we make material changes, we will update the “Last updated” date above. Continued use of the app after changes take effect means you accept the updated Terms.
Governing law
These Terms are governed by the laws of the State of New York, United States, without regard to its conflict-of-law principles, except where applicable consumer protection law in your country of residence requires otherwise.
Apple as a third-party beneficiary
You acknowledge that these Terms are between you and us only, not with Apple, and Apple is not responsible for the app or its content. Apple has no obligation to furnish any maintenance or support services for the app. However, Apple and its subsidiaries are third-party beneficiaries of these Terms, and upon your acceptance, Apple has the right to enforce these Terms against you as a third-party beneficiary.